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Abrosimov SV, Protsenko BO, Mannaa AS, Vlasenko VG, Guda SA, Pankin IA, Burlov AS, Koshchienko YV, Guda AA, Soldatov AV. Improving sensitivity of XANES structural fit to the bridged metal-metal coordination. J Synchrotron Radiat 2024; 31:S1600577524002091. [PMID: 38530834 DOI: 10.1107/s1600577524002091] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/16/2023] [Accepted: 03/03/2024] [Indexed: 03/28/2024]
Abstract
Hard X-ray absorption spectroscopy is a valuable in situ probe for non-destructive diagnostics of metal sites. The low-energy interval of a spectrum (XANES) contains information about the metal oxidation state, ligand type, symmetry and distances in the first coordination shell but shows almost no dependency on the bridged metal-metal bond length. The higher-energy interval (EXAFS), on the contrary, is more sensitive to the coordination numbers and can decouple the contribution from distances in different coordination shells. Supervised machine-learning methods can combine information from different intervals of a spectrum; however, computational approaches for the near-edge region of the spectrum and higher energies are different. This work aims to keep all benefits of XANES and extend its sensitivity towards the interatomic distances in the first and second coordination shells. Using a binuclear bridged copper complex as a case study and cross-validation analysis as a quantitative tool it is shown that the first 170 eV above the edge are already sufficient to balance the contributions of Cu-O/N scattering and Cu-Cu scattering. As a more general outcome this work highlights the trivial but often overlooked importance of using `longer' energy intervals of XANES for structural refinement and machine-learning predictions. The first 200 eV above the absorption edge still do not require parametrization of Debye-Waller damping and can be calculated within full multiple scattering or finite difference approximations with only moderately increased computational costs.
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Affiliation(s)
- S V Abrosimov
- The Smart Materials Research Institute, Southern Federal University, Sladkova 178/24, 344090 Rostov-on-Don, Russian Federation
| | - B O Protsenko
- The Smart Materials Research Institute, Southern Federal University, Sladkova 178/24, 344090 Rostov-on-Don, Russian Federation
| | - A S Mannaa
- The Smart Materials Research Institute, Southern Federal University, Sladkova 178/24, 344090 Rostov-on-Don, Russian Federation
| | - V G Vlasenko
- Institute of Physics, Southern Federal University, Stachki Ave 194, 344090 Rostov-on-Don, Russian Federation
| | - S A Guda
- The Smart Materials Research Institute, Southern Federal University, Sladkova 178/24, 344090 Rostov-on-Don, Russian Federation
| | - I A Pankin
- The Smart Materials Research Institute, Southern Federal University, Sladkova 178/24, 344090 Rostov-on-Don, Russian Federation
| | - A S Burlov
- Institute of Physical and Organic Chemistry, Stachki Ave 194/2, 344090 Rostov-on-Don, Russian Federation
| | - Y V Koshchienko
- Institute of Physical and Organic Chemistry, Stachki Ave 194/2, 344090 Rostov-on-Don, Russian Federation
| | - A A Guda
- The Smart Materials Research Institute, Southern Federal University, Sladkova 178/24, 344090 Rostov-on-Don, Russian Federation
| | - A V Soldatov
- The Smart Materials Research Institute, Southern Federal University, Sladkova 178/24, 344090 Rostov-on-Don, Russian Federation
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Sugahara H, Yoshimura T, Tamenori Y, Takano Y, Ogawa NO, Chikaraishi Y, Ohkouchi N. Nitrogen K-edge X-ray adsorption near-edge structure spectroscopy of chemically adsorbed ammonia gas on clay minerals and the 15N/ 14N-nitrogen isotopic fractionation. ANAL SCI 2024; 40:781-789. [PMID: 38311696 PMCID: PMC10961286 DOI: 10.1007/s44211-023-00503-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2023] [Accepted: 12/27/2023] [Indexed: 02/06/2024]
Abstract
Ammonia (NH3) is a simple and essential nitrogen carrier in the universe. Its adsorption on mineral surfaces is an important step in the synthesis of nitrogenous organic molecules in extraterrestrial environments. The nitrogen isotopic ratios provide a useful tool for understanding the formation processes of N-bearing molecules. In this study, adsorption experiments were conducted using gaseous NH3 and representative clay minerals. The strongly adsorbed NH3 was 15N-enriched in a state of chemical equilibrium between the adsorption and desorption on the siliceous host surface. The nitrogen K-edge X-ray adsorption near-edge structure spectroscopy study revealed that these initial ammonia gases were chemically adsorbed as ammonium ions (NH4+) on clay minerals.
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Affiliation(s)
- Haruna Sugahara
- Biogeochemistry Research Center (BGC), Japan Agency for Marine-Earth Science and Technology (JAMSTEC), Natsushima, Yokosuka, Kanagawa, 237-0061, Japan.
- Institute of Space and Astronautical Science (ISAS), Japan Aerospace Exploration Agency (JAXA), 3-1-1 Yoshinodai, Chuo-Ku, Sagamihara, Kanagawa, 252-5210, Japan.
| | - Toshihiro Yoshimura
- Biogeochemistry Research Center (BGC), Japan Agency for Marine-Earth Science and Technology (JAMSTEC), Natsushima, Yokosuka, Kanagawa, 237-0061, Japan
| | - Yusuke Tamenori
- Japan Synchrotron Radiation Research Institute, SPring-8, 1-1-1 Kouto, Sayo, Hyogo, 679-5198, Japan
- Organization for Research Promotion, Tokyo Metropolitan University, Minami-Osawa, 1-1, Hachioji, Tokyo, 192-0397, Japan
| | - Yoshinori Takano
- Biogeochemistry Research Center (BGC), Japan Agency for Marine-Earth Science and Technology (JAMSTEC), Natsushima, Yokosuka, Kanagawa, 237-0061, Japan
| | - Nanako O Ogawa
- Biogeochemistry Research Center (BGC), Japan Agency for Marine-Earth Science and Technology (JAMSTEC), Natsushima, Yokosuka, Kanagawa, 237-0061, Japan
| | - Yoshito Chikaraishi
- Biogeochemistry Research Center (BGC), Japan Agency for Marine-Earth Science and Technology (JAMSTEC), Natsushima, Yokosuka, Kanagawa, 237-0061, Japan
- Institute of Low Temperature Science, Hokkaido University, Sapporo, Hokkaido, 060-0819, Japan
| | - Naohiko Ohkouchi
- Biogeochemistry Research Center (BGC), Japan Agency for Marine-Earth Science and Technology (JAMSTEC), Natsushima, Yokosuka, Kanagawa, 237-0061, Japan
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Zhang L, Feng J, Zhu G, Yan J, Bartlett S, Wang Z, Hao Z, Gao Z, Wang R. Effect of Li 6.4La 3Zr 1.4Ta 0.6O 12 Fillers on the Interfacial Properties between Composite PEO-LiTFSI Electrolytes with Li Metal during Cycling. ACS Appl Mater Interfaces 2024; 16:13786-13794. [PMID: 38446136 DOI: 10.1021/acsami.3c19519] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/07/2024]
Abstract
PEO-LiX solid polymer electrolyte (SPE) with the addition of Li6.4La3Zr1.4Ta0.6O12 (LLZTO) fillers is considered as a promising solid-state electrolyte for solid-state Li-ion batteries. However, the developments of the SPE have caused additional challenges, such as poor contact interface and SPE/Li interface stability during cycling, which always lead to potentially catastrophic battery failure. The main problem is that the real impact of LLZTO fillers on the interfacial properties between SPE and Li metal is still unclear. Herein, we combined the electrochemical measurement and in situ synchrotron-based X-ray absorption near-edge structure (XANES) imaging technology to study the role of LLZTO fillers in directing SPE/Li interface electrochemical performance. In situ XRF-XANES mapping during cycling showed that addition of an appropriate amount of LLZTO fillers (50 wt %) can improve the interfacial contact and stability between SPE and Li metal without reacting with the PEO and Li salts. Additionally, it also demonstrated the beneficial effect of LLZTO particles for suppressing the interface reactions between the Li metal and PEO-LiTFSI SPE and further inhibiting Li-metal dendrite growth. The Li|LiFePO4 batteries deliver long cycling for over 700 cycles with a low-capacity fade rate of 0.08% per cycle at a rate of 0.3C, revealing tremendous potential in promoting the large-scale application of future solid-state Li-ion batteries.
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Affiliation(s)
- Lun Zhang
- Materials and Catalysis Laboratory, Department of Chemical Engineering, University College London, London WC1E 7JE, United Kingdom
| | - Junrun Feng
- School of Science, School of Chip Industry, Hubei University of Technology, Wuhan, Hubei 430068, China
| | - Guanghan Zhu
- Materials and Catalysis Laboratory, Department of Chemical Engineering, University College London, London WC1E 7JE, United Kingdom
| | - Jay Yan
- Materials and Catalysis Laboratory, Department of Chemical Engineering, University College London, London WC1E 7JE, United Kingdom
| | - Stuart Bartlett
- Diamond light source, Harwell Science& Innovation Campus, Didcot, Oxfordshire OX11 0DE, United Kingdom
| | - Zhipeng Wang
- Materials and Catalysis Laboratory, Department of Chemical Engineering, University College London, London WC1E 7JE, United Kingdom
| | - Zhangxiang Hao
- School of Science, School of Chip Industry, Hubei University of Technology, Wuhan, Hubei 430068, China
| | - Zhonghui Gao
- School of Materials Science and Engineering, Tianjin University, Tianjin 300350, China
| | - Ryan Wang
- Materials and Catalysis Laboratory, Department of Chemical Engineering, University College London, London WC1E 7JE, United Kingdom
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Yang Y, Huang Y, Liu Y, Jiao G, Dai H, Liu X, Hughes SS. The migration and transformation mechanism of vanadium in a soil-pore water-maize system. Sci Total Environ 2024; 913:169563. [PMID: 38145672 DOI: 10.1016/j.scitotenv.2023.169563] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/13/2023] [Revised: 12/05/2023] [Accepted: 12/19/2023] [Indexed: 12/27/2023]
Abstract
The migration mechanism of vanadium (V) in the soil-pore water-maize system has not been revealed. This study conducted pot experiments under artificial control conditions to reveal V's distribution and transport mechanism under different growth stages and V content gradient stress. The V content in the soil pore water gradually increased by an order of magnitude. The V content of pore water in the no-plant group was higher than that in the plant group, indicating that the maize roots absorbed V. The V exists in the form of pentavalent oxygen anions, in which H2VO4- occupies the most significant proportion. With increasing V content, the root area, root number, root length, and tip number decreased significantly. The malondialdehyde content in maize leaves showed an increasing trend, indicating the degree of lipid peroxidation was gradually enhanced. The V content was in the order of root > leaf > stem > fruit and maturity stage > flowering stage > jointing stage, respectively. The transfer coefficient reached a maximum under natural conditions, and increased gradually with the growth. The results of synchrotron radiation X-ray absorption near edge structure (XANES) analysis showed that Fe in maize roots mainly comprised of Fe2O3 and Fe3O4. The Fe in the soil is primarily existed in lepidocrocite and Fe2O3. The μ-XRF analysis showed that V and Fe enriched in the roots with a positive relationship, indicating the synergistic absorption of V and Fe by roots. Part of the Fe2+ reduced V5+ to V4+ or V3+ in the forms of VO2+, V(OH)2+, or V(OH)3 (s), and fixed V at the root. Soil weak acid-soluble fraction V and soil total V were vital factors to maize extraction. This study provides new insights into V biogeochemical behavior and a scientific basis for correctly evaluating its ecological and human health risks.
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Affiliation(s)
- Ying Yang
- State Key Laboratory of Collaborative Control and Joint Remediation of Soil and Water Pollution, College of Ecology and Environment, Chengdu University of Technology, Chengdu, Sichuan 610059, China
| | - Yi Huang
- State Key Laboratory of Collaborative Control and Joint Remediation of Soil and Water Pollution, College of Ecology and Environment, Chengdu University of Technology, Chengdu, Sichuan 610059, China; State Key Laboratory of Geohazard Prevention and Geoenvironment Protection, College of Geosciences, Chengdu University of Technology, Chengdu, Sichuan 610059, China.
| | - Yunhe Liu
- State Key Laboratory of Collaborative Control and Joint Remediation of Soil and Water Pollution, College of Ecology and Environment, Chengdu University of Technology, Chengdu, Sichuan 610059, China
| | - Ganghui Jiao
- State Key Laboratory of Collaborative Control and Joint Remediation of Soil and Water Pollution, College of Ecology and Environment, Chengdu University of Technology, Chengdu, Sichuan 610059, China
| | - Hao Dai
- State Key Laboratory of Collaborative Control and Joint Remediation of Soil and Water Pollution, College of Ecology and Environment, Chengdu University of Technology, Chengdu, Sichuan 610059, China
| | - Xiaowen Liu
- Center of Deep-Sea Research, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China
| | - Scott S Hughes
- Department of Geosciences, Idaho State University, Pocatello, ID 83209, USA
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Couturier J, Oularé PT, Collin B, Lallemand C, Kieffer I, Longerey J, Chaurand P, Rose J, Borschneck D, Angeletti B, Criquet S, Podor R, Pourkhorsandi H, Arrachart G, Levard C. Yttrium speciation variability in bauxite residues of various origins, ages and storage conditions. J Hazard Mater 2024; 464:132941. [PMID: 37979428 DOI: 10.1016/j.jhazmat.2023.132941] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/21/2023] [Revised: 10/04/2023] [Accepted: 11/04/2023] [Indexed: 11/20/2023]
Abstract
Bauxite residues (BRs) are highly alkaline wastes generated during alumina production from bauxite ore. Billions of tons have been accumulating worldwide for more than 100 years, they are stored in various forms, and pose environmental and societal issues. At the same time, BRs are promising secondary sources for the production of critical metals including rare earth elements (REEs). However, knowledge on REE speciation is lacking, and is consequently an obstacle to the development of large-scale extraction process. This study analyses the influence of origin of the bauxite ore (lateritic or karstic), the storage conditions and storage time on the properties of ten BR samples, with a particular focus on the speciation of yttrium, which is used as a proxy to identify the behaviour of heavy REE. A multi-scale approach linked yttrium speciation and the origin of the bauxite ore whereas no major variation was observed as a function of storage conditions or ageing of the BRs. Yttrium is mainly found in the form of xenotime phosphate particles in BRs of lateritic origin, while in karstic BRs, the majority of yttrium is probably adsorbed or incorporated into other minerals including iron oxyhydroxide and hydroxyapatite minerals.
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Affiliation(s)
- Julien Couturier
- Aix-Marseille Univ, CNRS, IRD, INRAE, CEREGE, 13545 Aix-en-Provence, France.
| | - Pierre Tamba Oularé
- Aix-Marseille Univ, CNRS, IRD, INRAE, CEREGE, 13545 Aix-en-Provence, France; ISMGB, BP 84 Boké, République de Guinée, France
| | - Blanche Collin
- Aix-Marseille Univ, CNRS, IRD, INRAE, CEREGE, 13545 Aix-en-Provence, France
| | - Claire Lallemand
- Aix-Marseille Univ, CNRS, IRD, INRAE, CEREGE, 13545 Aix-en-Provence, France
| | | | - Julien Longerey
- Aix-Marseille Univ, CNRS, IRD, INRAE, CEREGE, 13545 Aix-en-Provence, France
| | - Perrine Chaurand
- Aix-Marseille Univ, CNRS, IRD, INRAE, CEREGE, 13545 Aix-en-Provence, France
| | - Jérôme Rose
- Aix-Marseille Univ, CNRS, IRD, INRAE, CEREGE, 13545 Aix-en-Provence, France
| | - Daniel Borschneck
- Aix-Marseille Univ, CNRS, IRD, INRAE, CEREGE, 13545 Aix-en-Provence, France
| | - Bernard Angeletti
- Aix-Marseille Univ, CNRS, IRD, INRAE, CEREGE, 13545 Aix-en-Provence, France
| | - Stéven Criquet
- Aix-Marseille Univ, Avignon Université, CNRS, IRD, IMBE, Marseille, France
| | - Renaud Podor
- ICSM, Univ Montpellier, CEA, CNRS, ENSCM, Marcoule, France
| | - Hamed Pourkhorsandi
- Laboratoire G-Time, Université Libre de Bruxelles, CP 160/02, 50, Av. F.D. Roosevelt, 1050 Brussels, Belgium
| | | | - Clément Levard
- Aix-Marseille Univ, CNRS, IRD, INRAE, CEREGE, 13545 Aix-en-Provence, France.
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Li B, Gao J, Shao J, Geng R, Qin Z, Wang J, Fan W, Dong M. A Fine Analysis of Zn Species Structure and Distribution in Zn/ZSM-5 Catalysts by Linear Combination Fitting Analysis of XANES Spectra. Molecules 2024; 29:631. [PMID: 38338375 PMCID: PMC10856302 DOI: 10.3390/molecules29030631] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2023] [Revised: 01/25/2024] [Accepted: 01/26/2024] [Indexed: 02/12/2024] Open
Abstract
Investigating the distribution of different Zn species on Zn-containing zeolite catalysts is crucial for identifying the active sites and establishing the relationship between the catalyst's structure and its activity in the process of ethylene aromatization. By utilizing X-ray absorption near edge spectra (XANES) of various reference samples, this study employed linear combination fitting (LCF) analysis on XANES spectra of real samples to accurately measure the changes in the distribution of Zn species in Zn-containing HZSM-5 zeolites under different Zn sources and loadings. The results showed that ZnOH+, ZnO clusters, and ZnO crystalline structures coexist in Zn/HZSM-5 catalysts prepared through physical mixing and incipient wet impregnation methods. A similar trend was observed for catalysts prepared using different methods, with an increase in Zn content resulting in a decrease in the proportion of ZnOH+ and a significant increase in the amount of larger ZnO crystals. Furthermore, ZnO clusters were confined within the zeolite pores. The findings of this study established a direct correlation between the amount of ZnOH+ determined through LCF analysis and both the rate of hydrogen production and the rate of aromatics formation, providing strong evidence for the catalytic role of ZnOH+ as an active center for dehydrogenation, which plays a key role in promoting the formation of aromatics. The method of LCF analysis on XANES spectra allows for the determination of the local structure of Zn species, facilitating a more precise analysis based on the distribution of these species. This method not only provides detailed information about the Zn species but also enhances the accuracy of the overall analysis.
