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Miyagawa M, Oshiro K, Nishimura S, Takaba H. Hydrophilicity of Organically Modified Montmorillonite and Effect on Benzene Adsorption by the Molecular Dynamics Method. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2024; 40:6506-6514. [PMID: 38467493 DOI: 10.1021/acs.langmuir.4c00109] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/13/2024]
Abstract
Interlayer modification of layered materials with organocations has been known to endow the nanocomposite with hydrophobicity, and adsorption of aromatic compounds in the aqueous phase has been investigated for decades by using montmorillonite, a representative layered clay mineral, as the host material. Usage of the organocation has been believed to be effective due to the π-π interaction with the aromatic adsorbate, the presence of which is not verified spectroscopically in the water-immersed state. Considering that the organocation is generally regarded as a pillar to keep the interlayer space, the interaction between the organocation and adsorbate has not yet been clarified sufficiently. In the present study, we revealed the role of the organocation by the molecular dynamics method, where tetramethylammonium (TMA) and trimethylphenylammonium (TMPA) ions were selected as the representative and simple organocations, and benzene was the adsorbate to exclude the effect of the substitution group. Both H2O and benzene molecules were introduced in the interlayer of TMA- or TMPA-modified montmorillonite to model the water-immersed adsorption structure. It was found that H2O is preferentially distributed on the clay surface, followed by the center of the interlayer when the amount of H2O is large. In the adsorption model, benzene was vertically adsorbed on the clay surface. Radial distribution function analysis revealed that benzene is distributed around both the methyl and the phenyl groups in the TMA and TMPA cations, but the orientation of the phenyl ring is not consistent with that of benzene. Thus, benzene was found not to form the π-π interaction in montmorillonite modified with the TMPA cations in the water-immersed state. Furthermore, the surface was partly covered with the phenyl group in the TMPA cation, decreasing the adsorption area. Therefore, the experimental suggestion that benzene is adsorbed on the clay surface was reproduced by our simulation, and the interaction between the organocation and benzene and surface occupancy should be paid attention to maximize the adsorption property.
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Affiliation(s)
- Masaya Miyagawa
- Department of Environmental Chemistry and Chemical Engineering, School of Advanced Engineering, Kogakuin University, 2665-1 Nakano, Hachioji, Tokyo 192-0015, Japan
| | - Kiwako Oshiro
- Department of Environmental Chemistry and Chemical Engineering, School of Advanced Engineering, Kogakuin University, 2665-1 Nakano, Hachioji, Tokyo 192-0015, Japan
| | - Shoma Nishimura
- Department of Environmental Chemistry and Chemical Engineering, School of Advanced Engineering, Kogakuin University, 2665-1 Nakano, Hachioji, Tokyo 192-0015, Japan
| | - Hiromitsu Takaba
- Department of Environmental Chemistry and Chemical Engineering, School of Advanced Engineering, Kogakuin University, 2665-1 Nakano, Hachioji, Tokyo 192-0015, Japan
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He K, Sun R, Yang D, Wang S, Shu J, Wan W, Pan Y, Qin F, He F, Liang L. Effect of sulfidation on nitrobenzene removal from groundwater by microscale zero-valent iron: Insights into reactivity, reaction sites and removal pathways. CHEMOSPHERE 2023; 310:136819. [PMID: 36241117 DOI: 10.1016/j.chemosphere.2022.136819] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/05/2022] [Revised: 09/19/2022] [Accepted: 10/06/2022] [Indexed: 06/16/2023]
Abstract
While it has been recognized that sulfidation can effectively improve the reactivity of microscale zero valent iron (mZVI), there is limited understanding of nitrobenzene (ArNO2) removal by sulfidated mZVI. To understand the reduction capacity and pathway of ArNO2 by sulfidated mZVI, ball-milling sulfidated mZVI (S-mZVIbm) with different S/Fe molar ratios (0-0.2) was used to conduct this experiment. The results showed that sulfidation could efficiently enhance ArNO2 removal under iron-limited and iron excess conditions, which was attributed to the presence of FeSx sites that could provide higher Fe(0) utilization efficiency and stronger passivation resisting for S-mZVIbm. The optimum ArNO2 reduction could be obtained by S-mZVIbm with S/Fe molar ratio at 0.1, which could completely transform ArNO2 to aniline (ArNH2) with a rate constant of 4.36 × 10-2 min-1 during 120-min reaction. FeSx phase could act as electron transfer sites for ArNO2 reduction and it could still be reserved in S-mZVIbm after reduction reaction. The product distribution indicated that sulfidation did not change the types of reduction products, while the removal of ArNO2 by S-mZVIbm was a step-by-step reduction progress along with the adsorption of ArNH2. In addition, a faster reduction of ArNO2 in groundwater/soil system further demonstrated the feasibility of S-mZVIbm in the real field remediation.
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Affiliation(s)
- Kai He
- College of Environment, Zhejiang University of Technology, Hangzhou, 310014, China
| | - Rui Sun
- College of Environment, Zhejiang University of Technology, Hangzhou, 310014, China
| | - Dezhi Yang
- College of Environment, Zhejiang University of Technology, Hangzhou, 310014, China
| | - Shuchen Wang
- College of Environment, Zhejiang University of Technology, Hangzhou, 310014, China
| | - Junjie Shu
- College of Environment, Zhejiang University of Technology, Hangzhou, 310014, China
| | - Wubo Wan
- Marine Food Engineering Technology Research Center of Hainan, Province, Hainan Tropical Ocean University, No.1 Yucai Road, Sanya, 572022, China
| | - Ying Pan
- College of Environment, Zhejiang University of Technology, Hangzhou, 310014, China
| | - Fengyang Qin
- College of Environment, Zhejiang University of Technology, Hangzhou, 310014, China
| | - Feng He
- College of Environment, Zhejiang University of Technology, Hangzhou, 310014, China.
| | - Liyuan Liang
- Department of Earth and Planetary Sciences, University of Tennessee, Knoxville, TN, 37996, United States
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Zhong W, Ye L, Du J, Jing C. Surface-Enhanced Infrared Absorption Spectroscopy for Analyzing Nucleophilic Molecules Using Ethylene Glycol Decorated TiO 2 Nanosheet. ACS APPLIED MATERIALS & INTERFACES 2022; 14:54313-54319. [PMID: 36417693 DOI: 10.1021/acsami.2c14829] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Surface-enhanced infrared absorption (SEIRA) spectroscopy has been developed for the nondestructive analysis of trace molecules. Herein, we found that ethylene glycol (EG) decorated TiO2 nanosheet exhibits a selective SEIRA effect for molecules with nucleophilic groups, such as -NH2 and -OH. The SEIRA effect was attributed to the chemical mechanism originating from the interactions between the surface EG and the analytes. The enhancement factor was negatively correlated with the electrophilicity index of the analytes (p = 0.004), and the noncovalent bond dominates the interactions between the analytes and EG. The charge distribution analysis revealed that the -CH2 groups of EG exposed on the TiO2 surface are positively charged, attracting the electron-rich groups of the analyte. This attraction concentrates the analyte, redistributes its charge, defines its molecular dipole moment, and thereby enhances the SEIRA effect. The insights gained from this study shed light on developing new SEIRA substrates and emphasized the critical role of surface ligands in SEIRA applications.