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Affiliation(s)
- Baichao Li
- State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan 030001, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Jie Gao
- College of Chemistry and Materials, Taiyuan Normal University, Jinzhong 030619, China
| | - Jiabei Shao
- State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan 030001, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Rui Geng
- State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan 030001, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Zhangfeng Qin
- State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan 030001, China
| | - Jianguo Wang
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Weibin Fan
- State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan 030001, China
| | - Mei Dong
- State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan 030001, China
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Blommaert H, Sarret G, Chavez E, Smolders E, Vanderschueren R. Cadmium speciation in cacao beans changes during a fermentation-like incubation. Food Chem 2024; 431:137068. [PMID: 37562334 DOI: 10.1016/j.foodchem.2023.137068] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2023] [Revised: 07/24/2023] [Accepted: 07/30/2023] [Indexed: 08/12/2023]
Abstract
Cadmium (Cd) concentrations in cacao often exceed food limits. Recently, it was shown that cacao bean fermentation enhances Cd solubility, opening potential for Cd mitigation in cacao products. This study was set-up to identify changes in Cd speciation during fermentation. X-Ray absorption spectroscopy (XAS) complemented with speciation calculations, were used on samples collected from high and low Cd farms, that were subjected to a fermentation-like incubation that reached high temperatures (>45 °C) and acidic pH (<5). Incubation decreased nib Cd concentration up to a factor 1.5 and changed Cd complexation in high Cd beans from sulphur to oxygen ligands, likely due to pH changes. In beans with lower Cd concentrations, Cd was complexed before and after incubation with oxygen-ligands. A combination of pH changes and/or phytate breakdown may explain the migration of Cd outward from the nib. XAS and speciation calculations proved complimentary techniques and indicated similar speciation changes during fermentation.
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Affiliation(s)
- Hester Blommaert
- Université Grenoble Alpes, Université Savoie Mont Blanc, CNRS, IRD, Univ. G. Eiffel, ISTerre, Grenoble, France.
| | - Géraldine Sarret
- Université Grenoble Alpes, Université Savoie Mont Blanc, CNRS, IRD, Univ. G. Eiffel, ISTerre, Grenoble, France.
| | - Eduardo Chavez
- Escuela Superior Politécnica del Litoral, ESPOL, Facultad de Ciencias de la Vida, Campus Gustavo Galindo Km. 30.5 Vía Perimetral, P.O. Box 09-01-5863, Guayaquil, Ecuador.
| | - Erik Smolders
- Division of Soil and Water Management, KU Leuven, Kasteelpark Arenberg 20, 3001 Heverlee, Belgium.
| | - Ruth Vanderschueren
- Division of Soil and Water Management, KU Leuven, Kasteelpark Arenberg 20, 3001 Heverlee, Belgium.
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Xu S, Gu C, Rodrigues JLM, Li C, Bohannan B, Nüsslein K, Margenot AJ. Soil phosphorus cycling across a 100-year deforestation chronosequence in the Amazon rainforest. Glob Chang Biol 2024; 30:e17077. [PMID: 38273583 DOI: 10.1111/gcb.17077] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/08/2023] [Revised: 11/09/2023] [Accepted: 11/13/2023] [Indexed: 01/27/2024]
Abstract
Deforestation of tropical rainforests is a major land use change that alters terrestrial biogeochemical cycling at local to global scales. Deforestation and subsequent reforestation are likely to impact soil phosphorus (P) cycling, which in P-limited ecosystems such as the Amazon basin has implications for long-term productivity. We used a 100-year replicated observational chronosequence of primary forest conversion to pasture, as well as a 13-year-old secondary forest, to test land use change and duration effects on soil P dynamics in the Amazon basin. By combining sequential extraction and P K-edge X-ray absorption near edge structure (XANES) spectroscopy with soil phosphatase activity assays, we assessed pools and process rates of P cycling in surface soils (0-10 cm depth). Deforestation caused increases in total P (135-398 mg kg-1 ), total organic P (Po ) (19-168 mg kg-1 ), and total inorganic P (Pi ) (30-113 mg kg-1 ) fractions in surface soils with pasture age, with concomitant increases in Pi fractions corroborated by sequential fractionation and XANES spectroscopy. Soil non-labile Po (10-148 mg kg-1 ) increased disproportionately compared to labile Po (from 4-5 to 7-13 mg kg-1 ). Soil phosphomonoesterase and phosphodiesterase binding affinity (Km ) decreased while the specificity constant (Ka ) increased by 83%-159% in 39-100y pastures. Soil P pools and process rates reverted to magnitudes similar to primary forests within 13 years of pasture abandonment. However, the relatively short but representative pre-abandonment pasture duration of our secondary forest may not have entailed significant deforestation effects on soil P cycling, highlighting the need to consider both pasture duration and reforestation age in evaluations of Amazon land use legacies. Although the space-for-time substitution design can entail variation in the initial soil P pools due to atmospheric P deposition, soil properties, and/or primary forest growth, the trend of P pools and process rates with pasture age still provides valuable insights.
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Affiliation(s)
- Suwei Xu
- Department of Crop Sciences, University of Illinois at Urbana-Champaign, Urbana, Illinois, USA
| | - Chunhao Gu
- Department of Plant and Soil Sciences, Delaware Environmental Institute, University of Delaware, Newark, Delaware, USA
| | - Jorge L M Rodrigues
- Department of Land, Air and Water Resources, University of California Davis, Davis, California, USA
- Environmental Genomics and Systems Biology Division, Lawrence Berkeley National Laboratory, Berkeley, California, USA
| | - Chongyang Li
- Department of Crop Sciences, University of Illinois at Urbana-Champaign, Urbana, Illinois, USA
| | - Brendan Bohannan
- Institute of Ecology and Evolution, University of Oregon, Eugene, Oregon, USA
| | - Klaus Nüsslein
- Department of Microbiology, University of Massachusetts Amherst, Amherst, Massachusetts, USA
| | - Andrew J Margenot
- Department of Crop Sciences, University of Illinois at Urbana-Champaign, Urbana, Illinois, USA
- Agroecosystem Sustainability Center (ASC), Institute for Sustainability, Energy and Environment (iSEE), University of Illinois at Urbana-Champaign, Urbana, Illinois, USA
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9
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Muramatsu Y, Ooe T, Hirai Y. Total electron yield (TEY) efficiency of sp 2 and sp 3 carbon atoms in the TEY-X-ray absorption near-edge structure ( XANES) of 1,4,7,10-alkyltetracenes. ANAL SCI 2023; 39:2041-2048. [PMID: 37702954 DOI: 10.1007/s44211-023-00421-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2023] [Accepted: 08/22/2023] [Indexed: 09/14/2023]
Abstract
X-ray absorption near-edge structure (XANES) in the CK region of 1,4,7,10-alkyltetracenes, which are composed of sp2-C atoms in the tetracene ring and sp3-C atoms in the alkyl-chains, are measured using the total electron yield (TEY) and theoretically analyzed by DFT calculations to quantitatively investigate the π* and σ* peak intensities in the TEY-CK-XANES. The calculated π*/σ* peak intensity ratios are well approximated by the linear functions passing through the origin as a function of the sp2-C fraction, which is expressed as sp2-C/(sp2-C + sp3-C). In contrast, the measured π*/σ* peak intensity ratios are well approximated by curve functions passing through the origin, considering the TEY efficiency between sp2-C and sp3-C. The approximated curve functions indicate that the TEY efficiency of sp3-C is lower than that of sp2-C even in molecules. This confirms that the TEY efficiency of sp2-C and sp3-C should be considered in quantitative discussions on the sp2-C and sp3-C fractions from TEY-CK-XANES of carbon materials.
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Affiliation(s)
- Yasuji Muramatsu
- Graduate School of Engineering, University of Hyogo, 2617 Shosha, Himeji, Hyogo, 671-2201, Japan.
| | - Tsuyoshi Ooe
- Graduate School of Engineering, University of Hyogo, 2617 Shosha, Himeji, Hyogo, 671-2201, Japan
| | - Yuma Hirai
- Graduate School of Engineering, University of Hyogo, 2617 Shosha, Himeji, Hyogo, 671-2201, Japan
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10
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Chiara A, Raimondi G, Merkle R, Maier J, Bordenca CV, Pipitone C, Longo A, Giannici F. Interface Diffusion and Compatibility of (Ba,La)FeO 3-δ Perovskite Electrodes in Contact with Barium Zirconate and Ceria. ACS Appl Mater Interfaces 2023; 15:50225-50236. [PMID: 37862611 PMCID: PMC10623510 DOI: 10.1021/acsami.3c13013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/31/2023] [Accepted: 10/06/2023] [Indexed: 10/22/2023]
Abstract
Ba1-xLaxFeO3-δ perovskites (BLF) capable of conducting electrons, protons, and oxygen ions are promising oxygen electrodes for efficient solid oxide cells (fuel cells or electrolyzers), an integral part of prospected large-scale power-to-gas energy storage systems. We investigated the compatibility of BLF with lanthanum content between 5 and 50%, in contact with oxide-ion-conducting Ce0.8Gd0.2O2-δ and proton-conducting BaZr0.825Y0.175O3-δ electrolytes, annealing the electrode-electrolyte bilayers at high temperature to simulate thermal stresses of fabrication and prolonged operation. By employing both bulk X-ray diffraction and synchrotron X-ray microspectroscopy, we present a space-resolved picture of the interaction between electrode and electrolyte as what concerns cation interdiffusion, exsolution, and phase stability. We found that the phase stability of BLF in contact with other phases is correlated with the Goldschmidt tolerance factor, in turn determined by the La/Ba ratio, and appropriate doping strategies with oversized cations (Zn2+, Y3+) could improve structural stability. While extensive reactivity and/or interdiffusion was often observed, we put forward that most products of interfacial reactions, including proton-conducting Ba(Ce,Gd)O3-δ and mixed-conducting (Ba,La)(Fe,Zr,Y)O3-δ, may not be very detrimental for practical cell operation.
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Affiliation(s)
- Alessandro Chiara
- Dipartimento
di Fisica e Chimica, Università di
Palermo, 90128 Palermo, Italy
| | - Giulia Raimondi
- Max
Planck Institute for Solid State Research, 70569 Stuttgart, Germany
| | - Rotraut Merkle
- Max
Planck Institute for Solid State Research, 70569 Stuttgart, Germany
| | - Joachim Maier
- Max
Planck Institute for Solid State Research, 70569 Stuttgart, Germany
| | | | - Candida Pipitone
- Dipartimento
di Fisica e Chimica, Università di
Palermo, 90128 Palermo, Italy
| | - Alessandro Longo
- Istituto
per lo Studio dei Materiali Nanostrutturati (ISMN)-CNR, UOS Palermo, 90146 Palermo, Italy
- European
Synchrotron Radiation Facility, 38000 Grenoble, France
| | - Francesco Giannici
- Dipartimento
di Fisica e Chimica, Università di
Palermo, 90128 Palermo, Italy
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11
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Ostervold L, Smerigan A, Liu MJ, Filardi LR, Vila FD, Perez-Aguilar JE, Hong J, Tarpeh WA, Hoffman AS, Greenlee LF, Clark EL, Janik MJ, Bare SR. Cation Incorporation into Copper Oxide Lattice at Highly Oxidizing Potentials. ACS Appl Mater Interfaces 2023; 15:47025-47036. [PMID: 37756387 DOI: 10.1021/acsami.3c10296] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/29/2023]
Abstract
Electrolyte cations can have significant effects on the kinetics and selectivity of electrocatalytic reactions. We show an atypical mechanism through which electrolyte cations can impact electrocatalyst performance─direct incorporation of the cation into the oxide electrocatalyst lattice. We investigate the transformations of copper electrodes in alkaline electrochemistry through operando X-ray absorption spectroscopy in KOH and Ba(OH)2 electrolytes. In KOH electrolytes, both the near-edge structure and extended fine-structure agree with previous studies; however, the X-ray absorption spectra vary greatly in Ba(OH)2 electrolytes. Through a combination of electronic structure modeling, near-edge simulation, and postreaction characterization, we propose that Ba2+ cations are directly incorporated into the lattice and form an ordered BaCuO2 phase at potentials more oxidizing than 200 mV vs the normal hydrogen electrode (NHE). BaCuO2 formation is followed by further oxidation to a bulk Cu3+-like BaxCuyOz phase at 900 mV vs NHE. Additionally, during reduction in Ba(OH)2 electrolyte, we find both Cu-O bonds and Cu-Ba scattering persist at potentials as low as -400 mV vs NHE. To our knowledge, this is the first evidence for direct oxidative incorporation of an electrolyte cation into the bulk lattice to form a mixed oxide electrode. The oxidative incorporation of electrolyte cations to form mixed oxides could open a new route for the in situ formation of active and selective oxidation electrocatalysts.
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Affiliation(s)
- Lars Ostervold
- Department of Chemical Engineering, Pennsylvania State University, University Park, Pennsylvania 16802, United States
| | - Adam Smerigan
- Department of Chemical Engineering, Pennsylvania State University, University Park, Pennsylvania 16802, United States
| | - Matthew J Liu
- Department of Chemical Engineering, Stanford University, Stanford, California 94305, United States
| | - Leah R Filardi
- Department of Chemical Engineering, University of California, Davis, Davis, California 95616, United States
| | - Fernando D Vila
- Department of Physics, University of Washington, Seattle, Washington 98195, United States
| | - Jorge E Perez-Aguilar
- Stanford Synchrotron Radiation Lightsource, SLAC National Accelerator Laboratory, Menlo Park, California 94025, United States
| | - Jiyun Hong
- Stanford Synchrotron Radiation Lightsource, SLAC National Accelerator Laboratory, Menlo Park, California 94025, United States
| | - William A Tarpeh
- Department of Chemical Engineering, Stanford University, Stanford, California 94305, United States
| | - Adam S Hoffman
- Stanford Synchrotron Radiation Lightsource, SLAC National Accelerator Laboratory, Menlo Park, California 94025, United States
| | - Lauren F Greenlee
- Department of Chemical Engineering, Pennsylvania State University, University Park, Pennsylvania 16802, United States
| | - Ezra Lee Clark
- Department of Chemical Engineering, Pennsylvania State University, University Park, Pennsylvania 16802, United States
| | - Michael J Janik
- Department of Chemical Engineering, Pennsylvania State University, University Park, Pennsylvania 16802, United States
| | - Simon R Bare
- Stanford Synchrotron Radiation Lightsource, SLAC National Accelerator Laboratory, Menlo Park, California 94025, United States
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12
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Mijovilovich A, Cloetens P, Lanzirotti A, Newville M, Wellenreuther G, Kumari P, Katsaros C, Carrano CJ, Küpper H, Küpper FC. Synchrotron X-rays reveal the modes of Fe binding and trace metal storage in the brown algae Laminaria digitata and Ectocarpus siliculosus. Metallomics 2023; 15:mfad058. [PMID: 37740572 PMCID: PMC10588612 DOI: 10.1093/mtomcs/mfad058] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2023] [Accepted: 09/21/2023] [Indexed: 09/24/2023]
Abstract
Iron is accumulated symplastically in kelp in a non-ferritin core that seems to be a general feature of brown algae. Microprobe studies show that Fe binding depends on tissue type. The sea is generally an iron-poor environment and brown algae were recognized in recent years for having a unique, ferritin-free iron storage system. Kelp (Laminaria digitata) and the filamentous brown alga Ectocarpus siliculosus were investigated using X-ray microprobe imaging and nanoprobe X-ray fluorescence tomography to explore the localization of iron, arsenic, strontium, and zinc, and micro-X-ray absorption near-edge structure (μXANES) to study Fe binding. Fe distribution in frozen hydrated environmental samples of both algae shows higher accumulation in the cortex with symplastic subcellular localization. This should be seen in the context of recent ultrastructural insight by cryofixation-freeze substitution that found a new type of cisternae that may have a storage function but differs from the apoplastic Fe accumulation found by conventional chemical fixation. Zn distribution co-localizes with Fe in E. siliculosus, whereas it is chiefly located in the L. digitata medulla, which is similar to As and Sr. Both As and Sr are mostly found at the cell wall of both algae. XANES spectra indicate that Fe in L. digitata is stored in a mineral non-ferritin core, due to the lack of ferritin-encoding genes. We show that the L. digitata cortex contains mostly a ferritin-like mineral, while the meristoderm may include an additional component.
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Affiliation(s)
- Ana Mijovilovich
- Czech Academy of Sciences, Biology Centre, Institute of Plant Molecular Biology, Laboratory of Plant Biophysics and Biochemistry, Branišovska 1160/31, 370 05 Česke Budějovice, Czech Republic
| | - Peter Cloetens
- ESRF—The European Synchrotron Radiation Facility, Beamline ID16A, 71, avenue des Martyrs CS 40220 38043 Grenoble Cedex 9, France
| | - Antonio Lanzirotti
- Argonne National Laboratory, The University of Chicago, Building 434A, 9700 South Cass Avenue, Lemont, IL 60439, USA
| | - Matt Newville
- Argonne National Laboratory, The University of Chicago, Building 434A, 9700 South Cass Avenue, Lemont, IL 60439, USA
| | | | - Puja Kumari
- School of Biological Sciences, University of Aberdeen, Cruickshank Building, St Machar Drive, Aberdeen AB24 3UU, UK
| | - Christos Katsaros
- Department of Biology, National and Kapodistrian University of Athens, Panepistimiopolis, Athens 157 84, Hellas, Greece
| | - Carl J Carrano
- Department of Chemistry and Biochemistry, San Diego State University, CA 92182-1030,USA
| | - Hendrik Küpper
- Czech Academy of Sciences, Biology Centre, Institute of Plant Molecular Biology, Laboratory of Plant Biophysics and Biochemistry, Branišovska 1160/31, 370 05 Česke Budějovice, Czech Republic
- Department of Experimental Plant Biology, University of South Bohemia, Branišovská 31/1160, 370 05 České Budějovice, Czech Republic
| | - Frithjof C Küpper
- School of Biological Sciences, University of Aberdeen, Cruickshank Building, St Machar Drive, Aberdeen AB24 3UU, UK
- Department of Chemistry and Biochemistry, San Diego State University, CA 92182-1030,USA
- Marine Biodiscovery Centre, Department of Chemistry, University of Aberdeen, Aberdeen AB24 3UE, UK
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13
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Xia X, Liu J, Jin L, Wang J, Darma AI, He C, Shakouri M, Hu Y, Yang J. Organic Matter Counteracts the Enhancement of Cr(III) Extractability during the Fe(II)-Catalyzed Ferrihydrite Transformation: A Nanoscale- and Molecular-Level Investigation. Environ Sci Technol 2023; 57:13496-13505. [PMID: 37638663 DOI: 10.1021/acs.est.3c03848] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/29/2023]
Abstract
Phase transformation of ferrihydrite to more stable Fe (oxyhydr)oxides, catalyzed by iron(II) [Fe(II)], significantly influences the mobility of heavy metals [e.g., chromium (Cr)] associated with ferrihydrite. However, the impact of organic matter (OM) on the behavior of Cr(III) in the Fe(II)-catalyzed transformation of ferrihydrite and the underlying mechanisms are unclear. Here, the Fe(II)-catalyzed transformation of the coprecipitates of Fe(III), Cr(III), or rice straw-derived OM was studied at the nanoscale and molecular levels using Fe and Cr K-edge X-ray absorption spectroscopy and spherical aberration corrected scanning transmission electron microscopy (Cs-STEM). Batch extraction results suggested that the OM counteracted the enhancement of Cr(III) extractability during the Fe(II)-catalyzed transformation. Cs-STEM and XAS analysis suggested that Cr(III) could be incorporated into the goethite formed by Fe(II)-catalyzed ferrihydrite transformation, which, however, was inhibited by the OM. Furthermore, Cs-STEM analysis also provided direct nanoscale level evidence that residual ferrihydrite could re-immobilize the released Cr(III) during the Fe(II)-catalyzed transformation process. These results highlighted that the decreased extractability of Cr(III) mainly resulted from the inhibition of OM on the Fe(II)-catalyzed transformation of ferrihydrite to secondary Fe (oxyhydr)oxides, which facilitates insightful understanding and prediction of the geochemical cycling of Cr in soils with active redox dynamics.
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Affiliation(s)
- Xing Xia
- College of Resources and Environment, Key Laboratory of Agri-food Safety of Anhui Province, Anhui Agricultural University, Hefei 230036, PR China
- Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Jin Liu
- College of Agronomy and Biotechnology, China Agricultural University, Beijing 100094, China
| | - Lin Jin
- Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Jian Wang
- Canadian Light Source Inc., University of Saskatchewan, Saskatoon SK S7N 2V3, Canada
| | - Aminu Inuwa Darma
- Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Chao He
- Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Mohsen Shakouri
- Canadian Light Source Inc., University of Saskatchewan, Saskatoon SK S7N 2V3, Canada
| | - Yongfeng Hu
- Canadian Light Source Inc., University of Saskatchewan, Saskatoon SK S7N 2V3, Canada
| | - Jianjun Yang
- State Key Laboratory of Efficient Utilization of Arid and Semi-arid Arable Land in Northern China (Institute of Agricultural Resources and Regional Planning, Chinese Academy of Agricultural Sciences), Beijing 100081, China
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14
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Sun J, Yang Y, Luo L. Pb speciation and elemental distribution in leeks by micro X-ray fluorescence and X-ray absorption near-edge structure. J Synchrotron Radiat 2023; 30:934-940. [PMID: 37615637 PMCID: PMC10481275 DOI: 10.1107/s1600577523006616] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/17/2023] [Accepted: 07/29/2023] [Indexed: 08/25/2023]
Abstract
Vegetables are crucial to a human diet as they supply the body with essential vitamins, minerals, etc. Heavy metals that accumulate in plants consequently enter the food chain and endanger people's health. Studying the spatial distribution and chemical forms of elements in plant/vegetable tissues is vital to comprehending the potential interactions between elements and detoxification mechanisms. In this study, leek plants and soil from vegetable gardens near lead-zinc mines were collected and cultivated with 500 mg L-1 PbNO3 solutions for three weeks. Micro X-ray fluorescence was used to map the distribution of Pb and other chemical elements in leek roots, and X-ray absorption near-edge spectroscopy was used to assess the Pb speciation in leek roots and leaves. These findings demonstrated that Pb, Cu, Mn, Cr, Ti and Fe were detected in the outer rings of the root's cross section, and high-intensity points were observed in the epidermis. Zn, K and Ca, on the other hand, were distributed throughout the root's cross section. Leek root and leaf contained significant quantities of lead phosphate and basic lead carbonate at more than 80%, followed by lead sulfide (19%) and lead stearate (11.1%). The capacity of leek roots to convert ambient lead into precipitated lead and fix it on the root epidermis and other inner surfaces is a key mechanism for reducing the toxic effects of Pb.
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Affiliation(s)
- Jianling Sun
- Beijing Municipal Research Institute of Eco-Environmental Protection, Beijing 100037, People’s Republic of China
- National Engineering Research Centre for Urban Environmental Pollution Control, Beijing 100037, People’s Republic of China
| | - Yongqiang Yang
- Beijing Municipal Research Institute of Eco-Environmental Protection, Beijing 100037, People’s Republic of China
- National Engineering Research Centre for Urban Environmental Pollution Control, Beijing 100037, People’s Republic of China
| | - Liqiang Luo
- National Research Center for Geoanalysis, Beijing 100037, People’s Republic of China
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15
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Zhuang S, Wang J. Efficient adsorptive removal of Co 2+ from aqueous solution using graphene oxide. Environ Sci Pollut Res Int 2023; 30:101433-101444. [PMID: 37651017 DOI: 10.1007/s11356-023-29374-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/24/2023] [Accepted: 08/13/2023] [Indexed: 09/01/2023]
Abstract
This study aimed to utilize synthesized graphene oxide (GO) for adsorptive removal of cobalt ions and investigate the adsorption mechanism using advanced techniques such as X-ray absorption spectra (XAFS). The GO was synthesized via an improved Hummers method, resulting in high surface area (93.7 m2/g) and abundant oxygen-containing functional groups. Various characterizations, including SEM, TEM, Raman, FT-IR, TG, potentiometric titrations, and N2 sorption-desorption measurements, were employed to characterize the GO. The adsorption behavior of GO towards Co2+ was investigated, and the results showed that the adsorption process followed a pseudo-second-order kinetic model and the Langmuir model, with a maximum sorption capacity of 93.7 mg/g. The adsorption process was chemisorption and endothermic, with GO showing adsorption selectivity order of Co2+ > Sr2+ > Cs+. Based on various characterizations such as X-ray absorption near-edge spectroscopy (XANES), extended X-ray absorption fine structure (EXAFS), FT-IR, and XPS, the sorption mechanism of Co2+ onto GO was discussed, with the results indicating that coordination and electrostatic interaction were the primary adsorption mechanisms, with oxygen-containing functional groups playing a vital role. The first coordinating atom for Co2+ was O, and the coordination environment was similar to that of cobalt acetate and CoO. Overall, this study provides comprehensive understanding of the adsorption behavior and mechanism of Co2+ onto GO, highlighting its potential as an effective adsorbent for removing nuclides from aqueous solution.
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Affiliation(s)
- Shuting Zhuang
- School of Environment & Natural Resources, Renmin University of China, Beijing, 100872, People's Republic of China
- Laboratory of Environmental Technology, INET, Tsinghua University, Beijing, 100084, People's Republic of China
| | - Jianlong Wang
- Laboratory of Environmental Technology, INET, Tsinghua University, Beijing, 100084, People's Republic of China.
- Beijing Key Laboratory of Radioactive Waste Treatment, INET, Tsinghua University, Beijing, 100084, People's Republic of China.
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16
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Vermeulen M, Webb SM, Russick S, McGeachy AC, Muratore K, Walton MS. Identification, transformations and mobility of hazardous arsenic-based pigments on 19th century bookbindings in accessible library collections. J Hazard Mater 2023; 454:131453. [PMID: 37116330 DOI: 10.1016/j.jhazmat.2023.131453] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/03/2023] [Revised: 04/18/2023] [Accepted: 04/18/2023] [Indexed: 05/19/2023]
Abstract
This study focused on the non-destructive characterization of potentially hazardous Victorian-era books found in the Northwestern University Libraries. XRF, Raman and FTIR were used to identify and isolate hazardous books containing As-based pigments. These techniques also permitted, on selected books, to characterize the pigment as being Emerald green. However, none allowed for the identification of equally hazardous degradation products or potential transfer to adjacent books. These analytical gaps create limits in thoroughly identifying the level of risks associated with these books for library users and hampered the application of effective risk mitigation measures. Such limitations were overcome with synchrotron radiation (SR) techniques. Through SR-XRF, Cu/As distributions were mapped across covers and spines of green and neighboring books, whereas SR-X-ray absorption near edge structure (SR-XANES) was used to characterize the As oxidation state, leading to the identification of arsenates as degradation products. Besides successfully identifying hazardous books, this study demonstrated that hazards extend beyond As-containing green books to innocuous, long-standing neighboring books and non-colored pages due to migration and transfer of pigment and degradation products. Aside from helping to implement workplace health and safety measures, this study also informs how other libraries can identify and characterize potentially hazardous items in their collections.
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Affiliation(s)
- Marc Vermeulen
- Northwestern University / Art Institute of Chicago Center for Scientific Studies in the Arts (NU-ACCESS), 2145 Sheridan Road, Evanston, IL 60208, USA.
| | - Samuel M Webb
- Stanford Synchrotron Radiation Lightsource, SLAC National Accelerator Laboratory, 2575 Sand Hill Rd., Menlo Park, CA 94025, USA
| | - Susan Russick
- Northwestern University Libraries, 1970 Campus Drive, Evanston, IL 60208, USA
| | - Alicia C McGeachy
- Northwestern University / Art Institute of Chicago Center for Scientific Studies in the Arts (NU-ACCESS), 2145 Sheridan Road, Evanston, IL 60208, USA
| | - Karissa Muratore
- Northwestern University Libraries, 1970 Campus Drive, Evanston, IL 60208, USA
| | - Marc S Walton
- Northwestern University / Art Institute of Chicago Center for Scientific Studies in the Arts (NU-ACCESS), 2145 Sheridan Road, Evanston, IL 60208, USA
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17
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Wang Z, Wen Y, Gou W, Ji J, Li W. Zn isotope signatures in soil FeMn nodules with karst high geochemical background. Sci Total Environ 2023; 882:163365. [PMID: 37031939 DOI: 10.1016/j.scitotenv.2023.163365] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/26/2023] [Revised: 03/24/2023] [Accepted: 04/04/2023] [Indexed: 06/01/2023]
Abstract
Zn isotope has the potential to be used as an environmental tracer, due to its role in fingerprinting specific sources and processes. However, few studies have focused on Zn isotope system in terrestrial ferromanganese (FeMn) nodules, which is important on understanding the behaviors of Zn in soils. In this study, we analyse the isotopic composition in soil FeMn nodules and surrounding materials from a typical karst region in Guangxi Province, southwestern China and use advanced synchrotron-based methods to characterize Zn speciation. The Zn isotope compositions of the FeMn nodules range from 0.09 to 0.66 ‰, with an average value of 0.24 ‰. Pb isotope fingerprinting reveals that the major material sources contributing to the FeMn nodules are the surrounding soil (δ66Zn: ~0.36 ‰) and partly weathered carbonate bedrock (δ66Zn: ~0.58 ‰), which contain heavier Zn isotopes than the nodules. Synchrotron-based X-ray fluorescence (μ-SXRF) shows that Zn is well correlated with both Fe and Mn. X-ray absorption near edge spectroscopy (XANES) measurements reveal that Zn is associated with both goethite and birnessite phases, with goethite-sorbed Zn accounting for ~76 % of the total Zn and birnessite-sorbed Zn accounting for ~24 %. By combining these new results, the isotopically light Zn in the FeMn nodules compared to their sources can be explained by equilibrium sorption of Zn on goethite and birnessite, during which light Zn is preferentially sorbed. Our study provides important new data on Zn isotope compositions in terrestrial soil FeMn nodules and constrains associated mechanisms, and have implications for using Zn isotopes as environmental tracers.
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Affiliation(s)
- Zhao Wang
- Key Laboratory of Surficial Geochemistry, Ministry of Education, School of Earth Sciences and Engineering, Nanjing University, Nanjing 210023, China
| | - Yubo Wen
- School of Geographic Science, Nantong University, Nantong 226019, China
| | - Wenxian Gou
- State Key Laboratory of Geohazard Prevention and Geoenvironment Protection, Chengdu University of Technology, Chengdu, Sichuan 610059, China
| | - Junfeng Ji
- Key Laboratory of Surficial Geochemistry, Ministry of Education, School of Earth Sciences and Engineering, Nanjing University, Nanjing 210023, China; Frontiers Science Center for Critical Earth Material Cycling (FSC-CEMaC), Nanjing University, Nanjing, Jiangsu 210023, China
| | - Wei Li
- Key Laboratory of Surficial Geochemistry, Ministry of Education, School of Earth Sciences and Engineering, Nanjing University, Nanjing 210023, China; Frontiers Science Center for Critical Earth Material Cycling (FSC-CEMaC), Nanjing University, Nanjing, Jiangsu 210023, China.
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18
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Hermes AL, Logan MN, Poulin BA, McKenna AM, Dawson TE, Borch T, Hinckley ELS. Agricultural Sulfur Applications Alter the Quantity and Composition of Dissolved Organic Matter from Field-to-Watershed Scales. Environ Sci Technol 2023. [PMID: 37382932 DOI: 10.1021/acs.est.3c01347] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 06/30/2023]
Abstract
Over the past several decades, agricultural sulfur (S) use has dramatically increased. Excess S in the environment can cause several biogeochemical and ecologic consequences, including methylmercury production. This study investigated agriculturally associated changes to organic S─the most dominant form of S within soils─from field-to-watershed scales. Using a novel complementary suite of analytical methods, we combined Fourier transform ion cyclotron resonance mass spectrometry, δ34S-DOS, and S X-ray absorption spectroscopy to characterize dissolved organic S (DOS) in soil porewater and surface water samples from vineyard agriculture (S addition) and forest/grassland areas (no S addition) within the Napa River watershed (California, U.S.). Vineyard soil porewater dissolved organic matter samples had two-fold higher S content compared to forest/grasslands and had unique CHOS2 chemical formulas─the latter also found in tributary and Napa River surface water. The isotopic difference between δ34S-DOS and δ34S-SO42- values provided insights into the likely dominant microbial S processes by land use/land cover (LULC), whereas the S oxidation state did not strongly differ by LULC. The results add to our understanding of the modern S cycle and point to upland agricultural areas as S sources with the potential for rapid S transformations in downgradient environments.
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Affiliation(s)
- Anna L Hermes
- Department of Environmental Studies, University of Colorado Boulder, Boulder, Colorado 80303, United States
- Institute of Arctic and Alpine Research, University of Colorado Boulder, Boulder, Colorado 80303, United States
| | - Merritt N Logan
- Department of Chemistry, Colorado State University, Fort Collins, Colorado 80523, United States
| | - Brett A Poulin
- Department of Environmental Toxicology, University of California Davis, Davis, California 95616, United States
| | - Amy M McKenna
- National High Magnetic Field Laboratory, Florida State University, Tallahassee, Florida 32310, United States
- Department of Soil and Crop Sciences, Colorado State University, Fort Collins, Colorado 80523, United States
| | - Todd E Dawson
- Department of Integrative Biology, University of California Berkeley, Berkeley, California 94720, United States
- Department of Environmental Science, Policy & Management, University of California Berkeley, Berkeley, California 94720, United States
- Center for Stable Isotope Biogeochemistry, University of California Berkeley, Berkeley, California 94720, United States
| | - Thomas Borch
- Department of Chemistry, Colorado State University, Fort Collins, Colorado 80523, United States
- Department of Soil and Crop Sciences, Colorado State University, Fort Collins, Colorado 80523, United States
| | - Eve-Lyn S Hinckley
- Department of Environmental Studies, University of Colorado Boulder, Boulder, Colorado 80303, United States
- Institute of Arctic and Alpine Research, University of Colorado Boulder, Boulder, Colorado 80303, United States
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19
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Hashimoto Y, Sonoda K, Nagao Y, Wang SL. Soluble soil Pb minimized by thermal transformation to Pb-bearing feldspar. J Hazard Mater 2023; 457:131729. [PMID: 37269560 DOI: 10.1016/j.jhazmat.2023.131729] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/30/2023] [Revised: 05/15/2023] [Accepted: 05/27/2023] [Indexed: 06/05/2023]
Abstract
Thermal transformation is an effective remediation measure to stabilize soil Pb and other heavy metals via transformation into less soluble compounds. This study aimed to determine the solubility of Pb in soils subjected to heating at a range of temperatures (100-900 °C) in relation to the changes in Pb speciation using XAFS spectroscopy. Lead solubility in the contaminated soils after thermal treatment corresponded well to the chemical species of Pb present. As the temperature was increased to 300 °C, cerussite and Pb associated with humus started to decompose in the soils. As the temperature was further increased to 900 °C, the amount of water and HCl extractable Pb decreased significantly from the soils, whereas Pb-bearing feldspar started to occur, accounting for nearly 70% of the soil Pb. During thermal treatment, Pb species in the soils were little affected by Fe oxides that showed a significant phase transformation into hematite. Our study proposes the following underlying mechanisms for Pb immobilization in thermally treated soils: i) thermally labile Pb species such as PbCO3 and Pb associated with humus start to decompose at temperatures around 300 °C, ii) aluminosilicates with crystalline and poorly ordered structures undergo thermal decomposition at temperatures around 400 °C, iii) liberating Pb in the soil is then associated with a Si and Al rich liquid derived from thermally decomposed aluminosilicates at higher temperatures, and iv) the formation of Pb-feldspar like minerals is enhanced at 900 °C.
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Affiliation(s)
| | - Kento Sonoda
- Tokyo University of Agriculture and Technology, Japan
| | - Yuki Nagao
- Tokyo University of Agriculture and Technology, Japan
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20
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Zhao YG, Wang EJ, Zheng JJ, Guan F, Lu Y. Modeling and spectroscopic investigation of U(VI) removal on porous amidoxime-functionalized metal organic framework derived from macromolecular carbohydrate. Int J Biol Macromol 2023:125043. [PMID: 37224909 DOI: 10.1016/j.ijbiomac.2023.125043] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2023] [Revised: 05/18/2023] [Accepted: 05/21/2023] [Indexed: 05/26/2023]
Abstract
The investigation of interaction mechanism of U(VI) selective removal on amidoxime-functionalized metal organic framework (i.e., UiO-66(Zr)-AO) derived from macromolecular carbohydrate is conducive to apply metal organic frameworks in actual environmental remediation. The batch experiments showed that UiO-66(Zr)-AO displayed the fast removal rate (equilibrium time of 0.5 h), high adsorption capacity (384.6 mg/g), excellent regeneration performance (<10 % decrease after three cycles) towards U(VI) removal due to the unprecedented chemical stability, large surface area and simple fabrication. U(VI) removal at different pH can be satisfactorily fitted by diffuse layer modeling with cation exchange at low pH and an inner-sphere surface complexation at high pH. The inner-sphere surface complexation was further demonstrated by X-ray absorption near edge structure (XANES) and extended X-ray absorption fine structure (EXAFS) analysis. These findings revealed that UiO-66(Zr)-AO can be an effective adsorbent to remove the radionuclides from aqueous solution, which is crucial for recycling of uranium resource and decreasing the uranium harm to the environment.
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Affiliation(s)
- Yong-Gang Zhao
- Key Laboratory of Pollution Exposure and Health Intervention of Zhejiang Province, College of Biological and Environmental Engineering, Zhejiang Shuren University, Hangzhou 310015, China
| | - En-Jun Wang
- Key Laboratory of Pollution Exposure and Health Intervention of Zhejiang Province, College of Biological and Environmental Engineering, Zhejiang Shuren University, Hangzhou 310015, China
| | - Jun-Jie Zheng
- Key Laboratory of Pollution Exposure and Health Intervention of Zhejiang Province, College of Biological and Environmental Engineering, Zhejiang Shuren University, Hangzhou 310015, China
| | - Fachun Guan
- Institute of Rural Energy and Ecology, Jilin Academy of Agricultural Sciences, Changchun 130033, China
| | - Yin Lu
- Key Laboratory of Pollution Exposure and Health Intervention of Zhejiang Province, College of Biological and Environmental Engineering, Zhejiang Shuren University, Hangzhou 310015, China.