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Affiliation(s)
- Wen Zhong
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing100085, China
- University of Chinese Academy of Sciences, Beijing100049, China
| | - Li Ye
- Shandong Key Laboratory of Environmental Processes and Health, School of Environmental Science and Engineering, Shandong University, Qingdao266237, China
| | - Jingjing Du
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing100085, China
- University of Chinese Academy of Sciences, Beijing100049, China
| | - Chuanyong Jing
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing100085, China
- University of Chinese Academy of Sciences, Beijing100049, China
- Shandong Key Laboratory of Environmental Processes and Health, School of Environmental Science and Engineering, Shandong University, Qingdao266237, China
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Smith JA, Singh-Wilmot MA, Min Z, Carter KP, Gilbert S, Andrews MB, Ridenour JA, Cahill CL, Ley AN, Holman KT. Polymorphism from a 1:1 Ln:BTB Reaction Pot: Solvothermal versus Sonochemical Synthesis of Ln-MOFs. Inorganica Chim Acta 2022. [DOI: 10.1016/j.ica.2022.121299] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Synthesis of Metal–Organic Frameworks Quantum Dots Composites as Sensors for Endocrine-Disrupting Chemicals. Int J Mol Sci 2022; 23:ijms23147980. [PMID: 35887328 PMCID: PMC9324456 DOI: 10.3390/ijms23147980] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2022] [Revised: 07/10/2022] [Accepted: 07/12/2022] [Indexed: 11/17/2022] Open
Abstract
Hazardous chemical compounds such as endocrine-disrupting chemicals (EDCs) are widespread and part of the materials we use daily. Among these compounds, bisphenol A (BPA) is the most common endocrine-disrupting chemical and is prevalent due to the chemical raw materials used to manufacture thermoplastic polymers, rigid foams, and industrial coatings. General exposure to endocrine-disrupting chemicals constitutes a serious health hazard, especially to reproductive systems, and can lead to transgenerational diseases in adults due to exposure to these chemicals over several years. Thus, it is necessary to develop sensors for early detection of endocrine-disrupting chemicals. In recent years, the use of metal–organic frameworks (MOFs) as sensors for EDCs has been explored due to their distinctive characteristics, such as wide surface area, outstanding chemical fastness, structural tuneability, gas storage, molecular separation, proton conductivity, and catalyst activity, among others which can be modified to sense hazardous environmental pollutants such as EDCs. In order to improve the versatility of MOFs as sensors, semiconductor quantum dots have been introduced into the MOF pores to form metal–organic frameworks/quantum dots composites. These composites possess a large optical absorption coefficient, low toxicity, direct bandgap, formidable sensing capacity, high resistance to change under light and tunable visual qualities by varying the size and compositions, which make them useful for applications as sensors for probing of dangerous and risky environmental contaminants such as EDCs and more. In this review, we explore various synthetic strategies of (MOFs), quantum dots (QDs), and metal–organic framework quantum dots composites (MOFs@QDs) as efficient compounds for the sensing of ecological pollutants, contaminants, and toxicants such as EDCs. We also summarize various compounds or materials used in the detection of BPA as well as the sensing ability and capability of MOFs, QDs, and MOFs@QDs composites that can be used as sensors for EDCs and BPA.
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Pawlak F, Koziol K, Polkowska Z. Chemical hazard in glacial melt? The glacial system as a secondary source of POPs (in the Northern Hemisphere). A systematic review. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 778:145244. [PMID: 33832784 DOI: 10.1016/j.scitotenv.2021.145244] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/28/2020] [Revised: 01/13/2021] [Accepted: 01/13/2021] [Indexed: 05/24/2023]
Abstract
Toxicity of compounds belonging to persistent organic pollutants (POPs) is widely known, and their re-emission from glaciers has been conclusively demonstrated. However, the harmful effects associated with such secondary emissions have yet to be thoroughly understood, especially in the spatial and temporal context, as the existing literature has a clear sampling bias with the best recognition of sites in the European Alps. In this review, we elaborated on the hazards associated with the rapid melting of glaciers releasing organochlorine pesticides (OCPs), polychlorinated biphenyls (PCBs), polybrominated diphenyl ethers (PBDEs) and polycyclic aromatic hydrocarbons (PAHs). To this end, we collated knowledge on: (1) the varying glacier melt rate across the Northern Hemisphere, (2) the content of POPs in the glacial system components, including the less represented areas, (3) the mechanisms of POPs transfer through the glacial system, including the importance of immediate emission from snow melt, (4) risk assessment associated with POPs re-emission. Based on the limited existing information, the health risk of drinking glacial water can be considered negligible, but consuming aquatic organisms from these waters may increase the risk of cancer. Remoteness from emission sources is a leading factor in the presence of such risk, yet the Arctic is likely to be more exposed to it in the future due to large-scale processes shifting atmospheric pollution and the continuous supply of snow. For future risk monitoring, we recommend to explore the synergistic toxic effects of multiple contaminants and fill the gaps in the spatial distribution of data.
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Affiliation(s)
- Filip Pawlak
- Department of Analytical Chemistry, Chemical Faculty, Gdańsk University of Technology, G. Narutowicza 11/12, 80-233 Gdańsk, Poland
| | - Krystyna Koziol
- Department of Analytical Chemistry, Chemical Faculty, Gdańsk University of Technology, G. Narutowicza 11/12, 80-233 Gdańsk, Poland.
| | - Zaneta Polkowska
- Department of Analytical Chemistry, Chemical Faculty, Gdańsk University of Technology, G. Narutowicza 11/12, 80-233 Gdańsk, Poland
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8
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Sun H, Liu M, Fu X, Xin T, Wang Y, Wang S, Wang J, Diao Y, Yang F, Zhang T. Solvothermal Synthesis and Conformation Probe of Novel Europium Complex of Brønsted Acidic Ionic Liquid: 1,3‐
Bis
(1‐carboxylatoethyl)imidazolium Bromide. Z Anorg Allg Chem 2021. [DOI: 10.1002/zaac.202100058] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Huimin Sun
- Department of Chemistry Beijing Technology and Business University Beijing 100048 China
| | - Mengchen Liu
- Department of Chemistry Beijing Technology and Business University Beijing 100048 China
| | - Xiaofang Fu
- Department of Chemistry Beijing Technology and Business University Beijing 100048 China
| | - Tingting Xin
- Department of Chemistry Beijing Technology and Business University Beijing 100048 China
| | - Yibo Wang
- Department of Chemistry Beijing Technology and Business University Beijing 100048 China
| | - Si Wang
- Analysis and Test Center of Beijing University of Chemical Technology Beijing 100029 China
| | - Jing Wang
- School of Food and Health Beijing Technology and Business University Beijing 100048 China
| | - Yanyan Diao
- Beijing Key Laboratory of Ionic Liquids Clean Process Key Laboratory of Green Process and Engineering, Institute of Process Engineering, Chinese Academy of Sciences Beijing 100190 China
| | - Feifei Yang
- Beijing Key Laboratory of Ionic Liquids Clean Process Key Laboratory of Green Process and Engineering, Institute of Process Engineering, Chinese Academy of Sciences Beijing 100190 China
| | - Ting Zhang
- Department of Chemistry Beijing Technology and Business University Beijing 100048 China
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9
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Fellah M, Hezil N, Guerfi K, Djellabi R, Montagne A, Iost A, Borodin K, Obrosov A. Mechanistic pathways of cationic and anionic surfactants sorption by kaolinite in water. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2021; 28:7307-7321. [PMID: 33029773 DOI: 10.1007/s11356-020-11083-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/12/2020] [Accepted: 09/30/2020] [Indexed: 06/11/2023]
Abstract
Surfactants are widely used in many chemical industries and as primary components of cleaning detergents due to their specific characteristics, which in turn results in high pollution of domestic and industrial wastewaters by such substances. In this study, the mechanistic pathways of the adsorption of cationic benzyl-dimethyl-dodecyl ammonium bromide (BDDAB) and anionic sodium dodecyl sulfate (SDS) surfactants on kaolinite clay in water were investigated. The results showed that the adsorption of anionic surfactant (SDS) on kaolinite is better compared with cationic surfactant (BDDAB), wherein the ♦maximum adsorption capacity was found 161.4 μmol g-1 and 234 μmol g-1 for BDDAB and SDS, respectively. Adsorption kinetics were the best suited to pseudo-second-order model for both BDDAB and SDS with an adsorption rate constant of 0.028 g μmol-1 min-1 and 0.023 g μmol-1 min-1, respectively. Meanwhile, the adsorption of BDDAB by kaolinite showed that the isotherm adsorption tended to follow the Langmuir-Freundlich and Freundlich isotherm models. However, the SDS adsorption isotherm obeyed only the Langmuir-Freundlich model.