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21
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Fan S, Lai B, Elzinga EJ, Ingall ED, Morton PL, Gao Y. Spatial variability of aerosol iron mineralogy and oxidation states over the Arctic Ocean. Sci Total Environ 2023; 889:164301. [PMID: 37216989 DOI: 10.1016/j.scitotenv.2023.164301] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/27/2023] [Revised: 05/06/2023] [Accepted: 05/16/2023] [Indexed: 05/24/2023]
Abstract
The mineralogy and oxidation state of aerosol iron (Fe) play important roles in controlling aerosol Fe solubility and consequent bioavailability in seawater. In this study, the spatial variability of Fe mineralogy and oxidation states in aerosols collected during the US GEOTRACES Western Arctic cruise (GN01) were determined using synchrotron-based X-ray absorption near edge structure (XANES) spectroscopy. Both Fe(II) minerals (biotite, ilmenite) and Fe(III) minerals (ferrihydrite, hematite, Fe(III) phosphate) were found in these samples. However, aerosol Fe mineralogy and solubility observed during this cruise varied spatially and can be grouped into three clusters based on the air masses that affected aerosols collected in different regions: (1) biotite-enriched particles (87 % biotite, 13 % hematite) with the air masses passing over Alaska, showing relatively low Fe solubility (4.0 ± 1.7 %); (2) ferrihydrite-enriched particles (82 % ferrihydrite, 18 % ilmenite) collected in the remote Arctic air, showing relatively high Fe solubility (9.6 ± 3.3 %); (3) the fresh dust derived from North America and Siberia, primarily dominated by hematite (41 % hematite, 25 % Fe(III) phosphate, 20 % biotite, 13 % ferrihydrite), showing relatively low Fe solubility (5.1 ± 3.5). A significant positive correlation was found between Fe oxidation state and Fe fractional solubility, suggesting that long-range transport could modify iron (hydr) oxide such as ferrihydrite through atmospheric processing, influencing aerosol Fe solubility and consequently Fe bioavailability in the remote Arctic Ocean.
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Affiliation(s)
- Songyun Fan
- Department of Earth and Environmental Sciences, Rutgers University, Newark, NJ 07102, USA
| | - Barry Lai
- Advanced Photon Source, Argonne National Laboratory, Argonne, IL 60439, USA
| | - Evert J Elzinga
- Department of Earth and Environmental Sciences, Rutgers University, Newark, NJ 07102, USA
| | - Ellery D Ingall
- School of Earth and Atmospheric Sciences, Georgia Institute of Technology, Atlanta, GA 30332, USA
| | - Peter L Morton
- National High Magnetic Field Laboratory, Florida State University, Tallahassee, FL 32310, USA; Geochemistry Group, Florida State University, Tallahassee, FL 32310, USA; The Department of Earth, Ocean and Atmospheric Science, Florida State University, Tallahassee, FL 32310, USA
| | - Yuan Gao
- Department of Earth and Environmental Sciences, Rutgers University, Newark, NJ 07102, USA.
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22
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Medas D, Meneghini C, Pusceddu C, Carlomagno I, Aquilanti G, Dore E, Murgia V, Podda F, Rimondi V, Vacca S, Wanty RB, De Giudici G. Plant-minerals-water interactions: An investigation on Juncus acutus exposed to different Zn sources. Sci Total Environ 2023; 870:161931. [PMID: 36736402 DOI: 10.1016/j.scitotenv.2023.161931] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/17/2022] [Revised: 01/27/2023] [Accepted: 01/27/2023] [Indexed: 06/18/2023]
Abstract
Juncus acutus has been proposed as a suitable species for the design of phytoremediation plans. This research aimed to investigate the role played by rhizosphere minerals and water composition on Zn transformations and dynamics in the rhizosphere-plant system of J. acutus exposed to different Zn sources. Rhizobox experiments were conducted using three different growing substrates (Zn from 137 to 20,400 mg/kg), and two irrigation lines (Zn 0.05 and 180 mg/l). The plant growth was affected by the substrate type, whereas the Zn content in the water did not significantly influence the plant height for a specific substrate. J. acutus accumulated Zn mainly in roots (up to 10,000 mg/kg dw); the metal supply by the water led to variable increases in the total Zn concentration in the vegetal organs, and different Zn distributions both controlled by the rhizosphere mineral composition. Different Zn complexation mechanisms were observed, mainly driven by cysteine and citrate compounds, whose amount increased linearly with Zn content in water, but differently for each of the investigated systems. Our study contributes to gain a more complete picture of the Zn pathway in the rhizosphere-plant system of J. acutus. We demonstrated that this vegetal species is not only capable of developing site-specific tolerance mechanisms, but it is also capable to differently modulate Zn transformation when Zn is additionally supplied by watering. These findings are necessary for predicting the fate of Zn during phytoremediation of sites characterized by specific mineralogical properties and subject to water chemical variations.
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Affiliation(s)
- Daniela Medas
- Department of Chemical and Geological Science, University of Cagliari, Cagliari, Italy.
| | - Carlo Meneghini
- Department of Sciences, University of Roma Tre, Rome, Italy.
| | - Claudia Pusceddu
- Department of Chemical and Geological Science, University of Cagliari, Cagliari, Italy
| | | | | | - Elisabetta Dore
- Department of Chemical and Geological Science, University of Cagliari, Cagliari, Italy.
| | | | - Francesca Podda
- Department of Chemical and Geological Science, University of Cagliari, Cagliari, Italy.
| | - Valentina Rimondi
- Department of Earth Sciences, University of Florence, Florence, Italy; CNR-Institute of Geosciences and Earth Resources, Florence, Italy.
| | - Salvatore Vacca
- Department of Chemical and Geological Science, University of Cagliari, Cagliari, Italy.
| | - Richard B Wanty
- Colorado School of Mines, Department of Geology and Geological Engineering, Golden, CO 80401, USA.
| | - Giovanni De Giudici
- Department of Chemical and Geological Science, University of Cagliari, Cagliari, Italy.
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23
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Klein P, Gunkel-Grillon P, Juillot F, Feder F, Kaplan H, Thery G, Pain A, Bloc M, Léopold A. Behavior of trace metals during composting of mixed sewage sludge and tropical green waste: a combined EDTA kinetic and BCR sequential extraction study in New Caledonia. Environ Monit Assess 2023; 195:589. [PMID: 37074478 DOI: 10.1007/s10661-023-11151-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/11/2022] [Accepted: 03/20/2023] [Indexed: 05/03/2023]
Abstract
The aim of the study was to assess the impact of composting on the release dynamics and partitioning of geogenic nickel (Ni), chromium (Cr) and anthropogenic copper (Cu) and zinc (Zn) in a mixture of sewage sludge and green waste in New Caledonia. In contrast to Cu and Zn, total concentrations of Ni and Cr were very high, tenfold the French regulation, due to their sourcing from Ni and Cr enriched ultramafic soils. The novel method used to assess the behavior of trace metals during composting involved combining EDTA kinetic extraction and BCR sequential extraction. BCR extraction revealed marked mobility of Cu and Zn: more than 30% of the total concentration of these trace metals was found in the mobile fractions (F1 + F2) whereas Ni and Cr were mainly found in the residual fraction (F4). Composting increased the proportion of the stable fractions (F3 + F4) of all four trace metals studied. Interestingly, only EDTA kinetic extraction was able to identify the increase in Cr mobility during composting, Cr mobility being driven by the more labile pool (Q1). However, the total mobilizable pool (Q1 + Q2) of Cr remained very low, < 1% of total Cr content. Among the four trace metals studied, only Ni showed significant mobility, the (Q1 + Q2) pool represented almost half the value given in the regulatory guidelines. This suggests possible environmental and ecological risks associated with spreading our type of compost that require further investigation. Beyond New Caledonia, our results also raise the question of the risks in other Ni-rich soils worldwide.
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Affiliation(s)
- Perrine Klein
- IAC Institut Agronomique Néo-Calédonien, Équipe SolVeg, 98848, Noumea, New Caledonia, France.
- Institut Des Sciences Exactes Et Appliquées, UNC Université de La Nouvelle-Calédonie, BP R4, 98851, Noumea Cedex, New Caledonia, France.
| | - Peggy Gunkel-Grillon
- Institut Des Sciences Exactes Et Appliquées, UNC Université de La Nouvelle-Calédonie, BP R4, 98851, Noumea Cedex, New Caledonia, France
| | - Farid Juillot
- IRD Institut de Recherche Pour Le Développement, ERL 206 IMPMC, 98848, Noumea, New Caledonia, France
- Institut de Minéralogie, de Physique Des Matériaux Et de Cosmochimie (IMPMC), Sorbonne Université, UMR 7590 CNRS, MNHN, IRD, 75252Cedex 5, Paris, France
| | - Frédéric Feder
- Cirad, UPR Recyclage Et Risque, 34398, Montpellier, France
- Recyclage Et Risque, Univ Montpellier, Cirad, 34398, Montpellier, France
| | - Hélène Kaplan
- IAC Institut Agronomique Néo-Calédonien, Équipe SolVeg, 98848, Noumea, New Caledonia, France
| | - Gaël Thery
- GEOPS UMR 8148 CNRS Université Paris-Saclay, GEOPS, Géosciences Paris-Saclay, Orsay, 91400, France
| | - Anthony Pain
- IAC Institut Agronomique Néo-Calédonien, Équipe SolVeg, 98848, Noumea, New Caledonia, France
| | - Meryle Bloc
- CDE Calédonienne Des Eaux, 98845, Noumea Cedex, New Caledonia, France
| | - Audrey Léopold
- IAC Institut Agronomique Néo-Calédonien, Équipe SolVeg, 98848, Noumea, New Caledonia, France.
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24
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Xu W, Hanikel N, Lomachenko KA, Atzori C, Lund A, Lyu H, Zhou Z, Angell CA, Yaghi OM. High-Porosity Metal-Organic Framework Glasses. Angew Chem Int Ed Engl 2023; 62:e202300003. [PMID: 36791229 PMCID: PMC10503658 DOI: 10.1002/anie.202300003] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2023] [Revised: 02/15/2023] [Accepted: 02/15/2023] [Indexed: 02/17/2023]
Abstract
We report a synthetic strategy to link titanium-oxo (Ti-oxo) clusters into metal-organic framework (MOF) glasses with high porosity though the carboxylate linkage. A new series of MOF glasses was synthesized by evaporation of solution containing Ti-oxo clusters Ti16 O16 (OEt)32 , linkers, and m-cresol. The formation of carboxylate linkages between the Ti-oxo clusters and the carboxylate linkers was confirmed by Fourier-transform infrared (FT-IR) spectroscopy. The structural integrity of the Ti-oxo clusters within the glasses was evidenced by both X-ray absorption near edge structure (XANES) and 17 O magic-angle spinning (MAS) NMR. After ligand exchange and activation, the fumarate-linked MOF glass, termed Ti-Fum, showed a N2 Brunauer-Emmett-Teller (BET) surface areas of 923 m2 g-1 , nearly three times as high as the phenolate-linked MOF glass with the highest BET surface area prior to this report.
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Affiliation(s)
- Wentao Xu
- Department of Chemistry and Kavli Energy Nanoscience Institute, University of California, Berkeley, Berkeley, CA 94720, USA
| | - Nikita Hanikel
- Department of Chemistry and Kavli Energy Nanoscience Institute, University of California, Berkeley, Berkeley, CA 94720, USA
| | - Kirill A Lomachenko
- European Synchrotron Radiation Facility, 71 Avenue des Martyrs, CS 40220, 38043, Grenoble Cedex 9, France
| | - Cesare Atzori
- European Synchrotron Radiation Facility, 71 Avenue des Martyrs, CS 40220, 38043, Grenoble Cedex 9, France
| | - Alicia Lund
- Department of Chemistry, University of California, Berkeley, Berkeley, CA 94720, USA
| | - Hao Lyu
- Department of Chemistry and Kavli Energy Nanoscience Institute, University of California, Berkeley, Berkeley, CA 94720, USA
| | - Zihui Zhou
- Department of Chemistry and Kavli Energy Nanoscience Institute, University of California, Berkeley, Berkeley, CA 94720, USA
| | - C Austen Angell
- School of Molecular Sciences, Arizona State University, Tempe, AZ 85287, USA
| | - Omar M Yaghi
- Department of Chemistry, Kavli Energy Nanoscience Institute, and Bakar Institute of Digital Materials for the Planet, Division of Computing, Data Science, and Society, University of California, Berkeley, Berkeley, CA 94720, USA
- KACST-UC Berkeley Center of Excellence for Nanomaterials for Clean Energy Applications, King Abdulaziz City for Science and Technology, Riyadh, 11442, Saudi Arabia
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25
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Manna I, Sahoo S, Bandyopadhyay M. Dynamic changes in global methylation and plant cell death mechanism in response to NiO nanoparticles. Planta 2023; 257:93. [PMID: 37017788 DOI: 10.1007/s00425-023-04127-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/20/2022] [Accepted: 03/29/2023] [Indexed: 06/19/2023]
Abstract
This report is a first comprehensive work on the potential of engineered nickel oxide nanoparticles affecting the epigenome and modulating global methylation leading to retention of transgenerational footprints. Nickel oxide nanoparticles (NiO-NPs) are known to instigate extensive phenotypic and physiological damage to plants. In the present work, it was shown that exposure to increasing concentrations of NiO-NP-induced cell death cascades in model systems, Allium cepa and tobacco BY-2 cells. NiO-NP also generated variation in global CpG methylation; its transgenerational transmission was shown in affected cells. Plant tissues exposed to NiO-NP showed progressive replacement of essential cations, like Fe and Mg, as seen in XANES and ICP-OES data, providing earliest signs of disturbed ionic homeostasis. Fluorescent staining based confocal microscopy confirmed upsurge of H2O2 and nitric oxide after NiO-NP exposure. A NiO-NP concentration gradient-based switching-on of the cell death cascades was observed when autophagosomes were seen in samples exposed to lower and median concentrations of NiO-NP (10-125 mg L-1). The apoptotic cell death marker, caspase-3 like protein, was noted in the median to higher doses (50-500 mg L-1), and leakage of lactate dehydrogenase marking necrotic cell death was observed in samples exposed to the highest doses (125-500 mg L-1) of NiO-NP. Concomitant increase of DNA hypermethylation (quantified by ELISA-based assay) and genomic DNA damage (evaluated through Comet-based analyses) was recorded at higher doses of NiO-NP. MSAP profiles confirmed that global methylation changes incurring in the parental generation upon NiO-NP exposure were transmitted through the two subsequent generations of BY-2 cells which was supported by data from A. cepa, too. Thus, it was evident that NiO-NP exposure incited DNA hypermethylation, as an aftermath of oxidative burst, and led to induction of autophagy, apoptotic and necrotic cell death pathways. Global methylation changes induced by NiO-NP exposure can be transmitted through subsequent cell generations.
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Affiliation(s)
- Indrani Manna
- Plant Molecular Cytogenetics Laboratory, Department of Botany, Center of Advanced Study, University of Calcutta, 35 Ballygunge Circular Road, Kolkata, India
| | - Saikat Sahoo
- Plant Molecular Cytogenetics Laboratory, Department of Botany, Center of Advanced Study, University of Calcutta, 35 Ballygunge Circular Road, Kolkata, India
- Department of Botany, Krishna Chandra College, Birbhum, India
| | - Maumita Bandyopadhyay
- Plant Molecular Cytogenetics Laboratory, Department of Botany, Center of Advanced Study, University of Calcutta, 35 Ballygunge Circular Road, Kolkata, India.
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26
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Deans I, Stewart DI, Jones J, Kam J, Mishra B. Uptake and speciation of Zn and Pb by Miscanthus grown in contaminated soils. J Hazard Mater 2023; 445:129899. [PMID: 36493643 DOI: 10.1016/j.jhazmat.2022.129899] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/01/2022] [Revised: 08/22/2022] [Accepted: 08/31/2022] [Indexed: 06/17/2023]
Abstract
The uptake by and distribution of Zn and Pb within a novel seed-based Miscanthus hybrid grown in contaminated soil was assessed. Results from juvenile plants in a pot-trial was compared with data for mature biomass of the same species harvested during a field-trial. Both Zn and Pb uptake by juvenile plants were observed to increase in proportion to the soil concentrations. Both Zn and Pb accumulation differed between leaf and stem structures, and both were different in the mature biomass compared with juvenile plants. Analysis of X-Ray Absorption Fine Structures (XAFS) revealed different Zn speciation in stems and leaves, and differences in Zn speciation with plant maturity. Sulfur ligands consistent with the presence of cysteine rich metallothioneins (MT) and phytochelatin (PC) complexes were the dominant Zn species in juvenile plant leaves, together with octahedral O/N species typified by Zn-malate. Sulfur ligands were also prevalent in stems from juvenile plants, but predominant O/N speciation shifted towards tetrahedral coordination. In contrast, tetrahedral Zn coordination with O/N species predominated in the mature biomass crop. The XAFS spectra for the mature biomass were consistent with Zn being retained within cell walls as pectin and/or phosphate complexes.
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Affiliation(s)
- Innes Deans
- School of Chemical and Process Engineering, University of Leeds, Leeds, United Kingdom
| | - Douglas I Stewart
- School of Civil Engineering, University of Leeds, Leeds, United Kingdom
| | - Jenny Jones
- School of Chemical and Process Engineering, University of Leeds, Leeds, United Kingdom
| | - Jason Kam
- Terravesta Ltd, Lincoln, United Kingdom
| | - Bhoopesh Mishra
- School of Chemical and Process Engineering, University of Leeds, Leeds, United Kingdom; Physics Department, Illinois Institute of Technology, Chicago, United States.
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27
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Liu P, Schleusener A, Zieger G, Bochmann A, van Spronsen MA, Sivakov V. Nanostructured Silicon Matrix for Materials Engineering. Small 2023; 19:e2206318. [PMID: 36642786 DOI: 10.1002/smll.202206318] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/14/2022] [Revised: 12/20/2022] [Indexed: 06/17/2023]
Abstract
Tin-containing layers with different degrees of oxidation are uniformly distributed along the length of silicon nanowires formed by a top-down method by applying metalorganic chemical vapor deposition. The electronic and atomic structure of the obtained layers is investigated by applying nondestructive surface-sensitive X-ray absorption near edge spectroscopy using synchrotron radiation. The results demonstrated, for the first time, a distribution effect of the tin-containing phases in the nanostructured silicon matrix compared to the results obtained for planar structures at the same deposition temperatures. The amount and distribution of tin-containing phases can be effectively varied and controlled by adjusting the geometric parameters (pore diameter and length) of the initial matrix of nanostructured silicon. Due to the occurrence of intense interactions between precursor molecules and decomposition by-products in the nanocapillary, as a consequence of random thermal motion of molecules in the nanocapillary, which leads to additional kinetic energy and formation of reducing agents, resulting in effective reduction of tin-based compounds to a metallic tin state for molecules with the highest penetration depth in the nanostructured silicon matrix. This effect will enable clear control of the phase distributions of functional materials in 3D matrices for a wide range of applications.
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Affiliation(s)
- Poting Liu
- Leibniz Institute of Photonic Technology, Albert-Einstein Str. 9, 07745, Jena, Germany
- Friedrich Schiller University Jena, Helmholtzweg 4, 07743, Jena, Germany
| | - Alexander Schleusener
- Leibniz Institute of Photonic Technology, Albert-Einstein Str. 9, 07745, Jena, Germany
- Friedrich Schiller University Jena, Helmholtzweg 4, 07743, Jena, Germany
- Istituto Italiano di Tecnologia, Via Morego 30, Genova, 16163, Italy
| | - Gabriel Zieger
- Leibniz Institute of Photonic Technology, Albert-Einstein Str. 9, 07745, Jena, Germany
| | - Arne Bochmann
- Ernst Abbe University of Applied Science, Carl-Zeiss-Promenade 2, 07745, Jena, Germany
| | | | - Vladimir Sivakov
- Leibniz Institute of Photonic Technology, Albert-Einstein Str. 9, 07745, Jena, Germany
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28
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Tseng IH, Yang YH, Chen YT, Hsu LC. Tailoring Copper Chemical Status and Hydrophobicity of Biomimetic Photocatalytic Films for Carbon Dioxide Conversion. ACS Appl Mater Interfaces 2023; 15:5038-5048. [PMID: 36629448 DOI: 10.1021/acsami.2c15868] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
Naturally hierarchical nanostructures of leaves were successfully replicated on thermally stable polyimide (PI) films to obtain biomimetic substrates for the grafting of p-type semiconductor, cuprous oxide (Cu2O). The chemical states of Cu2O and the hydrophobicity on the photocatalytic films were tunable by altering the process time of ion-exchange or chemical reduction. The obtained photocatalytic films showed activity to photocatalytically convert carbon dioxide (CO2) into carbon monoxide (CO) under visible light illumination. The yield of CO was initially improved with the increasing hydrophobicity on the film but then leveled off. The photocatalytic activity could be further improved by tailoring the amount or composition of copper oxides. An optimum ratio of Cu2O and moderate basicity on the surface, as well as more metallic Cu from the bulk, will achieve more efficient interfacial charge transfer, resulting in a higher CO production rate.
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Affiliation(s)
- I-Hsiang Tseng
- Department of Chemical Engineering, Feng Chia University, Taichung407102, Taiwan
| | - Yu-Hsuian Yang
- Department of Chemical Engineering, Feng Chia University, Taichung407102, Taiwan
| | - Yi-Ting Chen
- Department of Chemical Engineering, Feng Chia University, Taichung407102, Taiwan
| | - Liang-Ching Hsu
- National Synchrotron Radiation Research Center, Hsinchu300092, Taiwan
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29
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Li W, Yamada S, Hashimoto T, Okumura T, Hayakawa R, Nitta K, Sekizawa O, Suga H, Uruga T, Ichinohe Y, Sato T, Toyama Y, Noda H, Isobe T, Takatori S, Hiraki T, Tatsuno H, Kominato N, Ito M, Sakai Y, Omamiuda H, Yamaguchi A, Yomogida T, Miura H, Nagasawa M, Okada S, Takahashi Y. High-sensitive XANES analysis at Ce L 2-edge for Ce in bauxites using transition-edge sensors: Implications for Ti-rich geological samples. Anal Chim Acta 2023; 1240:340755. [PMID: 36641142 DOI: 10.1016/j.aca.2022.340755] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2022] [Revised: 12/25/2022] [Accepted: 12/28/2022] [Indexed: 12/31/2022]
Abstract
Accurate determination of cerium (Ce) valence state is important for interpreting the Ce anomaly in geological archives for (paleo)redox reconstruction. However, the routine application of Ce L3-edge X-ray absorption near-edge structure (XANES) spectroscopy for detecting trace Ce in geological samples can often be restricted by coexisting titanium (Ti) due to the proximity of their fluorescence emission lines. Therefore, the signal-to-noise ratio of Ce L3-edge XANES spectra may not be sufficiently high for high-quality spectroscopic analysis. This study introduces a semi-quantitative approach appropriate for Ti-rich, Ce-dilute geological materials by synchrotron-based X-ray measurement at the Ce L2-edge. First, the results confirm that Ce L2-edge XANES spectra are able to avoid overlapping Ti Kβ emissions and provide more reliable information on the Ce valence state in Ti-rich materials relative to L3-edge XANES. Moreover, the application of transition-edge sensor (TES) could reach the higher sensitivity with better energy resolution than conventional silicon drift detector (SDD) to detect fluorescence X-ray (Ce Lβ1). The investigation on bauxites developed from the Columbia River Basalts shows that combining Ce L2-edge XANES and TES allows for resolving weak Ce fluorescence lines at the L2-edge from Ti-rich, Ce-dilute samples (Ti/Ce mass ratio up to ∼6000, tens of ppm Ce). The outcome emphasizes the practical possibility of investigating Ce redox state in Ti-rich geological samples.
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Affiliation(s)
- Wenshuai Li
- Department of Earth and Planetary Science, The University of Tokyo, Hongo 7-3-1, Bunkyo, Tokyo, 113-0033, Japan.
| | - Shinya Yamada
- Department of Physics, Rikkyo University, Toshima-Ku, Tokyo, 171-8501, Japan
| | - Tadashi Hashimoto
- Advanced Science Research Center (ASRC), Japan Atomic Energy Agency (JAEA), Tokai, 319-1184, Japan
| | - Takuma Okumura
- Department of Chemistry, Tokyo Metropolitan University, Hachioji, Tokyo, 192-0397, Japan
| | - Ryota Hayakawa
- Department of Physics, Rikkyo University, Toshima-Ku, Tokyo, 171-8501, Japan
| | - Kiyofumi Nitta
- Center for Synchrotron Radiation Research, Japan Synchrotron Radiation Research Institute (JASRI), Sayo, Hyogo, 679-5198, Japan
| | - Oki Sekizawa
- Center for Synchrotron Radiation Research, Japan Synchrotron Radiation Research Institute (JASRI), Sayo, Hyogo, 679-5198, Japan
| | - Hiroki Suga
- Center for Synchrotron Radiation Research, Japan Synchrotron Radiation Research Institute (JASRI), Sayo, Hyogo, 679-5198, Japan
| | - Tomoya Uruga
- Center for Synchrotron Radiation Research, Japan Synchrotron Radiation Research Institute (JASRI), Sayo, Hyogo, 679-5198, Japan
| | - Yuto Ichinohe
- Department of Physics, Rikkyo University, Toshima-Ku, Tokyo, 171-8501, Japan
| | - Toshiki Sato
- Department of Physics, Rikkyo University, Toshima-Ku, Tokyo, 171-8501, Japan
| | - Yuichi Toyama
- Engineering Science Laboratory, Chubu University, Kasugai, 487-8501, Japan
| | - Hirofumi Noda
- Department of Earth and Space Science, Osaka University, Toyonaka, Osaka, 560-0043, Japan
| | | | - Sayuri Takatori
- Research Institute for Interdisciplinary Science, Okayama University, Okayama, Okayama, 700-8530, Japan
| | - Takahiro Hiraki
- Research Institute for Interdisciplinary Science, Okayama University, Okayama, Okayama, 700-8530, Japan
| | - Hideyuki Tatsuno
- Department of Physics, Tokyo Metropolitan University, Hachioji, Tokyo, 192-0397, Japan
| | - Nao Kominato
- Department of Physics, Rikkyo University, Toshima-Ku, Tokyo, 171-8501, Japan
| | - Masaki Ito
- Department of Physics, Rikkyo University, Toshima-Ku, Tokyo, 171-8501, Japan
| | - Yusuke Sakai
- Department of Physics, Rikkyo University, Toshima-Ku, Tokyo, 171-8501, Japan
| | - Hajime Omamiuda
- Department of Physics, Rikkyo University, Toshima-Ku, Tokyo, 171-8501, Japan
| | - Akiko Yamaguchi
- Center for Computational Science and e-Systems, Japan Atomic Energy Agency, Kashiwa, Chiba, 277-0871, Japan
| | - Takumi Yomogida
- Nuclear Science and Engineering Center, Japan Atomic Energy Agency, Ibaraki, 319-1195, Japan
| | - Hikaru Miura
- Sustainable System Research Laboratory, Central Research Institute of Electric Power Industry, 1646 Abiko, Abiko, Chiba, 270-1194, Japan
| | - Makoto Nagasawa
- Department of Earth and Planetary Science, The University of Tokyo, Hongo 7-3-1, Bunkyo, Tokyo, 113-0033, Japan
| | - Shinji Okada
- Engineering Science Laboratory, Chubu University, Kasugai, 487-8501, Japan
| | - Yoshio Takahashi
- Department of Earth and Planetary Science, The University of Tokyo, Hongo 7-3-1, Bunkyo, Tokyo, 113-0033, Japan.
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Xie C, Li X, Hei L, Chen Y, Dong Y, Zhang S, Ma S, Xu J, Pang Q, Lynch I, Guo Z, Zhang P. Toxicity of ceria nanoparticles to the regeneration of freshwater planarian Dugesia japonica: The role of biotransformation. Sci Total Environ 2023; 857:159590. [PMID: 36270358 DOI: 10.1016/j.scitotenv.2022.159590] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/21/2022] [Revised: 08/18/2022] [Accepted: 10/16/2022] [Indexed: 06/16/2023]
Abstract
Cerium oxide nanoparticles (n-CeO2) have wide applications ranging from industrial to consumer products, which would inevitably lead to their release into the environment. Despite the toxicity of n-CeO2 on aquatic organisms has been largely reported, research on developing organisms is still lacking. In this study, we investigate the toxic effects of n-CeO2 on the stem cells, tissue- and neuro-regeneration, using freshwater planarian Dugesia japonica as a model. Effects of bulk sized (μ-) CeO2 and ionic Ce (Ce3+) were compared with that of n-CeO2 to explore the origin of the toxic effects of n-CeO2. No overt toxicity was observed in μ-CeO2 treatment. n-CeO2 not only impaired the homeostasis of normal planarians, but also inhibited the regeneration processes of regenerated planarians, demonstrated by the inhibited blastema growth, disturbed antioxidant defense system at molecular levels, elevated DNA-damage and decreased stem cell proliferation. Regenerating organisms are more susceptible to n-CeO2 than the normal ones. Ce3+ exhibited significantly higher toxicity than n-CeO2, even though the total Ce uptake is 0.2 % less in Ce3+ than in n-CeO2 treated in planarian. X-ray absorption near edge spectroscopy (XANES) analysis revealed that 12.8 % of n-CeO2 (5.95 mg/kg Ce per planarian) was transformed to Ce3+ after interaction with planarian, suggesting that biotransformation at the nano-bio interface might play an important role in the observed toxicity. Since the biotransformation of n-CeO2 is a slow process, it may cause long-term chronic toxicity to planarians due to the slow while sustained release of toxic Ce3+ ions.
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Affiliation(s)
- Changjian Xie
- School of life Sciences and medicine, Shandong University of Technology, Zibo 255000, Shandong, China.
| | - Xiaowei Li
- School of life Sciences and medicine, Shandong University of Technology, Zibo 255000, Shandong, China
| | - Lisha Hei
- School of life Sciences and medicine, Shandong University of Technology, Zibo 255000, Shandong, China
| | - Yiqing Chen
- School of life Sciences and medicine, Shandong University of Technology, Zibo 255000, Shandong, China
| | - Yuling Dong
- School of life Sciences and medicine, Shandong University of Technology, Zibo 255000, Shandong, China
| | - Shujing Zhang
- School of life Sciences and medicine, Shandong University of Technology, Zibo 255000, Shandong, China
| | - Shan Ma
- Zibo Environment Monitoring Center, Zibo 25500, Shandong, China
| | - Jianing Xu
- School of life Sciences and medicine, Shandong University of Technology, Zibo 255000, Shandong, China
| | - Qiuxiang Pang
- School of life Sciences and medicine, Shandong University of Technology, Zibo 255000, Shandong, China.
| | - Iseult Lynch
- School of Geography, Earth & Environmental Sciences, University of Birmingham, Edgbaston, Birmingham B15 2TT, United Kingdom
| | - Zhiling Guo
- School of Geography, Earth & Environmental Sciences, University of Birmingham, Edgbaston, Birmingham B15 2TT, United Kingdom.
| | - Peng Zhang
- School of Geography, Earth & Environmental Sciences, University of Birmingham, Edgbaston, Birmingham B15 2TT, United Kingdom; Department of Environmental Science and Engineering, University of Science and Technology of China, Hefei 230026, China
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Gutsalenko T, Bourdot A, Billon G, Alaimo V, Wattez T, Frouin L, Chaouche M. Effect of hydraulic binders' addition on trace metals stabilization in the S/S process of dredged sediments. J Environ Manage 2022; 324:116362. [PMID: 36183525 DOI: 10.1016/j.jenvman.2022.116362] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/23/2022] [Revised: 09/12/2022] [Accepted: 09/22/2022] [Indexed: 06/16/2023]
Abstract
The Solidification/Stabilization method for dredged sediments remediation can be very effective for the immobilization of trace metal (TM) pollutants. The ordinary Portland cement (OPC) is largely used in this process. Nevertheless, the mechanical performance of treated sediments can be considerably improved at long term using ground granulated blast furnace slag (GGBS) as was shown in (Gutsalenko et al., 2018). Therefore, it is worth investigating whether this new binder is also relevant in terms of stabilization and mechanisms involved in this process. To meet this objective, leaching test, total attack, sequential extraction (SE) and X-ray Adsorption Near-Edge Structure (XANES) experiments measurements were performed. The results of the leaching tests conducted as part of the study are promising for the use of GGBS in the treatment of the real case project Dublin sediment and it outperforms the OPC-based treatment.. The sequential extraction method was applied to evaluate the potential risks of toxic elements according to their repartition in the Dublin sediment matrix and predicts the release of metals under different environmental conditions. It shows a lower perturbation rate of pollutants with the GGBS-based binder. Finally, XANES experiments demonstrate changes in the chemical environment of Zn and Cu after the treatment of the sediment with OPC compared to the GGBS rich binder. Consequently, this study finds that it is more pertinent to use the GGBS-based binder in terms of trace metal stabilization.
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Affiliation(s)
- Tetiana Gutsalenko
- Université Paris-Saclay, CentraleSupélec, ENS Paris-Saclay, CNRS, Laboratoire de Mécanique Paris-Saclay, 91190, Gif-sur-Yvette, France; ECOCEM Materials, 4 Place Louis Armand, 75012, Paris, France
| | - Alexandra Bourdot
- Université Paris-Saclay, CentraleSupélec, ENS Paris-Saclay, CNRS, Laboratoire de Mécanique Paris-Saclay, 91190, Gif-sur-Yvette, France.
| | - Gabriel Billon
- Univ. Lille, CNRS, UMR 8516 - LASIRE, Laboratoire Avancé de Spectroscopie pour les Interactions, la Réactivité et l'Environnement, F-59000, Lille, France
| | - Véronique Alaimo
- Univ. Lille, CNRS, UMR 8516 - LASIRE, Laboratoire Avancé de Spectroscopie pour les Interactions, la Réactivité et l'Environnement, F-59000, Lille, France
| | - Thomas Wattez
- ECOCEM Materials, 4 Place Louis Armand, 75012, Paris, France
| | - Laurent Frouin
- ECOCEM Materials, 4 Place Louis Armand, 75012, Paris, France
| | - Mohend Chaouche
- Université Paris-Saclay, CentraleSupélec, ENS Paris-Saclay, CNRS, Laboratoire de Mécanique Paris-Saclay, 91190, Gif-sur-Yvette, France
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Hu C, Sun D, Liu J, Zhang Q, Li X, Fu H, Liu M, Xu J, Jiang G, Lu Y. Enhanced Electrocatalytic Water Oxidation of Ultrathin Porous Co 3O 4 Nanosheets by Physically Mixing with Au Nanoparticles. Nanomaterials (Basel) 2022; 12:4419. [PMID: 36558272 PMCID: PMC9785958 DOI: 10.3390/nano12244419] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/02/2022] [Revised: 11/21/2022] [Accepted: 11/30/2022] [Indexed: 06/17/2023]
Abstract
Ultrathin porous Co3O4 nanosheets are synthesized successfully, the thickness of which is about three unit-cell dimensions. The enhanced oxygen evolution reaction (OER) performance and electronic interaction between Co3O4 and Au is firstly reported in Co3O4 ultrathin porous nanosheets by physically mixing with Au nanoparticles. With the loading of the Au nanoparticles, the current density of ultrathin porous Co3O4 nanosheets is enhanced from 9.97 to 14.76 mA cm-2 at an overpotential of 0.5 V, and the overpotential required for 10 mA cm-2 decreases from 0.51 to 0.46 V, smaller than that of commercial IrO2 (0.54 V). Furthermore, a smaller Tafel slope and excellent durability are also obtained. Raman spectra, XPS measurement, and X-ray absorption near edge structure spectra (XANES) show that the enhanced OER ascribed to a higher Co2+/Co3+ ratio and quicker charge transfer due to the electronic interaction between Au and ultrathin Co3O4 nanosheets with low-coordinated surface, and Co2+ ions are beneficial for the formation of CoOOH active sites.