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Affiliation(s)
- Mamoun Fellah
- Mechanical Engineering Department, ABBES Laghrour-University, P.O 1252, 40004, Khenchela, Algeria.
- Tribology and Materials Group, Laboratory of Foundry, Badji Mokhtar University, B. O, 12 CP, 23000, Annaba, Algeria.
| | - Naouel Hezil
- Matter Sciences Department, ABBES Laghrour - University, P.O 1252, 40004, Khenchela, Algeria
- Advanced Materials Engineering and Sciences Laboraory, P.O 1252, 40004, Khenchela, Algeria
| | - Kamel Guerfi
- Laboratory of Water Treatment and valorization of the Industrial, Badji Mokhtar University, B. O, 12 CP, 23000, Annaba, Algeria
| | - Ridha Djellabi
- Department of Environmental Engineering, College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen, 518055, People's Republic of China
| | - Alex Montagne
- Laboratory of Mechanics Surfaces and Materials Processing, ARTS ET METIERS ParisTech, 8, Boulevard Louis XIV, 59046, Lille Cedex, France
| | - Alain Iost
- Laboratory of Mechanics Surfaces and Materials Processing, ARTS ET METIERS ParisTech, 8, Boulevard Louis XIV, 59046, Lille Cedex, France
| | - Kirill Borodin
- M. N. Mikheev Institute of Metal Physics, Ural Branch of the Russian Academy of Sciences, 18 S. Kovalevskoi Str., Ekaterinburg, Russian Federation, 620108
- Ural Federal University, 19 Mira Str., Yekaterinburg, Russian Federation, 620002
| | - Aleksei Obrosov
- Department of Physical Metallurgy and Materials Technology, Brandenburg Technical University, 03046, Cottbus, Germany
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10
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Yuan Q, Sallach JB, Rhodes G, Bach A, Crawford R, Li H, Johnston CT, Teppen BJ, Kaminski NE, Boyd SA. Natural organic matter does not diminish the mammalian bioavailability of 2,3,7,8-tetrachlorodibenzo-p-dioxin. CHEMOSPHERE 2021; 264:128420. [PMID: 33032214 PMCID: PMC7749823 DOI: 10.1016/j.chemosphere.2020.128420] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/25/2020] [Revised: 08/21/2020] [Accepted: 09/20/2020] [Indexed: 06/11/2023]
Abstract
2,3,7,8-tetrachlorodibenzo-p-dioxin (TCDD) is a toxic and persistent organic pollutant found in soils and sediments. It has been linked to several adverse health outcomes in humans and wildlife, including suppression of the immune system. TCDD is strongly sorbed to soils/sediments due to its extremely low water solubility. Presently, the bioavailability of soil/sediment-sorbed TCDD to mammals is not completely understood. Our previous studies demonstrated that TCDD adsorbed to representative inorganic geosorbents (i.e. porous silica and smectite clay) exhibited the same bioavailability to mice as TCDD dissolved in corn oil, whereas sequestration by activated carbons eliminated TCDD bioavailability. In this study, we evaluated the effects of amorphous natural organic matter (NOM), primarily in the form of aquatic humic and fulvic acids, on the mouse bioavailability of TCDD. An aqueous suspension of TCDD mixed with NOM was administered to mice via oral gavage. The relative bioavailability of TCDD was assessed by two sensitive aryl hydrocarbon receptor-mediated responses in mice: 1) hepatic induction of cyp1A1 mRNA; and 2) suppression of immunoglobulin M (IgM) antibody-forming cell (AFC) response which is an indicator of immunotoxicity. Hepatic induction of cyp1A1 mRNA and suppression of IgM AFC induced by TCDD were similar in the NOM-sorbed form and dissolved in corn oil, revealing no loss of bioavailability when associated with NOM. Hence, NOM-associated TCDD is as capable of suppressing humoral immunity in mice as TCDD dissolved in corn oil, indicating that NOM-sorbed TCDD is likely to fully retain its bioavailability to mammals and, by inference, humans.
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Affiliation(s)
- Qi Yuan
- Department of Microbiology and Immunology, Creighton University, Omaha, NE, 68178, USA
| | - J Brett Sallach
- Department of Environment and Geography, University of York, Heslington, York, YO10 5NG, United Kingdom.
| | - Geoff Rhodes
- Department of Plant, Soil, and Microbial Sciences, Michigan State University, East Lansing, MI, 48824, USA
| | - Anthony Bach
- Institute for Integrative Toxicology, Michigan State University, East Lansing, MI, 48824, USA
| | - Robert Crawford
- Institute for Integrative Toxicology, Michigan State University, East Lansing, MI, 48824, USA
| | - Hui Li
- Department of Plant, Soil, and Microbial Sciences, Michigan State University, East Lansing, MI, 48824, USA
| | - Cliff T Johnston
- Crop, Soil, and Environmental Science, Purdue University, West Lafayette, IN, 47907, USA
| | - Brian J Teppen
- Department of Plant, Soil, and Microbial Sciences, Michigan State University, East Lansing, MI, 48824, USA
| | - Norbert E Kaminski
- Institute for Integrative Toxicology, Michigan State University, East Lansing, MI, 48824, USA; Department of Pharmacology and Toxicology, Michigan State University, East Lansing, MI, 48824, USA; Center for Research on Ingredient Safety, Michigan State University, East Lansing, MI, 48824, USA
| | - Stephen A Boyd
- Department of Plant, Soil, and Microbial Sciences, Michigan State University, East Lansing, MI, 48824, USA
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Xiao X, Ma XL, Wang LG, Long F, Li TT, Zhou XT, Liu H, Wu LJ, Yu HQ. Anaerobic reduction of high-polarity nitroaromatic compounds by electrochemically active bacteria: Roles of Mtr respiratory pathway, molecular polarity, mediator and membrane permeability. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2021; 268:115943. [PMID: 33158624 DOI: 10.1016/j.envpol.2020.115943] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/06/2020] [Revised: 10/22/2020] [Accepted: 10/26/2020] [Indexed: 06/11/2023]
Abstract
Electrochemically active bacteria (EAB) are effective for the bioreduction of nitroaromatic compounds (NACs), but the exact reduction mechanisms are unclear yet. Therefore, 3-nitrobenzenesulfonate (NBS) was used to explore the biodegradation mechanism of NACs by EAB. Results show that NBS could be anaerobically degraded by Shewanella oneidensis MR-1. The generation of aminoaromatic compounds was accompanied with the NBS reduction, indicating that NBS was biodegraded via reductive approach by S. oneidensis MR-1. The impacts of NBS concentration and cell density on the NBS reduction were evaluated. The removal of NBS depends mainly on the transmembrane electron transfer of S. oneidensis MR-1. Impairment of Mtr respiratory pathway was found to mitigate the reduction of NBS, suggesting that the anaerobic biodegradation of NBS occurred extracellularly. Knocking out cymA severely impaired the extracellular reduction ability of S. oneidensis MR-1. However, the phenotype of ΔcymA mutant could be compensated by the exogenous electron mediators, implying the trans-outer membrane diffusion of mediators into the periplasmic space. This work provides a new insight into the anaerobic reduction of aromatic contaminants by EAB.
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Affiliation(s)
- Xiang Xiao
- Information Materials and Intelligent Sensing Laboratory of Anhui Province, Institutes of Physical Science and Information Technology, Anhui University, Hefei, 230601, China; School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang, 212013, China
| | - Xiao-Lin Ma
- School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang, 212013, China
| | - Lu-Guang Wang
- Department of Biological and Ecological Engineering, Oregon State University, Corvallis, OR, 97333, USA
| | - Fei Long
- Department of Biological and Ecological Engineering, Oregon State University, Corvallis, OR, 97333, USA
| | - Ting-Ting Li
- School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang, 212013, China
| | - Xiang-Tong Zhou
- School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang, 212013, China
| | - Hong Liu
- Department of Biological and Ecological Engineering, Oregon State University, Corvallis, OR, 97333, USA
| | - Li-Jun Wu
- Information Materials and Intelligent Sensing Laboratory of Anhui Province, Institutes of Physical Science and Information Technology, Anhui University, Hefei, 230601, China
| | - Han-Qing Yu
- Information Materials and Intelligent Sensing Laboratory of Anhui Province, Institutes of Physical Science and Information Technology, Anhui University, Hefei, 230601, China; CAS Key Laboratory of Urban Pollutant Conversion, Department of Environmental Science and Engineering, University of Science and Technology of China, Hefei, 230026, China.
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12
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Willemsen JAR, Bourg IC. Molecular dynamics simulation of the adsorption of per- and polyfluoroalkyl substances (PFASs) on smectite clay. J Colloid Interface Sci 2020; 585:337-346. [PMID: 33302050 DOI: 10.1016/j.jcis.2020.11.071] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2020] [Revised: 11/06/2020] [Accepted: 11/19/2020] [Indexed: 11/30/2022]
Abstract
Molecular dynamics (MD) simulations are used to predict the partitioning of per- and polyfluoroalkyl substances (PFASs) to smectite clay, a high surface area adsorbent ubiquitous in temperate soils. Simulated systems model a stack of flexible smectite lamellae in contact with a bulk aqueous reservoir containing PFAS molecules. Perfluorobutanesulfonic acid (PFBS), perfluorohexanesulfonic acid (PFHxS), and perfluorooctanesulfonic acid (PFOS) are simulated at various aqueous chemistry conditions to examine the effect of PFAS size, salinity, and coordinating cation type (K+, Na+, and Ca2+) on adsorption. The metadynamics technique is employed to facilitate the exploration of the simulation cell and to reconstruct the underlying free energy landscape. Adsorption is favorable on the hydrophobic domains of the external basal surfaces with the fluorinated chain adopting a flat orientation on the surface. Analysis of the adsorption energetics reveals large favorable entropic contributions to adsorption. The enthalpy of adsorption is unfavorable, though much less so in the presence of Ca2+ due to stabilizing 'lateral cation bridging' interactions between divalent cations and PFAS sulfonate head groups. Overall, this research advances the mechanistic understanding of PFAS-smectite interactions and provides new insights that could help inform fate and transport models and the development of adsorbents and remediation techniques.
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Affiliation(s)
- Jennifer A R Willemsen
- Department of Civil & Environmental Engineering and High Meadows Environmental Institute, Princeton University, Princeton, NJ 08544, United States.
| | - Ian C Bourg
- Department of Civil & Environmental Engineering and High Meadows Environmental Institute, Princeton University, Princeton, NJ 08544, United States
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13
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Zhang N, Li B, Wang X, Liu D, Han X, Bai F, Xing Y. High-efficiency fluorescent probe constructed by triazine polycarboxylic acid for detecting nitro compounds. Inorganica Chim Acta 2020. [DOI: 10.1016/j.ica.2020.119591] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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14
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Chen YQ, Cao C, Tian Y, Liu SJ, Qu XY, Zhang XZ, Gao Q, Zhong M. Three Cd(II)-based luminescent metal-organic frameworks constructed from the mixed-ligand strategy for highly selective detection of nitrobenzene. J SOLID STATE CHEM 2020. [DOI: 10.1016/j.jssc.2020.121314] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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15
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Chang YT, Chao WL, Chen HY, Li H, Boyd SA. Characterization of a Sequential UV Photolysis-Biodegradation Process for Treatment of Decabrominated Diphenyl Ethers in Sorbent/Water Systems. Microorganisms 2020; 8:E633. [PMID: 32349399 PMCID: PMC7284435 DOI: 10.3390/microorganisms8050633] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2020] [Revised: 04/23/2020] [Accepted: 04/26/2020] [Indexed: 12/26/2022] Open
Abstract
Decabrominated diphenyl ether (BDE-209) is a primary component of the brominated flame retardants used in a variety of industrial and domestic applications. BDE-209 bioaccumulates in aquatic organisms and has been identified as an emerging contaminant that threatens human and ecosystem health. Sequential photolysis-microbial biodegradation processes were utilized here to treat BDE-209 in clay- or soil-water slurries. The removal efficiency of BDE-209 in the clay-water slurries was high; i.e., 96.5%, while that in the soil-water slurries was minimal. In the clay-water slurries the first order rate constants for the UV photolysis and biodegradation of BDE-209 were 0.017 1/day and 0.026 1/day, respectively. UV wavelength and intensity strongly influenced the BDE-209 photolysis and the subsequent biodegradation of photolytic products. Facultative chemotrophic bacteria, including Acidovorax spp., Pseudomonas spp., Novosphingobium spp. and Sphingomonas spp., were the dominant members of the bacterial community (about 71%) at the beginning of the biodegradation; many of these organisms have previously been shown to biodegrade BDE-209 and other polybrominated diphenyl ether (PBDE) congeners. The Achromobacter sp. that were isolated (NH-2; NH-4; NH-6) were especially effective during the BDE-209 degradation. These results indicated the effectiveness of the sequential UV photolysis and biodegradation for treating certain BDE-209-contaminated solids; e.g., clays; in bioreactors containing such solids as aqueous slurries. Achieving a similar treatment effectiveness for more heterogeneous solids containing natural organic matter, e.g., surface solids, appears to be significantly more difficult. Further investigations are needed in order to understand the great difference between the clay-water or soil-water slurries.
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Affiliation(s)
- Yi-Tang Chang
- Department of Microbiology, Soochow University, Shilin District, Taipei 11102, Taiwan; (W.-L.C.); (H.-Y.C.)