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Affiliation(s)
- Changhe Hu
- School of Materials Science & Engineering, Shanghai Institute of Technology, Shanghai 201418, China
| | - Dejuan Sun
- Department of Materials Science and Engineering, University of Science and Technology of China, Hefei 230026, China
| | - Jie Liu
- School of Materials Science & Engineering, Shanghai Institute of Technology, Shanghai 201418, China
| | - Qi Zhang
- School of Materials Science & Engineering, Shanghai Institute of Technology, Shanghai 201418, China
| | - Xiao Li
- School of Materials Science & Engineering, Shanghai Institute of Technology, Shanghai 201418, China
| | - Huhui Fu
- School of Materials Science & Engineering, Shanghai Institute of Technology, Shanghai 201418, China
| | - M. Liu
- School of Materials Science & Engineering, Shanghai Institute of Technology, Shanghai 201418, China
- Department of Materials Science and Engineering, University of Science and Technology of China, Hefei 230026, China
| | - Jiayue Xu
- School of Materials Science & Engineering, Shanghai Institute of Technology, Shanghai 201418, China
| | - Guojian Jiang
- School of Materials Science & Engineering, Shanghai Institute of Technology, Shanghai 201418, China
| | - Yalin Lu
- Department of Materials Science and Engineering, University of Science and Technology of China, Hefei 230026, China
- Hefei National Laboratory for Physical Sciences at the Microscale, Hefei 230026, China
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Blommaert H, Aucour AM, Wiggenhauser M, Moens C, Telouk P, Campillo S, Beauchêne J, Landrot G, Testemale D, Pin S, Lewis C, Umaharan P, Smolders E, Sarret G. From soil to cacao bean: Unravelling the pathways of cadmium translocation in a high Cd accumulating cultivar of Theobroma cacao L. Front Plant Sci 2022; 13:1055912. [PMID: 36531371 PMCID: PMC9755593 DOI: 10.3389/fpls.2022.1055912] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/28/2022] [Accepted: 11/08/2022] [Indexed: 06/17/2023]
Abstract
The research on strategies to reduce cadmium (Cd) accumulation in cacao beans is currently limited by a lack of understanding of the Cd transfer pathways within the cacao tree. Here, we elucidated the transfer of Cd from soil to the nib (seed) in a high Cd accumulating cacao cultivar. Here, we elucidated the transfer of Cd from soil to the nib (seed) in a high Cd accumulating cacao cultivar through Cd stable isotope fractionation, speciation (X-Ray Absorption Spectroscopy), and localization (Laser Ablation Inductively Coupled Plasma Mass Spectrometry). The plant Cd concentrations were 10-28 higher than the topsoil Cd concentrations and increased as placenta< nib< testa< pod husk< root< leaf< branch. The retention of Cd in the roots was low. Light Cd isotopes were retained in the roots whilst heavier Cd isotopes were transported to the shoots (Δ 114/110 Cd shoot-root = 0.27 ± 0.02 ‰ (weighted average ± standard deviation)). Leaf Cd isotopes were heavier than Cd in the branches (Δ 114/110 Cd IF3 leaves-branch = 0.18 ± 0.01 ‰), confirming typical trends observed in annual crops. Nibs and branches were statistically not distinguishable (Δ 114/110 Cd nib-branch = -0.08‰ ± 0.06 ‰), contrary to the leaves and nibs (Δ 114/110 Cd nib-IF3 leaves = -0.25‰ ± 0.05 ‰). These isotope fractionation patterns alluded to a more direct transfer from branches to nibs rather than from leaves to nibs. The largest fraction (57%) of total plant Cd was present in the branches where it was primarily bound to carboxyl-ligands (60-100%) and mainly localized in the phloem rays and phelloderm of the bark. Cadmium in the nibs was mainly bound to oxygen ligands (60-90%), with phytate as the most plausible ligand. The weight of evidence suggested that Cd was transferred like other nutrients from root to shoot and accumulated in the phloem rays and phelloderm of the branches to reduce the transfer to foliage. Finally, the data indicated that the main contribution of nib Cd was from the phloem tissues of the branch rather than from leaf remobilization. This study extended the limited knowledge on Cd accumulation in perennial, woody crops and revealed that the Cd pathways in cacao are markedly different than in annual crops.
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Affiliation(s)
- Hester Blommaert
- Université Grenoble Alpes, Université Savoie Mont Blanc, CNRS, Centre National de la Recherche Scientifique (CNRS), Institut de Recherche pour le Développement (IRD), Université G. Eiffel, Institut des Sciences de la Terre (ISTERRE), Grenoble, France
| | - Anne-Marie Aucour
- Université de Lyon, Université Lyon 1, Ecole Normale Supérieure (ENS) de Lyon, Centre National de la Recherche Scientifique (CNRS), Unité Mixte de Recherche (UMR) 5276 Laboratoire de Géologie de Lyon - Terre, Planète et Environment (LGL-TPE), F-6922, Villeurbanne, France
| | - Matthias Wiggenhauser
- Institute of Agricultural Sciences, Eidgenössische Technische Hochschule (ETH) Zurich, Lindau, Switzerland
| | - Claudia Moens
- Division of Soil and Water Management, Department of Earth and Environmental Sciences, Katholieke Universiteit (KU) Leuven, Leuven, Belgium
| | - Philippe Telouk
- Université de Lyon, Université Lyon 1, Ecole Normale Supérieure (ENS) de Lyon, Centre National de la Recherche Scientifique (CNRS), Unité Mixte de Recherche (UMR) 5276 Laboratoire de Géologie de Lyon - Terre, Planète et Environment (LGL-TPE), F-6922, Villeurbanne, France
| | - Sylvain Campillo
- Université Grenoble Alpes, Université Savoie Mont Blanc, CNRS, Centre National de la Recherche Scientifique (CNRS), Institut de Recherche pour le Développement (IRD), Université G. Eiffel, Institut des Sciences de la Terre (ISTERRE), Grenoble, France
| | - Jacques Beauchêne
- Centre de Coopération Internationale en Recherche Agronomique pour le Développement (CIRAD), Unité Mixte de Recherche (UMR) Ecologie des Forêts de Guyane (EcoFoG), AgroParisTech, Centre National de la Recherche Scientifique (CNRS), Institut National de Recherche Pour l'agriculture, l'alimentation et l'environnement (INRA), Université des Antilles, Université de Guyane, Kourou, France
| | - Gautier Landrot
- Synchrotron SOLEIL, L’Orme des Merisiers, Saint-Aubin, Gif-sur-Yvette, France
| | - Denis Testemale
- Univ. Grenoble Alpes, Centre National de la Recherche Scientifique (CNRS), Institut National polytechnique de Grenoble (INP), Institut Néel, Grenoble, France
| | - Serge Pin
- Université Paris-Saclay, Commissariat à l'énergie atomique et aux énergies alternatives (CEA), Centre National de la Recherche Scientifique (CNRS), Nanosciences et Innovation pour les Matériaux, la Biomédecine et l'Energie (NIMBE), Gif-sur-Yvette, France
| | - Caleb Lewis
- Cocoa Research Centre, University of the West Indies, St. Augustine, Trinidad and Tobago
| | - Pathmanathan Umaharan
- Cocoa Research Centre, University of the West Indies, St. Augustine, Trinidad and Tobago
| | - Erik Smolders
- Division of Soil and Water Management, Department of Earth and Environmental Sciences, Katholieke Universiteit (KU) Leuven, Leuven, Belgium
| | - Géraldine Sarret
- Université Grenoble Alpes, Université Savoie Mont Blanc, CNRS, Centre National de la Recherche Scientifique (CNRS), Institut de Recherche pour le Développement (IRD), Université G. Eiffel, Institut des Sciences de la Terre (ISTERRE), Grenoble, France
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Lucas E, Mosesso L, Roswall T, Yang YY, Scheckel K, Shober A, Toor GS. X-ray absorption near edge structure spectroscopy reveals phosphate minerals at surface and agronomic sampling depths in agricultural Ultisols saturated with legacy phosphorus. Chemosphere 2022; 308:136288. [PMID: 36058369 PMCID: PMC9843306 DOI: 10.1016/j.chemosphere.2022.136288] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/22/2022] [Revised: 08/24/2022] [Accepted: 08/28/2022] [Indexed: 06/15/2023]
Abstract
Legacy phosphorus (P) soils have received excessive P inputs from historic manure and fertilizer applications and present unique management challenges for protecting water quality as soil P saturation leads to increased soluble P to waterways. We used P K-edge X-ray absorption near edge structure (XANES) spectroscopy to identify and quantify the dominant P minerals in four representative legacy P soils under conventional till and no-till management in Maryland, USA. Various measures of extractable soil P, including water-extractable P (20.6-54.1 mg kg-1 at 1:10 soil-to-water ratio; 52.7-132.2 mg kg-1 at 1:100 soil-to-water ratio), plant available P extracted with Mehlich 3 (692-1139 mg kg-1), and Mehlich 3P saturation ratio (0.54-1.37), were above the environmental threshold values, suggesting the accumulation of legacy P in soils. The quantification of dominant P minerals may provide insights into the potential of legacy P soils to contribute to P release for crop use and soluble P losses. Linear combination fits of XANES spectra identified the presence of four phosphate mineral groups, consisting of (i) calcium-phosphate minerals (11-59%) in the form of fluorapatite, β-tricalcium phosphate, and brushite, followed by (ii) iron-phosphate minerals (12-49%) in the form of ludlamite, heterosite, P sorbed to ferrihydrite, and amorphous iron phosphates, (iii) aluminum-phosphate minerals (15-33%) in the form of wavellite and P sorbed to aluminum hydroxide, and (iv) other phosphate minerals (5-35%) in the form of copper-phosphate (cornetite, 5-18%) and manganese-phosphate (hureaulite, 25-35%). Organic P consisting of phytic acid was found in most soils (13-24%) and was more pronounced in the surface layer of no-till (21-24%) than in tilled (16%) fields. Of the P forms identified with XANES, we conclude that P sorbed to Fe and Al, and Ca-P in the form of brushite and β-tricalcium phosphate will likely readily contribute to the soil WEP pool as the soil solution P is depleted by crop uptake and lost via runoff and leaching.
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Affiliation(s)
- Emileigh Lucas
- Nutrient Management and Water Quality Group, Department of Environmental Science and Technology, University of Maryland, College Park, MD, 20742, USA.
| | - Lauren Mosesso
- Department of Plant and Soil Sciences, University of Delaware, Newark, DE, 19716, USA
| | - Taylor Roswall
- Nutrient Management and Water Quality Group, Department of Environmental Science and Technology, University of Maryland, College Park, MD, 20742, USA
| | - Yun-Ya Yang
- Nutrient Management and Water Quality Group, Department of Environmental Science and Technology, University of Maryland, College Park, MD, 20742, USA
| | - Kirk Scheckel
- Center for Environmental Solutions & Emergency Response, Office of Research and Development, US Environmental Protection Agency, Cincinnati, OH, 45268, USA
| | - Amy Shober
- Department of Plant and Soil Sciences, University of Delaware, Newark, DE, 19716, USA
| | - Gurpal S Toor
- Nutrient Management and Water Quality Group, Department of Environmental Science and Technology, University of Maryland, College Park, MD, 20742, USA
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Sowers TD, Blackmon MD, Bone SE, Kirby AM, Jerden ML, Noerpel MR, Scheckel KG, Bradham KD. Successful Conversion of Pb-Contaminated Soils to Low-Bioaccessibility Plumbojarosite Using Potassium-Jarosite at Ambient Temperature. Environ Sci Technol 2022; 56:15718-15727. [PMID: 36239028 PMCID: PMC10398550 DOI: 10.1021/acs.est.2c05606] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Methods promoting lead (Pb) phase transformation in soils are essential for decreasing Pb bioaccessibility/bioavailability and may offer an in situ, cost-efficient process for mitigating contaminant exposure. Recent plumbojarosite (PLJ) conversion methods have shown the greatest potential to reduce soil Pb bioaccessibility, an in vitro bioaccessibility assay measurement of the proportion of Pb solubilized under gastric chemical conditions. Soils tested utilizing the recent PLJ method were found to have a Pb bioaccessibility of <1%, compared to original soils possessing bioaccessibility of >70%. However, this technique requires heat (95-100 °C) to promote mineral transformation. Jarosite-group minerals may incorporate multiple interlayer cations; therefore, we probed the potential for jarosite to remediate Pb via intercalation by reacting presynthesized potassium (K)-jarosite with aqueous Pb and/or Pb-contaminated soil at room temperature. Both K-jarosite and heated PLJ-treated samples were investigated by pairing bioaccessibility analyses with advanced bulk and spatially resolved X-ray absorption spectroscopy analyses. Samples treated with K-jarosite promoted Pb transformation to low-bioaccessibility (<10%) PLJ, with soil being converted to 100% PLJ using both heated and nonheated techniques. μ-X-ray fluorescence (μ-XRF) and μ-X-ray absorption near-edge structure (μ-XANES) showcase significant differences between elemental interactions for heated and nonheated PLJ-treated samples with anglesite impurities being found on the microscale. Although further development is necessary to accommodate for suitable field conditions, results indicate, for the first time, that K-jarosite may successfully convert soil Pb to PLJ without high-temperature conditions. The newfound utility of K-jarosite is expected to be key to future jarosite-based soil Pb remediation method development.
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Affiliation(s)
- Tyler D Sowers
- Center of Environmental Measurement and Modeling, Office of Research and Development, U.S. Environmental Protection Agency, Research Triangle Park, North Carolina 27711, United States
| | - Matthew D Blackmon
- Center of Environmental Measurement and Modeling, Office of Research and Development, U.S. Environmental Protection Agency, Research Triangle Park, North Carolina 27711, United States
| | - Sharon E Bone
- Stanford Synchrotron Radiation Lightsource, SLAC National Accelerator Laboratory, Menlo Park, California 94025, United States
| | - Alicia M Kirby
- Oak Ridge Associated Universities, Oak Ridge, Tennessee 37830, United States
| | - Marissa L Jerden
- Jacobs Technology, Inc., 109 T.W. Alexander Drive, Research Triangle Park, North Carolina 27711, United States
| | - Matthew R Noerpel
- Center for Environmental Solutions & Emergency Response, Office of Research and Development, U.S. Environmental Protection Agency, Cincinnati, Ohio 45268, United States
| | - Kirk G Scheckel
- Center for Environmental Solutions & Emergency Response, Office of Research and Development, U.S. Environmental Protection Agency, Cincinnati, Ohio 45268, United States
| | - Karen D Bradham
- Center of Environmental Measurement and Modeling, Office of Research and Development, U.S. Environmental Protection Agency, Research Triangle Park, North Carolina 27711, United States
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36
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Badea D, Dardenne K, Polly R, Rothe J, Hanrath M, Reimer M, Meerholz K, Neudörfl J, Strub E, Bruns J. Reaction of Pertechnetate in Highly Alkaline Solution: Synthesis and Characterization of the Nitridotrioxotechnetate Ba[TcO 3 N]. Chemistry 2022; 28:e202201738. [PMID: 35951451 PMCID: PMC9826414 DOI: 10.1002/chem.202201738] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2022] [Indexed: 01/11/2023]
Abstract
The preparation of novel technetium oxides, their characterization and the general investigation of technetium chemistry are of significant importance, since fundamental research has so far mainly focused on the group homologues. Whereas the structure chemistry of technetium in strongly oxidizing media is dominated by the Tc O 4 - ${{\left[{\rm { Tc}}{{\rm { O}}}_{{\rm { 4}}}\right]}^{-}}$ anion, our recent investigation yielded the new Tc O 3 N 2 - ${{\left[{\rm { Tc}}{{\rm { O}}}_{{\rm { 3}}}{\rm { N}}\right]}^{{\rm { 2}}-}}$ anion. Brown single crystals of Ba[TcO3 N] were obtained under hydrothermal conditions starting from Ba(OH)2 ⋅ 8H2 O and NH4 [TcO4 ] at 200 °C. Ba [ Tc O 3 N ] ${{\rm { Ba[Tc}}{{\rm { O}}}_{{\rm { 3}}}{\rm { N]}}}$ crystallizes in the monoclinic crystal system with the space group P21 /n (a=7.2159(4) Å, b=7.8536(5) Å, c=7.4931(4) Å and β=104.279(2)°). The crystal structure of Ba [ Tc O 3 N ] ${{\rm { Ba[Tc}}{{\rm { O}}}_{{\rm { 3}}}{\rm { N]}}}$ consists of isolated Tc O 3 N 2 - ${{\left[{\rm { Tc}}{{\rm { O}}}_{{\rm { 3}}}{\rm { N}}\right]}^{{\rm { 2}}-}}$ tetrahedra, which are surrounded by Ba2+ cations. XANES measurements complement the oxidation state +VII for technetium and Raman spectroscopic experiments on Ba[TcO3 N] single crystals exhibit characteristic Tc-O and Tc-N vibrational modes.
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Affiliation(s)
- D. Badea
- Department of ChemistryUniversity of CologneGreinstr. 4–650939CologneGermany
| | - K. Dardenne
- Institute for Nuclear Waste DisposalKarlsruhe Institute of TechnologyHermann-von-Helmholtz-Platz 176344Eggenstein-LeopoldshafenGermany
| | - R. Polly
- Institute for Nuclear Waste DisposalKarlsruhe Institute of TechnologyHermann-von-Helmholtz-Platz 176344Eggenstein-LeopoldshafenGermany
| | - J. Rothe
- Institute for Nuclear Waste DisposalKarlsruhe Institute of TechnologyHermann-von-Helmholtz-Platz 176344Eggenstein-LeopoldshafenGermany
| | - M. Hanrath
- Department of ChemistryUniversity of CologneGreinstr. 4–650939CologneGermany
| | - M. Reimer
- Department of ChemistryUniversity of CologneGreinstr. 4–650939CologneGermany
| | - K. Meerholz
- Department of ChemistryUniversity of CologneGreinstr. 4–650939CologneGermany
| | - J.‐M. Neudörfl
- Department of ChemistryUniversity of CologneGreinstr. 4–650939CologneGermany
| | - E. Strub
- Department of ChemistryUniversity of CologneGreinstr. 4–650939CologneGermany
| | - J. Bruns
- Department of ChemistryUniversity of CologneGreinstr. 4–650939CologneGermany
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Song Z, Li J, Davis KD, Li X, Zhang J, Zhang L, Sun X. Emerging Applications of Synchrotron Radiation X-Ray Techniques in Single Atomic Catalysts. Small Methods 2022; 6:e2201078. [PMID: 36207288 DOI: 10.1002/smtd.202201078] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/31/2022] [Indexed: 06/16/2023]
Abstract
Single atom catalysts (SACs) can achieve a maximum atom utilization efficiency of 100%, which provides significantly increased active sites compared with traditional catalysts during catalytic reactions. Synchrotron radiation technology is an important characterization method for identifying single-atom catalysts. Several types of internal information, such as the coordination number, bond length and electronic structure of metals, can all be analyzed. This review will focus on the introduction of synchrotron radiation techniques and their applications in SACs. First, the fundamentals of synchrotron radiation and the corresponding techniques applied in characterization of SACs will be briefly introduced, such as X-ray absorption near edge spectroscopy and extended X-ray absorption fine structure spectroscopy and in situ techniques. The detailed information obtained from synchrotron radiation X-ray characterization is described through four routes: 1) the local environment of a specific atom; 2) the oxidation state of SACs; 3) electronic structures at different orbitals; and 4) the in situ structure modification during catalytic reaction. In addition, a systematic summary of synchrotron radiation X-ray characterization on different types of SACs (noble metals and transition metals) will be discussed.