- Department of Plant, Soil and Microbial Science, Michigan State University, East Lansing, MI 48824, USA;
| | - Wei-Liang Chao
- Department of Microbiology, Soochow University, Shilin District, Taipei 11102, Taiwan; (W.-L.C.); (H.-Y.C.)
| | - Hsin-Yu Chen
- Department of Microbiology, Soochow University, Shilin District, Taipei 11102, Taiwan; (W.-L.C.); (H.-Y.C.)
| | - Hui Li
- Department of Plant, Soil and Microbial Science, Michigan State University, East Lansing, MI 48824, USA;
| | - Stephen A. Boyd
- Department of Plant, Soil and Microbial Science, Michigan State University, East Lansing, MI 48824, USA;
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16
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An Unusual Luminescent Mo/S/Cu Cluster-Based Metal–Organic Framework for Efficient Detection of TNP. J CLUST SCI 2020. [DOI: 10.1007/s10876-020-01786-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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17
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Zhao J, Yang X, Liang G, Wang Z, Li S, Wang Z, Xie X. Effective removal of two fluoroquinolone antibiotics by PEG-4000 stabilized nanoscale zero-valent iron supported onto zeolite (PZ-NZVI). THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 710:136289. [PMID: 31923667 DOI: 10.1016/j.scitotenv.2019.136289] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/21/2019] [Revised: 12/02/2019] [Accepted: 12/21/2019] [Indexed: 04/15/2023]
Abstract
In this work, nanoscale zero-valent iron (NZVI) was synthesized via liquid phase reduction method with surfactant polyethylene glycol (PEG-4000) modified and supported onto zeolite to prepare PZ-NZVI composite. SEM-EDS, XPS, BET.etc. characterizations indicated that the sphere NZVI particles were loaded on the zeolite successfully and the aggregation was restrained. The adsorption performance of PZ-NZVI for norfloxacin (NOR) or ofloxacin (OFL), two typical fluoroquinolones (FQs), from water was conducted. The equilibrium studies were demonstrated using Langmuir, Freundlich, Temkin and Elovich isotherms and better agreement was attained with the Temkin model. Compared with NZVI and zeolite, PZ-NZVI had higher FQs removal efficiency, and the Langmuir maximum adsorption capacity was 54.67 mg g-1 (NOR) and 48.88 mg g-1 (OFL). The kinetic parameters displayed that two FQs adsorption onto PZ-NZVI followed pseudo-second-order kinetic model. The thermodynamic analysis suggested the adsorption process was spontaneous and exothermic. In addition, the adsorption tests were executed at different influence factors and the adsorbent PZ-NZVI was suitable for a wide pH range (4-10) with the FQs (10 mg L-1) removal efficiency above 90% in 1 h. Furthermore, it was found that PZ-NZVI can be effortlessly separated from mixed solutions using external magnetic field. Finally, the process of FQs adsorbed onto PZ-NZVI was attributed to the surface complexion (forming bidentate complexes), hydrophobic interaction, pore filling and electrostatic interaction.
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Affiliation(s)
- Jing Zhao
- College of Earth and Environmental Sciences, Lanzhou University, Lanzhou, Key Laboratory for Environmental Pollution Prediction and Control, Gansu Province 730000, China
| | - Xing Yang
- College of Earth and Environmental Sciences, Lanzhou University, Lanzhou, Key Laboratory for Environmental Pollution Prediction and Control, Gansu Province 730000, China
| | - Guiwei Liang
- College of Earth and Environmental Sciences, Lanzhou University, Lanzhou, Key Laboratory for Environmental Pollution Prediction and Control, Gansu Province 730000, China
| | - Zhaowei Wang
- College of Earth and Environmental Sciences, Lanzhou University, Lanzhou, Key Laboratory for Environmental Pollution Prediction and Control, Gansu Province 730000, China.
| | - Shan Li
- College of Earth and Environmental Sciences, Lanzhou University, Lanzhou, Key Laboratory for Environmental Pollution Prediction and Control, Gansu Province 730000, China
| | - Zirun Wang
- College of Earth and Environmental Sciences, Lanzhou University, Lanzhou, Key Laboratory for Environmental Pollution Prediction and Control, Gansu Province 730000, China
| | - Xiaoyun Xie
- College of Earth and Environmental Sciences, Lanzhou University, Lanzhou, Key Laboratory for Environmental Pollution Prediction and Control, Gansu Province 730000, China
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18
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Tsai MJ, Li CY, Wu JY. A highly stable luminescent coordination polymer for sensing of volatile iodine and its metal-ion exchange properties with Cu2+ ions. J Photochem Photobiol A Chem 2020. [DOI: 10.1016/j.jphotochem.2019.112256] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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19
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Chen S, Sheng X, Qin C, Waigi MG, Gao Y. Glomalin-related soil protein enhances the sorption of polycyclic aromatic hydrocarbons on cation-modified montmorillonite. ENVIRONMENT INTERNATIONAL 2019; 132:105093. [PMID: 31470216 DOI: 10.1016/j.envint.2019.105093] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/27/2019] [Revised: 08/07/2019] [Accepted: 08/10/2019] [Indexed: 06/10/2023]
Abstract
This study investigated the sorption of phenanthrene (as a representative PAH) by cation-modified montmorillonites (Ca-MMT and Fe-MMT) under the influence of Glomalin-related soil protein (GRSP) fractions (EE-GRSP and T-GRSP). Batch sorption studies were carried out as a function of GRSP concentrations (0-500 mg/L), results suggested that the sorption capacities of Ca-MMT and Fe-MMT for phenanthrene were greatly enhanced. The phenanthrene sorption isotherms were in good agreement with the Linear and Freundlich models (R2 = 0.886-0.999). The Kd values increased from 4.14 to 60.76 L/kg for Ca-MMT and from 15.57 to 153.80 L/kg for Fe-MMT with the GRSP concentrations adding from 0 to 500 mg/L, respectively. Furthermore, the sorption of phenanthrene was higher on Fe-MMT than that on Ca-MMT. It is believed that GRSP developed a higher sorption level on Fe-MMT, resulting in higher phenanthrene sorption. Microscopic and Spectroscopic analyses confirmed that the effects of GRSP on phenanthrene sorption were attributed to the changes in the surface structure and the hydrophobic property of montmorillonites. In the sorption process, GRSP may sorb onto montmorillonites through cation-π interaction when a bridge linkage was formed, and phenanthrene bound with GRSP mainly via π-π electron donor-accepter interaction. The findings could provide an in-depth understanding of the ecological functions of GRSP and provide new insights into the pathways of PAH transport and fate in the contaminated fields.
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Affiliation(s)
- Shuang Chen
- Institute of Organic Contaminant Control and Soil Remediation, College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing 210095, China
| | - Xue Sheng
- Institute of Organic Contaminant Control and Soil Remediation, College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing 210095, China
| | - Chao Qin
- Institute of Organic Contaminant Control and Soil Remediation, College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing 210095, China
| | - Michael Gatheru Waigi
- Institute of Organic Contaminant Control and Soil Remediation, College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing 210095, China
| | - Yanzheng Gao
- Institute of Organic Contaminant Control and Soil Remediation, College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing 210095, China.
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20
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Andrade MVF, Santos FR, Oliveira AHB, Nascimento RF, Cavalcante RM. Influence of sediment parameters on the distribution and fate of PAHs in an estuarine tropical region located in the Brazilian semi-arid (Jaguaribe River, Ceará coast). MARINE POLLUTION BULLETIN 2019; 146:703-710. [PMID: 31426212 DOI: 10.1016/j.marpolbul.2019.07.027] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/12/2019] [Revised: 07/07/2019] [Accepted: 07/12/2019] [Indexed: 06/10/2023]
Abstract
18 polycyclic aromatic hydrocarbons (PAHs) were evaluated in the Jaguaribe River to explore the influence of grain size, organic carbon, humic and fulvic acids and black carbon on their adsorption onto sediment. The ∑PAHs concentrations variated from 0.6 to 3752.0 ng g-1 with highest concentrations in the estuarine zone. The PAHs predominant source along the river was from mixed sources, mainly related to biomass combustion, small oil spills related to recreational nautical activities and runoff from cities. Organic and inorganic parameters presented influence on PAHs distribution along the river, with humic acid as a determinant factor. These research findings are of importance to an assessment of the fate and transport of PAHs in estuarine systems.
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Affiliation(s)
- Márcia V F Andrade
- Instituto de Ciências do Mar, Universidade Federal do Ceará, 60165-081 Av. Abolição, 3207 Fortaleza, CE, Brazil
| | - Felipe R Santos
- Instituto de Ciências do Mar, Universidade Federal do Ceará, 60165-081 Av. Abolição, 3207 Fortaleza, CE, Brazil; Instituto Oceanográfico, Universidade de São Paulo, 05508-120 Praça do Oceanográfico, 191 São Paulo, SP, Brazil.
| | - André H B Oliveira
- Departamento de Química Analítica e Físico-Química, Universidade Federal do Ceará, 60455-760 Fortaleza, CE, Brazil
| | - Ronaldo F Nascimento
- Departamento de Química Analítica e Físico-Química, Universidade Federal do Ceará, 60455-760 Fortaleza, CE, Brazil
| | - Rivelino M Cavalcante
- Instituto de Ciências do Mar, Universidade Federal do Ceará, 60165-081 Av. Abolição, 3207 Fortaleza, CE, Brazil.
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21
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Khan MS, Khalid M, Ahmad MS, Shahid M, Ahmad M. Three-in-one is really better: exploring the sensing and adsorption properties in a newly designed metal-organic system incorporating a copper(ii) ion. Dalton Trans 2019; 48:12918-12932. [PMID: 31389450 DOI: 10.1039/c9dt02578b] [Citation(s) in RCA: 55] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
A 2-D copper(ii)-based coordination polymer, [Cu(SCN)(hmp)]n CP (1), was crystallized via the slow evaporation method after the reaction of CuSO4·5H2O, 2-pyridinemethanol (hmpH), sodium thiocyanate and sodium hydroxide in water for functional applications. CP (1) was characterized via elemental analysis, FTIR, PXRD, magnetic, EPR, crystallographic and TGA studies. The crystal structure and EPR data confirmed a square pyramidal geometry around the Cu(ii) ions. The topological analysis revealed that CP 1 has a {6^3} point symbol with a [6.6.6] extended point symbol and 3-c net, uninodal net having hcb and Shubnikov hexagonal plane net/(6,3) type of uncommon topology. The magnetic studies suggested the strong antiferromagnetic nature of CP (1). The fluorescence sensing property of CP (1) was investigated with different nitro aromatic compounds and hazardous metal ions. CP (1) demonstrated high selectivity and sensitivity towards nitrobenzene, even in the presence of other competitive nitro aromatics. In addition, CP (1) showed excellent selectivity and sensitivity toward Fe3+ over other metal ions. The possible detection mechanisms were proposed employing UV-visible and fluorescence spectroscopy and DFT calculations. CP (1) also showed excellent recyclability towards both analytes, and its initial intensity was almost regained after several washings. Moreover, CP (1) acted as an excellent adsorbent material for natural dyes with different charges and sizes, i.e., methylene blue (MB), methyl orange (MO) and Rhodamine-B. Furthermore, CP (1) was utilized repeatedly for the effective adsorption of MB from wastewater without significant loss in its adsorption capacity. Hence, the present CP (1) was designed to relate coordination chemistry with various functional applications of interest.
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Affiliation(s)
- M Shahnawaz Khan
- Department of Chemistry, Aligarh Muslim University, Aligarh 202002, India.
| | - Mohd Khalid
- Department of Chemistry, Aligarh Muslim University, Aligarh 202002, India.
| | - M Shahwaz Ahmad
- Department of Chemistry, Aligarh Muslim University, Aligarh 202002, India.
| | - M Shahid
- Department of Chemistry, Aligarh Muslim University, Aligarh 202002, India.
| | - Musheer Ahmad
- Department of Applied Chemistry, Aligarh Muslim University, Aligarh 202002, India
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22
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Li L, Sheng GD. Cation-group interaction as the predominant force for adsorption of substituted dinitrobenzenes by smectite clays. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2019; 26:24223-24234. [PMID: 31230245 DOI: 10.1007/s11356-019-05707-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/30/2019] [Accepted: 06/06/2019] [Indexed: 06/09/2023]
Abstract
Elucidation of the interaction between NACs and smectites is important to the understanding of the potential for transport of nitroaromatic compounds (NACs) in soils and to implementation of NAC-contaminated soil remediation. The adsorption of dinitrotoluene isomers (DNTs) and substituted dinitrobenzenes (SDNBs) by smectite was determined by batch equilibration and characterized by FTIR and XPS, along with molecular dynamics simulations. The adsorption of DNTs differed substantially among the isomers, attributed to the overall degree of nitro deflection relative to the aromatic ring plane. The substituents in SDNBs strengthened the electrostatic interaction between smectite K+ and nitro groups, facilitating SDNB adsorption to smectite. The competition between 2,4-DNT and 1,3-DNB, as well as the inclusion complexation of K+ by crown ether 18c6e, both reduced 2,4-DNT adsorption to smectite by weakening the K+-nitro interaction. All the results demonstrated that the electrostatic interaction between smectite K+ and nitro of NACs was the predominant force in mediating their adsorption. This was supported by FTIR spectra that the N-O bands shifted due to the weakening of N-O bonds and strengthening of C-N bonds via the electron transfer to cations. The XPS of smectite further manifested the cation-nitro interactions that the binding energies of K 2p 1/2, K 2p 3/2, and Si 2p shifted higher with 1,3-DNB adsorbed. Molecular dynamics simulations indicated the aromatic planes of 2,4-DNP and 2,4-DNAs were parallel to the basal plane of smectite and the oxygens of nitro groups in the molecules were directly coordinated with smectite K+.
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Affiliation(s)
- Liang Li
- State Key Laboratory of Pollution Control and Resource Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai, 200092, China
| | - G Daniel Sheng
- State Key Laboratory of Pollution Control and Resource Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai, 200092, China.