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Affiliation(s)
- Zhongxin Song
- College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen, 518060, China
| | - Junjie Li
- Department of Mechanical and Materials Engineering, The University of Western Ontario, London, ON N6A 5B9, Canada
| | - Kieran Doyle Davis
- Department of Mechanical and Materials Engineering, The University of Western Ontario, London, ON N6A 5B9, Canada
| | - Xifei Li
- Xi'an Key Laboratory of New Energy Materials and Devices, Institute of Advanced Electrochemical Energy & School of Materials Science and Engineering, Xi'an University of Technology, Xi'an, 710048, China
| | - Jiujun Zhang
- Institute for New Energy Materials and Engineering/College of Materials Science and Engineering, Fuzhou University, Fuzhou, 350108, China
- Institute for Sustainable Energy/College of Sciences, Shanghai University, Shanghai, 200444, China
| | - Lei Zhang
- College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen, 518060, China
| | - Xueliang Sun
- Department of Mechanical and Materials Engineering, The University of Western Ontario, London, ON N6A 5B9, Canada
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Burton ED, Lamb DT, Hamilton J, Miller G, Johnston SG, Karimian N. Remediation of Pb-contaminated soil using modified bauxite refinery residue. J Hazard Mater 2022; 437:129339. [PMID: 35709620 DOI: 10.1016/j.jhazmat.2022.129339] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/05/2022] [Revised: 05/20/2022] [Accepted: 06/07/2022] [Indexed: 06/15/2023]
Abstract
This study examines amendment of Pb-contaminated soil with modified bauxite refinery residue (MBRR) to decrease soil Pb mobility and bioaccessibility. Amendment experiments were conducted using four soils contaminated with Pb from various sources, including smelting, shooting-range activities and Pb-based paint waste. Lead L3-edge X-ray absorption spectroscopy (XAS) indicated that Pb speciation in these soils was a mixture of Pb sorbed to Fe (hydr)oxide and clay minerals, along with Pb bound to organic matter. Amendment with MBRR decreased water-soluble Pb and/or Toxicity Characteristic Leachate Procedure (TCLP) Pb concentrations. Lead L3-edge XAS and X-ray diffraction (XRD) indicated that Pb retention by MBRR occurred via sorption to Fe- and Al-(hydr)oxides at low Pb loadings, in addition to formation of hydrocerussite (Pb3(CO3)2(OH)2) at high loadings. Soil amendment with MBRR had relatively little effect on gastric-phase Pb bioaccessibility; as quantified via the Solubility/Bioavailability Research Consortium, SBRC, in vitro assay. In contrast, amendment with MBRR caused substantial decreases in relative intestinal-phase Pb bioaccessibility (Rel-SBRC-I) due to increased Pb sorption by MBRR's Fe- and Al-hydr(oxide) minerals as simulated GI tract conditions shifted from the gastric- to the intestinal-phase. These decreases in Rel-SBRC-I point to the potential efficacy of using amendment with MBRR to decrease soil Pb bioavailability.
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Affiliation(s)
- Edward D Burton
- Faculty of Science & Engineering, Southern Cross University, Lismore, New South Wales 2480, Australia.
| | - Dane T Lamb
- Chemical and Environmental Engineering, School of Engineering, RMIT University, Melbourne, Victoria 3000, Australia
| | | | - Graeme Miller
- Faculty of Science & Engineering, Southern Cross University, Lismore, New South Wales 2480, Australia; Senversa Pty Ltd, Adelaide, SA 5000, Australia
| | - Scott G Johnston
- Faculty of Science & Engineering, Southern Cross University, Lismore, New South Wales 2480, Australia
| | - Niloofar Karimian
- Faculty of Science & Engineering, Southern Cross University, Lismore, New South Wales 2480, Australia; CSIRO Mineral Resources, Clayton South, VIC 3169, Australia
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Imam NG, Harfouche M, Azab AA, Solyman S. Coupling between γ-irradiation and synchrotron-radiation-based XAFS techniques for studying Mn-doped ZnO nanoparticles. J Synchrotron Radiat 2022; 29:1187-1197. [PMID: 36073877 PMCID: PMC9455205 DOI: 10.1107/s1600577522006439] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/05/2022] [Accepted: 06/21/2022] [Indexed: 06/15/2023]
Abstract
γ-Irradiation and synchrotron-radiation-based X-ray absorption fine-structure (XAFS) spectroscopy have been used to induce structure disorder through the interaction of γ-rays (200 kGy) with fabricated Mn-doped ZnO nanoparticles (NPs) and then to examine thoroughly the resultant structural change. The extracted electronic/fine XAFS structural parameters reflect a compositional and γ-irradiation co-dependence. The average crystal structure of samples prepared by the sol-gel method was investigated by X-ray diffraction (XRD). A detailed structural XRD data analysis was carried out by applying a Rietveld refinement using the MAUD program. XAFS spectra were collected at the Zn K-edge (9659 eV) in transmission mode and at the Mn K-edge (6539 eV) in fluorescence mode. Direct evidence of the solubility of Mn ions in the ZnO structure was demonstrated by fitting the extended-XAFS (EXAFS) signal. Near-edge XAFS (XANES) analysis provided the oxidation states of Zn and Mn ions through fingerprint XANES spectra of the sample along with those of standard compounds. Linear combination fitting showed that the most fit chemical forms of Zn and Mn in the samples are ZnO and MnO, respectively. The oxidation states of both Zn and Mn XAFS absorbers were confirmed from pre-edge fitting. The results of the magnetic measurements were explained in light of the average and electronic/local structural information obtained from XRD, XANES and EXAFS techniques. The magnetic properties of the samples translate into an induced change in the average crystal and electronic/local structures upon Mn concentration change and γ-irradiation. XRD confirmed the successful preparation of hexagonal Mn-doped ZnO NPs with a crystallite size in the range 33-41 nm. Both XRD and EXAFS analysis detected a minor amount of Mn3O4 as a secondary phase. XANES and EXAFS provided information exploring the outstanding potential of the utilized protocol for detecting precisely the presence of the secondary phase of Mn3O4, which changes with Mn content (x). Mean-square relative displacement (σ2) values extracted from the EXAFS fitting were found to grow for Zn-Zn/Mn paths demonstrating the substitution of Mn/Zn into Zn crystal sites. The EXAFS analysis explains the reasons behind the enhancement in the magnetic properties and shows that the Mn doping content at x = 0.05 produces the most local atomic disorder in ZnO NPs. There is a strong harmony among the XRD, XANES, EXAFS and magnetization behavior of the Mn-doped ZnO NPs. Maximum magnetization was acquired at an Mn content of 0.05. γ-Ray-irradiated Zn1-xMnxO NPs are recommended as optimized candidates for showing the diversity of the applications.
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Affiliation(s)
- N. G. Imam
- Experimental Nuclear Physics Department (Solid State Laboratory), Nuclear Research Center (NRC), Egyptian Atomic Energy Authority (EAEA), Cairo 13759, Egypt
| | - Messaoud Harfouche
- Synchrotron-Light for Experimental and Scientific Applications in the Middle East (SESAME), PO Box 7, Allan 19252, Jordan
| | - A. A. Azab
- Solid State Physics Department, Physics Research Institute, National Research Centre, 33 El Bohouth Street, Dokki, 12622 Giza, Egypt
| | - S. Solyman
- Physics Department, Faculty of Science, Zagazig University, Zagazig, Egypt
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Cui JL, Yang J, Zhao Y, Chan T, Xiao T, Tsang DCW, Li X. Partitioning and (im)mobilization of arsenic associated with iron in arsenic-bearing deep subsoil profiles from Hong Kong. Environ Pollut 2022; 308:119527. [PMID: 35623570 DOI: 10.1016/j.envpol.2022.119527] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/21/2022] [Revised: 05/03/2022] [Accepted: 05/21/2022] [Indexed: 05/25/2023]
Abstract
Understanding the arsenic (As) enrichment mechanisms in the subsurface environment relies on a systematic investigation of As valence species and their partitioning with the Fe (oxyhydr)oxide phases in the subsoil profile. The present study explored the distribution, speciation, partitioning, and (im)mobilization of As associated with Fe in four subsoil cores (∼30 m depth) from Hong Kong using sequential chemical extraction and X-ray absorption near edge spectroscopy. The subsoil profiles exhibited relatively high concentrations of As at 26.1-982 mg/kg (median of 112 mg/kg), and the As was dominated by As(V) (85-96%) and primarily associated with the residual fraction (50.7-94.7%). A small amount of As (0.002-13.2 mg/kg) was easily mobilized from the four subsoil profiles, and a concentration of water-soluble As higher than 100 μg/L was observed for only some subsoil layers. The molar ratios of As:Fe in the oxalate-extractable Fe fraction ranged from 1.2 to 76.5 mmol/mol (median of 11.1 mmol/mol), revealing the participation of poorly crystalline Fe (oxyhydr)oxides in immobilizing most of the high geogenic As. The primary phases of ferric (oxyhydr)oxides were characterized as ferrihydrite (16-53%), lepidocrocite (0-32%), and goethite (0-62%), and these phases contributed to the sufficient ability of the subsoil to sequester 45.3-100% (median of 98.8%) of the exogenous As(V) (1.0 mg/L) in adsorption experiments. In contrast to As(V), exogenous As(III) showed a lower removal percentage (3.9-79.1%, median of 45.1%). The study revealed that the chemical speciation of As and Fe in the subsoil profiles is useful for predicting the immobilization of high geogenic As in the region, which is also helpful for the safe utilization of As-containing soil during land development worldwide.
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Affiliation(s)
- Jin-Li Cui
- Key Laboratory for Water Quality and Conservation of the Pearl River Delta, Ministry of Education, School of Environmental Science and Engineering, Guangzhou University, Guangzhou, 510006, China; Department of Civil and Environmental Engineering, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong.
| | - Jinsu Yang
- Key Laboratory for Water Quality and Conservation of the Pearl River Delta, Ministry of Education, School of Environmental Science and Engineering, Guangzhou University, Guangzhou, 510006, China
| | - Yanping Zhao
- Department of Civil and Environmental Engineering, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong; Guangdong Provincial Key Laboratory of Chemical Measurement and Emergency Test Technology, Institute of Analysis, Guangdong Academy of Sciences (China National Analytical Center Guangzhou), Guangzhou, 510070, China
| | - Tingshan Chan
- National Synchrotron Radiation Research Center, 101 Hsin-Ann Road, Hsinchu Science Park, Hsinchu, 30076, Taiwan
| | - Tangfu Xiao
- Key Laboratory for Water Quality and Conservation of the Pearl River Delta, Ministry of Education, School of Environmental Science and Engineering, Guangzhou University, Guangzhou, 510006, China
| | - Daniel C W Tsang
- Department of Civil and Environmental Engineering, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong
| | - Xiangdong Li
- Department of Civil and Environmental Engineering, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong
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Schmidt F, Ledermann L, Schäffer A, Snaith HJ, Lenz M. Rapid sequestration of perovskite solar cell-derived lead in soil. J Hazard Mater 2022; 436:128995. [PMID: 35525217 DOI: 10.1016/j.jhazmat.2022.128995] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/23/2022] [Revised: 04/16/2022] [Accepted: 04/20/2022] [Indexed: 06/14/2023]
Abstract
Efficient and stable perovskite solar cells rely on the use of Pb species potentially challenging the technologies' commercialisation. In this study, the fate of Pb derived from two common perovskite precursors is compared to cationic lead in soil-water microcosm experiments under various biogeochemical conditions. The rapid and efficient removal of Pb from the aqueous phase is demonstrated by inductively coupled plasma mass spectrometry. Sequential soil extraction results reveal that a substantial amount of Pb is associated with immobile fractions, whereas a minor proportion of Pb may become available again in the long term, when oxygen is depleted (e.g. during water logging). X-ray absorption spectroscopy results reveal that the sorption of Pb on mineral phases represents the most likely sequestration mechanism. The obtained results suggest that the availability of leached Pb from perovskite solar cells is naturally limited in soils and that its adverse effects on soil biota are possibly negligible in oxic soils. All three Pb sources used behaved very similar in the experiments, wherefore we conclude that perovskite derived Pb will have a similar fate compared to cationic Pb, so that established risk assessment considerations for Pb remain legitimate.
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Affiliation(s)
- Felix Schmidt
- Institute for Ecopreneurship, School of Life Sciences, University of Applied Sciences and Arts Northwestern Switzerland, Hofackerstrasse 30, 4132 Muttenz, Switzerland; Institute for Environmental Research, RWTH Aachen University, Worringerweg 1, 52074 Aachen, Germany
| | - Luca Ledermann
- Institute for Ecopreneurship, School of Life Sciences, University of Applied Sciences and Arts Northwestern Switzerland, Hofackerstrasse 30, 4132 Muttenz, Switzerland
| | - Andreas Schäffer
- Institute for Environmental Research, RWTH Aachen University, Worringerweg 1, 52074 Aachen, Germany
| | - Henry J Snaith
- Department of Physics, University of Oxford, Clarendon Laboratory, Parks Road, Oxford OX1 3PU, UK
| | - Markus Lenz
- Institute for Ecopreneurship, School of Life Sciences, University of Applied Sciences and Arts Northwestern Switzerland, Hofackerstrasse 30, 4132 Muttenz, Switzerland; Sub-Department of Environmental Technology, Wageningen University, 6700 AA Wageningen, The Netherlands.
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42
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Negassa W, Klysubun W, Leinweber P. Sulfur speciation in drained and restored minerotrophic peatland types of northeastern Germany. J Environ Manage 2022; 316:115282. [PMID: 35576710 DOI: 10.1016/j.jenvman.2022.115282] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/31/2021] [Revised: 05/07/2022] [Accepted: 05/08/2022] [Indexed: 06/15/2023]
Abstract
Restoring drained peatlands has been practiced to mitigate climate change, regulate water quality, and restore biodiversity. However, no information is available on the long-term impact of drainage and restoration of peatlands on total sulfur (St), fractions, and S species. We investigated the long-term drained and restored forested and coastal peatlands and percolation mires using the sequential S fractionation and S K-edge X-ray near-edge absorption structure (XANES) spectroscopy analysis to address this knowledge gap. The St concentrations in the drained forested peatland and percolation mire were low by 4 and 1.5 folds compared to their respective restored peatlands at the topsoil horizons. Similarly, the H2O-S and NaH2PO4-S fractions in the drained forested peatland (28 and 18 mg kg-1) were lower than in the restored forested peatland (165 and 166 mg kg-1). However, the S fractions were higher in the drained percolation mire (449 and 247 mg kg-1) than in the restored percolation mire (150 and 41 mg kg-1). The relative proportion of the residual-S fraction (70-97% of St) was equivalent to the relative proportion of organic S species (76-97% of St) derived from the XANES analysis. The XANES analysis revealed the reduced organic S (44-62%), organic S with intermediate oxidation states (16-47%), strongly reduced (0-21%) and oxidized inorganic S species (4-12%) of the St. The results indicate that long-term restoration conserved St, decreased labile S fractions and enriched the strongly reduced inorganic and organic S species.
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Affiliation(s)
- Wakene Negassa
- University of Rostock, Faculty of Agriculture and Environmental Sciences, 18051, Rostock, Germany.
| | - Wantana Klysubun
- Synchrotron Light Research Institute, Nakhon Ratchasima, 30000, Thailand
| | - Peter Leinweber
- University of Rostock, Faculty of Agriculture and Environmental Sciences, 18051, Rostock, Germany
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43
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Wu X, Gao B, Lyu X, Zeng X, Wu J, Sun Y. Insight into the mechanism of phosphate and cadmium co-transport in natural soils. J Hazard Mater 2022; 435:129095. [PMID: 35650735 DOI: 10.1016/j.jhazmat.2022.129095] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/08/2022] [Revised: 05/04/2022] [Accepted: 05/04/2022] [Indexed: 06/15/2023]
Abstract
Phosphate is ubiquitous in the environment and can affect the transport of heavy metals in the subsurface systems. In this study, column experiments were conducted to systematically evaluate the effects of phosphate on the transport of Cd in natural soils (RS, BS) under different ionic strength (IS) conditions. The presence of phosphate significantly retarded the transport of Cd in the soils. The extent of retardation was closely associated with phosphate concentrations, IS and soil properties. Increasing phosphate adsorption induced more negative surface charges on soils, thereby contributing to greater retention of Cd through electrostatic attraction. In contrast, higher IS not only promoted mobility of Cd, but also reduced the retardation effect of phosphate on Cd transport in soils. Moreover, higher Fe/Al oxides contents in RS exhibited a more pronounced effect of phosphate on Cd retardation. Our results indicated that electrostatic interaction was the predominant mechanism controlling co-transport of Cd with phosphate, but no ternary surface complexes was observed in the Cd LIII-edge XANES spectra. Our findings highlight the critical role of phosphate in retarding Cd transport in natural soils, which should be considered in assessing environmental risks of heavy metals in the subsurface.
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Affiliation(s)
- Xiaoli Wu
- State Key Laboratory of Pollution Control and Resource Reuse, Key Laboratory of Surficial Geochemistry, Ministry of Education, School of Earth Sciences and Engineering, Hydrosciences Department, Nanjing University, Nanjing 210023, China
| | - Bin Gao
- Department of Agricultural and Biological Engineering, University of Florida, Gainesville, FL 32611, USA
| | - Xueyan Lyu
- School of Hydrology and Water Resources, Nanjing University of Information Science and Technology, Nanjing 210044, China
| | - Xiankui Zeng
- State Key Laboratory of Pollution Control and Resource Reuse, Key Laboratory of Surficial Geochemistry, Ministry of Education, School of Earth Sciences and Engineering, Hydrosciences Department, Nanjing University, Nanjing 210023, China
| | - Jichun Wu
- State Key Laboratory of Pollution Control and Resource Reuse, Key Laboratory of Surficial Geochemistry, Ministry of Education, School of Earth Sciences and Engineering, Hydrosciences Department, Nanjing University, Nanjing 210023, China
| | - Yuanyuan Sun
- State Key Laboratory of Pollution Control and Resource Reuse, Key Laboratory of Surficial Geochemistry, Ministry of Education, School of Earth Sciences and Engineering, Hydrosciences Department, Nanjing University, Nanjing 210023, China.
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Abbasi S, Lamb DT, Choppala G, Burton ED, Megharaj M. Antimony speciation, phytochelatin stimulation and toxicity in plants. Environ Pollut 2022; 305:119305. [PMID: 35430314 DOI: 10.1016/j.envpol.2022.119305] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/13/2022] [Revised: 04/08/2022] [Accepted: 04/11/2022] [Indexed: 06/14/2023]
Abstract
Antimony (Sb) is a toxic metalloid that has been listed as a priority pollutant. The environmental impacts of Sb have recently attracted attention, but its phytotoxicity and biological transformation remain poorly understood. In this study, Sb speciation and transformation in plant roots was quantified by Sb K-edge X-ray absorption spectroscopy. In addition, the phytotoxicity of antimonate (SbV) on six plant species was assessed by measuring plant photosynthesis, growth, and phytochelatin production induced by SbV. Linear combination fitting of the Sb K-edge X-ray absorption near-edge structure (XANES) spectra indicated reduction of SbV was limited to ∼5-33% of Sb. The data confirmed that Sb-polygalacturonic acid was the predominant chemical form in all plant species (up to 95%), indicating Sb was primarily bound to the cell walls of plant roots. Shell fitting of Sb K-edge X-ray absorption fine-structure (EXAFS) spectra confirmed Sb-O and Sb-C were the dominant scattering paths. The fitting indicated that SbV was bound to hydroxyl functional groups of cell walls, via development of a local coordination environment analogous to Sb-polygalacturonic acid. This is the first study to demonstrate the key role of plant cell walls in Sb metabolism.