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23
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Zhao S, Miao D, Zhu K, Tao K, Wang C, Sharma VK, Jia H. Interaction of benzo[a]pyrene with Cu(II)-montmorillonite: Generation and toxicity of environmentally persistent free radicals and reactive oxygen species. ENVIRONMENT INTERNATIONAL 2019; 129:154-163. [PMID: 31128436 DOI: 10.1016/j.envint.2019.05.037] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/15/2019] [Revised: 04/27/2019] [Accepted: 05/14/2019] [Indexed: 05/23/2023]
Abstract
This paper presents the interaction of benzo[a]pyrene (B[a]P) with Cu(II)-montmorillonite to investigate the formation, evolution and potential toxicity of environmentally persistent free radicals (EPFRs) under dark and visible light irradiation conditions. Degradation of B[a]P and the generated transformative products on clay mineral are monitored by gas chromatography-mass spectrometry (GC-MS) technique. Hydroxyl-B[a]P and B[a]P-diones are observed during the transformation of B[a]P under dark condition. B[a]P-3,6-dione and B[a]P-6,12-dione are the main products under visible light irradiation. B[a]P transformation is accompanied by the formation of EPFRs, which are quantified by electron paramagnetic resonance (EPR) spectroscopy. With increasing reaction time, the concentrations of the produced EPFRs are initially increased and then gradually decrease to an undetectable level. The deconvolution results of EPR spectra reveal formation of three types of organic radicals (carbon-centered radicals, oxygen-centered radicals, and carbon-centered radicals with a conjugated oxygen), which also co-exist. Correspondingly, visible-light irradiation promotes the formation and the decay of these EPFRs. The produced B[a]P-type EPFRs induce the generation of reactive oxygen species (ROS), such as superoxide (O2-) and hydroxide radicals (OH), which may cause oxidative stress to cells and tissues of organisms. The toxicity of degradation products is evaluated by the livability of human gastric epithelial GES-1cells. The toxicity is initially increased and then decreases with the elapsed reaction time, which correlates with the evolution of EPFRs concentrations. The present work provides direct evidence that the formation of EPFRs in interaction of PAHs with metal-contaminated clays may result in negative effects to human health.
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Affiliation(s)
- Song Zhao
- College of Resources and Environment, Northwest A & F University, Yangling 712100, China
| | - Duo Miao
- College of Resources and Environment, Northwest A & F University, Yangling 712100, China
| | - Kecheng Zhu
- College of Resources and Environment, Northwest A & F University, Yangling 712100, China
| | - Kelin Tao
- College of Resources and Environment, Northwest A & F University, Yangling 712100, China
| | - Chuanyi Wang
- Xinjiang Technical Institute of Physics & Chemistry, Chinese Academy of Sciences, Urumqi 830011, China
| | - Virender K Sharma
- Program for the Environment and Sustainability, Department of Occupational and Environmental Health, School of Public Health, Texas A&M University, College Station, TX 77843, USA.
| | - Hanzhong Jia
- College of Resources and Environment, Northwest A & F University, Yangling 712100, China.
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24
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Ma JJ, Liu WS. Effective luminescence sensing of Fe 3+, Cr 2O 72-, MnO 4- and 4-nitrophenol by lanthanide metal-organic frameworks with a new topology type. Dalton Trans 2019; 48:12287-12295. [PMID: 31342032 DOI: 10.1039/c9dt01907c] [Citation(s) in RCA: 66] [Impact Index Per Article: 13.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
Lanthanide MOFs (Ln-MOFs), {[Ln2(L)2(H2O)2]·5H2O·6DMAC}n, [Ln||| = Eu(1) and Tb(2); H3L = 4,4'-(((5-carboxy-1,3-phenylene)bis(azanediyl))bis(carbonyl)) dibenzoic acid, DMAC = N,N'-dimethylacetamide], with a new topology type have been isolated. Single crystal X-ray diffraction indicates that complexes 1 and 2 are isostructural with binuclear [Eu2(COO)7]n secondary building units as 7-connected nodes and H3L ligands as 3-connected nodes and can be viewed as a (5,7)-connected 3D framework with a new topological point symbol of {32·44·54} {34·46·56·65}. Complexes 1 and 2 exhibit an excellent luminescence sensing response to inorganic ions Fe3+, Cr2O72-, MnO4- and 4-nitrophenol, with a low detection limit and high Ksv value. Interestingly, when the MnO4- ions are detected, the color of the solid sample is observed to change from yellow to brown, visually indicating luminescence induction, which makes the process of detecting MnO4- ions simpler and more practical. Moreover, by using time-resolved photoluminescence techniques, complex 1 can effectively eliminate background fluorescence interference during detection and improve detection accuracy. Solvent luminescence studies, pH stability and PXRD data indicate that complexes 1 and 2 can be used as excellent water-stable multi-response luminescent sensors for detecting a wide variety of toxic substances. In addition, the mechanism of selective detection is explained by the energy competition between the excitation of complexes 1 and 2 and the ultraviolet absorption of the responsive substance.
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Affiliation(s)
- Jing-Jing Ma
- Lanzhou University, Key Laboratory of Nonferrous Metals Chemistry and Resources Utilization of Gansu Province and State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou 730000, China.
| | - Wei-Sheng Liu
- Lanzhou University, Key Laboratory of Nonferrous Metals Chemistry and Resources Utilization of Gansu Province and State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou 730000, China.
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25
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Zhang J, Liu Y, Feng J, Gong L, Humphrey MG, Zhang C. Decanuclear Cluster-Based Metal–Organic Framework with a (3,11)-Connected Topology and Highly Sensitive 2,4,6-Trinitrophenol Detection. Inorg Chem 2019; 58:9749-9755. [DOI: 10.1021/acs.inorgchem.9b00745] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Jinfang Zhang
- School of Chemical and Material Engineering, Jiangnan University, Wuxi 214122, P. R. China
- China-Australia Joint Research Center for Functional Molecular Materials, School of Chemical Science and Engineering, Tongji University, Shanghai 200092, P. R. China
| | - Yuhang Liu
- School of Chemical and Material Engineering, Jiangnan University, Wuxi 214122, P. R. China
| | - Jiaoyang Feng
- School of Chemical and Material Engineering, Jiangnan University, Wuxi 214122, P. R. China
| | - Linpei Gong
- School of Chemical and Material Engineering, Jiangnan University, Wuxi 214122, P. R. China
| | - Mark G. Humphrey
- China-Australia Joint Research Center for Functional Molecular Materials, School of Chemical Science and Engineering, Tongji University, Shanghai 200092, P. R. China
- Research School of Chemistry, Australian National University, Canberra, ACT 2601, Australia
| | - Chi Zhang
- School of Chemical and Material Engineering, Jiangnan University, Wuxi 214122, P. R. China
- China-Australia Joint Research Center for Functional Molecular Materials, School of Chemical Science and Engineering, Tongji University, Shanghai 200092, P. R. China
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26
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Ontiveros-Cuadras JF, Ruiz-Fernández AC, Sanchez-Cabeza JA, Sericano J, Pérez-Bernal LH, Páez-Osuna F, Dunbar RB, Mucciarone DA. Recent history of persistent organic pollutants (PAHs, PCBs, PBDEs) in sediments from a large tropical lake. JOURNAL OF HAZARDOUS MATERIALS 2019; 368:264-273. [PMID: 30684764 DOI: 10.1016/j.jhazmat.2018.11.010] [Citation(s) in RCA: 42] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/16/2018] [Revised: 10/21/2018] [Accepted: 11/04/2018] [Indexed: 06/09/2023]
Abstract
210Pb-dated sediment cores and surface sediments from Lake Chapala (LC), Mexico, were analyzed to assess the temporal trends in concentrations and fluxes of persistent organic pollutants (POPs: PAHs, PCBs and PBDEs). Total sediment concentrations of PAHs (95-1,482 ng g-1), PCBs (9-27 ng g-1) and PBDEs (0.2-2.5 ng g-1) were indicative of moderate to intense contamination. The POP concentrations have progressively increased since the 1990s. The light molecular weight PAHs, and the prevalence of PCB congeners with low-chlorination levels (e.g., di- to tri-CB) and low-to medium-brominated (tri- to penta-BDE) PBDEs in most sections of the sediment profiles, suggested that these POPs have most likely reached these sediments by long-range atmospheric transport from distant sources; although the significant presence of heavier PAH, PCB and PBDE congeners in the topmost sediments, indicate that other nearby and local sources (soil erosion from the catchment, urban and industrial wastewaters discharges, as well as navigation) might have also contributed to the recent input of POPs to LC. Taking into account the relevance of LC as regional freshwater supply and commercial fishing ground, the potential risk posed by the organic contaminated sediments to the biota and human population should not be underestimated.