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Affiliation(s)
- Sepide Abbasi
- Global Centre for Environmental Remediation (GCER), The University of Newcastle, Callaghan, New South Wales, Australia; Environmental Resources Management (ERM), Sydney, Australia
| | - Dane T Lamb
- Chemical and Environmental Engineering, School of Engineering, RMIT University, Melbourne, Victoria, 3000, Australia.
| | - Girish Choppala
- Global Centre for Environmental Remediation (GCER), The University of Newcastle, Callaghan, New South Wales, Australia
| | - Edward D Burton
- Faculty of Science and Engineering, Southern Cross University, Lismore, New South Wales, 2480, Australia
| | - Mallavarapu Megharaj
- Global Centre for Environmental Remediation (GCER), The University of Newcastle, Callaghan, New South Wales, Australia
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Harfouche M, Abdellatief M, Momani Y, Abbadi A, Al Najdawi M, Al Zoubi M, Aljamal B, Matalgah S, Khan LU, Lausi A, Paolucci G. Emergence of the first XAFS/XRF beamline in the Middle East: providing studies of elements and their atomic/electronic structure in pluridisciplinary research fields. J Synchrotron Radiat 2022; 29:1107-1113. [PMID: 35787578 PMCID: PMC9255566 DOI: 10.1107/s1600577522005215] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/21/2021] [Accepted: 05/14/2022] [Indexed: 06/15/2023]
Abstract
XAFS/XRF is a general-purpose absorption spectroscopy beamline at the Synchrotron-light for Experimental Science and Applications in the Middle East (SESAME), Jordan. Herein, its optical layout is presented along with its powerful capabilities in collecting absorption and fluorescence spectra within a wide energy range (4.7-30 keV). The beamline is equipped with a conventional fixed-exit double-crystal monochromator that allows the collection of an X-ray absorption spectrum within a few minutes in step-by-step mode. An on-the-fly scanning mode will be implemented shortly where the acquisition time will be reduced to less than a minute per scan. The full automation of the beamline allows performing successive measurements under different conditions. The different experimental setups and special features available to users are reported. Examples of XRF and XAFS measurements are presented, showing the performance of the beamline under different standard conditions.
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Affiliation(s)
- Messaoud Harfouche
- SESAME (Synchrotron-light for Experimental Science and Applications in the Middle East), Allan 19252, Jordan
| | - Mahmoud Abdellatief
- SESAME (Synchrotron-light for Experimental Science and Applications in the Middle East), Allan 19252, Jordan
| | - Yazeed Momani
- SESAME (Synchrotron-light for Experimental Science and Applications in the Middle East), Allan 19252, Jordan
| | - Anas Abbadi
- SESAME (Synchrotron-light for Experimental Science and Applications in the Middle East), Allan 19252, Jordan
| | - Mohammad Al Najdawi
- SESAME (Synchrotron-light for Experimental Science and Applications in the Middle East), Allan 19252, Jordan
| | - Mustafa Al Zoubi
- SESAME (Synchrotron-light for Experimental Science and Applications in the Middle East), Allan 19252, Jordan
| | - Basil Aljamal
- SESAME (Synchrotron-light for Experimental Science and Applications in the Middle East), Allan 19252, Jordan
| | - Salman Matalgah
- SESAME (Synchrotron-light for Experimental Science and Applications in the Middle East), Allan 19252, Jordan
| | - Latif U. Khan
- SESAME (Synchrotron-light for Experimental Science and Applications in the Middle East), Allan 19252, Jordan
| | - Andrea Lausi
- SESAME (Synchrotron-light for Experimental Science and Applications in the Middle East), Allan 19252, Jordan
- Elettra-Sincrotrone Trieste SCpA, Strada Statale 14 – km 163,5 in AREA Science Park, Basovizza/Trieste 34149, Italy
| | - Giorgio Paolucci
- Elettra-Sincrotrone Trieste SCpA, Strada Statale 14 – km 163,5 in AREA Science Park, Basovizza/Trieste 34149, Italy
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Fan S, Gao Y, Lai B, Elzinga EJ, Yu S. Aerosol iron speciation and seasonal variation of iron oxidation state over the western Antarctic Peninsula. Sci Total Environ 2022; 824:153890. [PMID: 35182624 DOI: 10.1016/j.scitotenv.2022.153890] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/07/2021] [Revised: 02/07/2022] [Accepted: 02/11/2022] [Indexed: 06/14/2023]
Abstract
The iron (Fe) speciation and oxidation state have been considered critical factors affecting Fe solubility in the atmosphere and bioavailability in the surface ocean. In this study, elemental composition and Fe speciation in aerosol samples collected at the Palmer Station in the West Antarctic Peninsula were determined using synchrotron-based X-ray fluorescence (XRF) and X-ray Absorption Near-Edge Structure (XANES) spectroscopy. The elemental composition of coarse-mode (>1 μm) Fe-containing particles suggests that the region's crustal emission is the primary source of aerosol Fe. The Fe minerals in these aerosol particles were predominantly hematite and biotite, but minor fractions of pyrite and ilmenite were observed as well. The Fe oxidation state showed an evident seasonal variation. The Fe(II) content accounted for 71% of the total Fe in the austral summer, while this fraction dropped to 60% in the austral winter. Multivariate linear models involving meteorological parameters suggested that the wind speed, relative humidity, and solar irradiance were the factors that significantly controlled the percentage of Fe(II) in the austral summer. On the contrary, no relationship was found between these factors and the Fe(II) percentage in the austral winter, suggesting that atmospheric photoreduction and regional dust emission were limited. Moreover, the snow depth was significantly (p < 0.05) correlated with the aerosol Fe concentration, confirming the limiting effect of snow/ice cover on the regional dust emission. Given that the Antarctic Peninsula has experienced rapid warming during recent decades, the ice-free areas in the Antarctic Peninsula may act as potential dust sources.
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Affiliation(s)
- Songyun Fan
- Department of Earth and Environmental Sciences, Rutgers University, Newark, NJ 07102, USA
| | - Yuan Gao
- Department of Earth and Environmental Sciences, Rutgers University, Newark, NJ 07102, USA.
| | - Barry Lai
- Advanced Photon Source, Argonne National Laboratory, Argonne, IL 60439, USA
| | - Evert J Elzinga
- Department of Earth and Environmental Sciences, Rutgers University, Newark, NJ 07102, USA
| | - Shun Yu
- Department of Earth and Environmental Sciences, Rutgers University, Newark, NJ 07102, USA
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Zhang J, Coker VS, Mosselmans JFW, Shaw S. Adsorption of octahedral mono-molybdate and poly-molybdate onto hematite: A multi-technique approach. J Hazard Mater 2022; 431:128564. [PMID: 35359098 DOI: 10.1016/j.jhazmat.2022.128564] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/15/2021] [Revised: 01/31/2022] [Accepted: 02/22/2022] [Indexed: 06/14/2023]
Abstract
Molybdenum (Mo) is a key trace element and a contaminant in many environments including mine tailings and acid mine drainage systems. Under oxic conditions Mo exists in a number of forms, including mono-molybdate (Mo(VI)O42-) and various poly-molybdate species (e.g. Mo(VI)7O246-) depending on the geochemical conditions (e.g. pH). The mobility and bioavailability of Mo is often controlled by sorption to mineral surfaces, including iron (oxyhydr)oxides e.g. hematite (Fe2O3). This study uses adsorption isotherms, PHREEQC geochemical modeling, Attenuated Total Reflection-Fourier Transform Infrared Spectroscopy (ATR-FTIR), and X-ray Absorption Spectroscopy (XAS) to holistically characterise the molecular scale adsorption of molybdate to hematite as a function of pH (3-12) and Mo(VI) concentration (0.01 × 10-4 - 2 × 10-3 M). PHREEQC and ATR-FTIR indicated both pH and Mo concentration are important variables when forming mono- vs. poly- molybdate and suggest low pH (≤ 4) and high Mo(VI) concentration (≥ 5 × 10-4 M) contribute to the formation of a poly-molybdate surface species on the hematite surface. XAS found Mo adsorbed to hematite via an inner-sphere corner-sharing bidentate binuclear complex with an octahedral mono-molybdate structure at a Mo concentration of 0.6 × 10-4 M across the pH range, and at a Mo(VI) concentration of 5 × 10-4 M and pH over 5. This is the first direct observation of octahedrally coordinated Mo(VI) adsorption species on hematite, and this information has broad implications for the mobility and transport of Mo as a contaminant in the environment.
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Affiliation(s)
- Jing Zhang
- Williamson Research Centre for Molecular Environmental Science, Department of Earth and Environmental Sciences, The University of Manchester, Manchester M13 9PL, UK
| | - Victoria S Coker
- Williamson Research Centre for Molecular Environmental Science, Department of Earth and Environmental Sciences, The University of Manchester, Manchester M13 9PL, UK
| | - J Frederick W Mosselmans
- Diamond Light Source Ltd., Diamond House, Harwell Science and Innovation Campus, Didcot, Oxfordshire OX11 0DE, UK
| | - Samuel Shaw
- Williamson Research Centre for Molecular Environmental Science, Department of Earth and Environmental Sciences, The University of Manchester, Manchester M13 9PL, UK.
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48
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Ribeiro Santos-Rasera J, Giovanini de Lima R, Santos Alves D, Teresa Rosim Monteiro R, Wallace Pereira de Carvalho H. X-ray spectrometry imaging and chemical speciation assisting to understand the toxic effects of copper oxide nanoparticles on zebrafish ( Danio rerio). Nanotoxicology 2022; 16:645-657. [PMID: 36260497 DOI: 10.1080/17435390.2022.2133646] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Currently, copper nanoparticles are used in various sectors of industry, agriculture, and medicine. To understand the effects induced by these nanoparticles, it is necessary to assess the environmental risk and safely expand their use. In this study, we evaluated the toxicity of copper oxide (nCuO) nanoparticles in Danio rerio adults, their distribution/concentration, and chemical form after exposure. This last assessment had never been performed on copper-exposed zebrafish. Such evaluation was done through the characterization of nCuO, acute exposure tests and analysis of distribution and concentration by microstructure X-ray fluorescence spectroscopy (µ-XRF) and atomic absorption spectroscopy (GF-AAS). Synchrotron X-ray absorption spectroscopy (XAS) was performed to find out the chemical form of copper in hotspots. The results show that the toxicity values of fish exposed to nCuO were 2.4 mg L-1 (25 nm), 12.36 mg L-1 (40 nm), 149.03 mg L-1 (80 nm) and 0.62 mg L-1 (CuSO4, used as a positive control). The total copper found in the fish was in the order of mg kg-1 and it was not directly proportional to the exposure concentration; most of the copper was concentrated in the gastric system. However, despite the existence of copper hotspots, chemical transformation of CuO into other compounds was not detected.
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Affiliation(s)
- Joyce Ribeiro Santos-Rasera
- Laboratory of Nuclear Instrumentation (LIN), Center for Nuclear Energy in Agriculture (CENA), University of São Paulo (USP), Piracicaba, Brazil
| | - Rafael Giovanini de Lima
- Laboratory of Nuclear Instrumentation (LIN), Center for Nuclear Energy in Agriculture (CENA), University of São Paulo (USP), Piracicaba, Brazil
| | - Dejane Santos Alves
- Universidade Tecnológica Federal do Paraná, Campus Santa Helena, Prolongamento da Rua São Luis S/N, Santa Helena, Brazil
| | - Regina Teresa Rosim Monteiro
- Laboratory of Ecotoxicology, Center for Nuclear Energy in Agriculture (CENA), University of São Paulo (USP), Piracicaba, Brazil
| | - Hudson Wallace Pereira de Carvalho
- Laboratory of Nuclear Instrumentation (LIN), Center for Nuclear Energy in Agriculture (CENA), University of São Paulo (USP), Piracicaba, Brazil
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Luo PC, Tu YJ, Chan TS, Zhu J, Duan YP, Sun TT, Zhang ZB. Adsorptive behavior of thallium using Fe 3O 4-kaolin composite synthesized by a room temperature ferrite process. Chemosphere 2022; 296:133899. [PMID: 35134399 DOI: 10.1016/j.chemosphere.2022.133899] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/19/2021] [Revised: 01/21/2022] [Accepted: 02/04/2022] [Indexed: 06/14/2023]
Abstract
Thallium (Tl) contaminants pose serious threats to the ecological environment and human health due to its acute/chronic poisoning on the health of most organisms even at low concentrations. To find a rapid and efficient technology in removing Tl from waters thus becomes a crucial issue. A magnetic Fe3O4-kaolin composite (denoted by FKC) with high specific surface area (133.7 m2/g) was successfully synthesized via a simple and low-cost technique for Tl(I) removing from various water media. The HRTEM images confirmed the existence of lattice fingers Fe3O4 and displayed that a large number of Fe3O4 nanoparticles dispersed on the surface of kaolin sheets. Compared with kaolin or Fe3O4 alone, FKC enhanced obviously the adsorption rate and capacity of Tl(I) over a wide pH range (4.5-9.0). The maximum adsorption capacity of FKC for Tl(I) was 19,347 mg/kg (calculated by Langmuir model), which was almost one hundred times and two times higher than those of kaolin and Fe3O4, respectively. Importantly, FKC was observed to have a great potential in removing Tl(I) from surface water, groundwater, and tap water in more alkaline conditions. By applying the external magnetic field, FKC could be recovered efficiently (99%) and rapidly (20 s). Moreover, Tl L3-edge XANES spectra revealed that Tl(I) was adsorbed on the FKC and would not be converted to more toxic Tl(III). The cations (CaCl2, NaCl, and KCl) and the ionic strength with concentrations of 0.001-1.0 mol/L showed a great influence on the adsorption of Tl(I) by FKC, implying that this adsorption was dominated by outer-sphere surface complexation at investigated pH values. The information provided is essential for designing a rapid and effective scavenger for removing Tl in various natural waters.
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Affiliation(s)
- Peng-Cheng Luo
- School of Environmental and Geographical Sciences, Shanghai Normal University, No. 100, Guilin Rd, Shanghai, 200234, China
| | - Yao-Jen Tu
- School of Environmental and Geographical Sciences, Shanghai Normal University, No. 100, Guilin Rd, Shanghai, 200234, China; Yangtze River Delta Urban Wetland Ecosystem National Field Observation and Research Station, Shanghai Normal University, No. 100, Guilin Rd, Shanghai, 200234, China; Institute of Urban Study, Shanghai Normal University, No. 100, Guilin Rd, Shanghai, 200234, China.
| | - Ting-Shan Chan
- National Synchrotron Radiation Research Center, No. 101, Hsin-Ann Rd, Hsincho, 30076, Taiwan
| | - Jian Zhu
- School of Environmental and Geographical Sciences, Shanghai Normal University, No. 100, Guilin Rd, Shanghai, 200234, China; Yangtze River Delta Urban Wetland Ecosystem National Field Observation and Research Station, Shanghai Normal University, No. 100, Guilin Rd, Shanghai, 200234, China.
| | - Yan-Ping Duan
- School of Environmental and Geographical Sciences, Shanghai Normal University, No. 100, Guilin Rd, Shanghai, 200234, China; Yangtze River Delta Urban Wetland Ecosystem National Field Observation and Research Station, Shanghai Normal University, No. 100, Guilin Rd, Shanghai, 200234, China; Institute of Urban Study, Shanghai Normal University, No. 100, Guilin Rd, Shanghai, 200234, China
| | - Ting-Ting Sun
- School of Environmental and Geographical Sciences, Shanghai Normal University, No. 100, Guilin Rd, Shanghai, 200234, China
| | - Zhi-Bo Zhang
- School of Environmental and Geographical Sciences, Shanghai Normal University, No. 100, Guilin Rd, Shanghai, 200234, China
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Monged MHE, Imam NG, Aquilanti G, Pollastri S, Rashad AM, Osán J. Heavy metals concentrations and speciation of Pb and Ni in airborne particulate matter over two residential sites in Greater Cairo - reflection from synchrotron radiation. J Synchrotron Radiat 2022; 29:765-774. [PMID: 35511009 PMCID: PMC9070700 DOI: 10.1107/s1600577522003058] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/21/2021] [Accepted: 03/20/2022] [Indexed: 06/14/2023]
Abstract
Synchrotron radiation-based techniques [X-ray absorption near-edge structure (XANES) and X-ray fluorescence (XRF)] combined with inductively coupled plasma-mass spectrometry (ICP-MS) were used for the assessment of heavy metals concentrations as well as lead (Pb) and nickel (Ni) speciation in airborne particulate matter (PM10) over two residential sites in Greater Cairo. Nineteen 24 h high-volume samples collected at Giza (G) Square and Helwan (H) University (Egypt) were selected for this study. Mean concentrations of heavy metals in PM10 at both sites were found to have the same descending order of Pb > Cu > Ni > Cd > Co > As, of which concentrations of Pb, Cu, Ni and Cd in H samples were higher than those in G samples. For Pb, synchrotron-based XRF results were in good agreement with concentrations obtained by ICP-MS. The XANES spectra of PM10 at the Pb L2-edge and Ni K-edge were compared with those of Pb and Ni in model standard compounds to provide information on the potential oxidation states as well as the chemical forms of those elements. The data show that Pb has similar chemical environments in both series G and H with the predominance of Pb2+ oxidation state. Nickel was found as Ni(OH)2, NiO and Ni metal in the analyzed samples. However, the content of Ni in the background filter shows a very strong interference with that of the collected PM10. Carcinogenic and non-carcinogenic risks resulting from the inhalation of the studied heavy metals were assessed for children and adult residents and were found below the safe limits, at both sites.
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Affiliation(s)
- Mohamed H. E. Monged
- Department of Siting and Environment, Nuclear and Radiological Safety Research Center (NRSRC), Egyptian Atomic Energy Authority (EAEA), Cairo 11762, Egypt
| | - N. G. Imam
- Experimental Nuclear Physics Department (Solid State Laboratory), Nuclear Research Center (NRC), Egyptian Atomic Energy Authority (EAEA), Cairo 13759, Egypt
| | - Giuliana Aquilanti
- Elettra Sincrotrone Trieste, Strada Statale 14, km 163.5 in AREA Science Park, Basovizza, Trieste 34149, Italy
| | - Simone Pollastri
- Elettra Sincrotrone Trieste, Strada Statale 14, km 163.5 in AREA Science Park, Basovizza, Trieste 34149, Italy
| | - A. M. Rashad
- Accelerators and Ion Sources Department, Nuclear Research Center (NRC), Egyptian Atomic Energy Authority (EAEA), PO 13759, Abu Zaabal, Cairo 11762, Egypt
- Central Laboratory for Elemental and Isotopic Analysis, Nuclear Research Center (NRC), Egyptian Atomic Energy Authority (EAEA), PO 13759, Abu Zaabal, Cairo, Egypt
| | - János Osán
- Centre for Energy Research, Konkoly Thege M. út 29–33, 1121 Budapest, Hungary
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