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Affiliation(s)
- Jorge Feliciano Ontiveros-Cuadras
- Unidad Académica Procesos Oceánicos y Costeros, Instituto de Ciencias del Mar y Limnología, Universidad Nacional Autónoma de México, Ciudad Universitaria, 04510, Ciudad de México, México.
| | - Ana Carolina Ruiz-Fernández
- Unidad Académica Mazatlán, Instituto de Ciencias del Mar y Limnología, Universidad Nacional Autónoma de México, 82040, Mazatlán, México.
| | - Joan-Albert Sanchez-Cabeza
- Unidad Académica Procesos Oceánicos y Costeros, Instituto de Ciencias del Mar y Limnología, Universidad Nacional Autónoma de México, Ciudad Universitaria, 04510, Ciudad de México, México.
| | - José Sericano
- Geochemical and Environmental Research Group, Texas A&M University, 833 Graham Road, College Station, TX 77845, USA.
| | - Libia Hascibe Pérez-Bernal
- Unidad Académica Mazatlán, Instituto de Ciencias del Mar y Limnología, Universidad Nacional Autónoma de México, 82040, Mazatlán, México.
| | - Federico Páez-Osuna
- Unidad Académica Mazatlán, Instituto de Ciencias del Mar y Limnología, Universidad Nacional Autónoma de México, 82040, Mazatlán, México.
| | - Robert B Dunbar
- Earth System Science, Stanford University, Stanford, CA 94305, USA.
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27
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Liu YL, Walker HW, Lenhart JJ. Adsorption of microcystin-LR onto kaolinite, illite and montmorillonite. CHEMOSPHERE 2019; 220:696-705. [PMID: 30611067 DOI: 10.1016/j.chemosphere.2018.12.137] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/24/2018] [Revised: 12/01/2018] [Accepted: 12/19/2018] [Indexed: 06/09/2023]
Abstract
In this study, microcystin-LR (MCLR) interactions with three representative silicate clays were studied using equilibrium batch experiments in order to provide insight into the role of clays on determining MCLR fate. The three tested clay minerals (kaolinite, montmorillonite and illite), saturated with sodium or calcium ions, were equilibrated with MCLR across a range of toxin concentrations at pH 5, 7 or 9. The results were fit to Freundlich and linear isotherm models, with the linear isotherm fits deemed most appropriate. In general, adsorption of MCLR was greater in the systems with Ca than in those with Na, however, regardless of the cation present, montmorillonite had the highest adsorption affinity for MCLR. Furthermore, except for Ca-montmorillonite, MCLR adsorption decreased with increasing pH. The pH-dependence of adsorption suggests the polar groups of MCLR, carboxylate associated with the glutamic acid and methylaspartic acid groups and amine associated with the arginine group, were more important in determining MCLR interactions with clays than the nonpolar ADDA group. Increased adsorption in systems enriched with calcium suggests Ca modified the clay interfacial properties and the availability of MCLR groups in a manner that increased MCLR affinity. Overall, the results suggest clays are capable of adsorbing MCLR from the aqueous phase, particularly at low pH and when saturated with Ca2+.
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Affiliation(s)
- Yen-Ling Liu
- Department of Civil, Environmental and Geodetic Engineering, The Ohio State University, Columbus, OH 43210, USA
| | - Harold W Walker
- Department of Civil Engineering, Stony Brook University, Stony Brook, NY 11794, USA
| | - John J Lenhart
- Department of Civil, Environmental and Geodetic Engineering, The Ohio State University, Columbus, OH 43210, USA.
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Hu E, Zhao X, Pan S, Ye Z, He F. Sorption of Non-ionic Aromatic Organics to Mineral Micropores: Interactive Effect of Cation Hydration and Mineral Charge Density. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2019; 53:3067-3077. [PMID: 30794386 DOI: 10.1021/acs.est.9b00145] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
The influence of K+ and Ca2+ on the sorption of non-ionic aromatic contaminants (1,4-dinitrobenzene and p-xylene) on a series of microporous zeolite minerals (HZSM-5) with various surface charge densities was investigated. For zeolites with high or low charge density (>1.78 or <0.16 sites/nm2), K+ and Ca2+ had negligible influence on the sorption of organics, which mainly occurred at the hydrophobic nanosites. For zeolites with charge density in the moderate range (0.16-1.78 sites/nm2), the sorption of organics was strongly dependent upon the cation hydration effect. K+ with a lower hydration free energy greatly favored sorption of organics to the micropores compared to Ca2+. Differential scanning calorimetry and X-ray photoelectron spectroscopy results indicated that K+ can reduce the water affinity and promote specific sorption of organics in the zeolites with moderate charge density. The above mechanisms were successfully applied to explain the retention of 1,4-dinitrobenzene and p-xylene on four natural minerals (smectite, illite, kaolinite, and mordenite). This study shed new insights on how cation hydration influences sorption interactions of non-ionic aromatic contaminants at mineral-water interfaces as a function of the mineral charge density.
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Affiliation(s)
- Erdan Hu
- College of Environment , Zhejiang University of Technology , Hangzhou , Zhejiang 310014 , People's Republic of China
| | - Xinglei Zhao
- College of Environment , Zhejiang University of Technology , Hangzhou , Zhejiang 310014 , People's Republic of China
| | - Shangyue Pan
- College of Environment , Zhejiang University of Technology , Hangzhou , Zhejiang 310014 , People's Republic of China
| | - Ziwei Ye
- College of Environment , Zhejiang University of Technology , Hangzhou , Zhejiang 310014 , People's Republic of China
| | - Feng He
- College of Environment , Zhejiang University of Technology , Hangzhou , Zhejiang 310014 , People's Republic of China
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29
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Deka J, Saha K, Konch TJ, Gogoi RK, Saikia S, Saikia PP, Dutta GK, Raidongia K. Reconstruction of Soil Components into Multifunctional Freestanding Membranes. ACS OMEGA 2019; 4:1292-1299. [PMID: 31459400 PMCID: PMC6648056 DOI: 10.1021/acsomega.8b03144] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/11/2018] [Accepted: 01/03/2019] [Indexed: 06/01/2023]
Abstract
Multifunctional freestanding membranes are prepared by tuning the structure of ubiquitous soil components, viz. clay and humic acids. Cross-linking of exfoliated clay layers with purified humic acids not only conferred mechanical strength but also enhanced chemical robustness of the membranes. The percolated network of molecularly sized channels of the soil membranes exhibits characteristic nanofluidic phenomena. Electrical conductivity is induced to otherwise insulating soil membranes by heating in an inert atmosphere, without affecting their nanofluidic ionic conductivity. The soil membranes also provided a new platform to prepare and study mixed conducting materials. Strips of heated membranes are shown to exhibit excellent sensitivity toward NH3 gas under atmospheric conditions.
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Affiliation(s)
- Jumi Deka
- Department
of Chemistry, Indian Institute of Technology
Guwahati, Guwahati, 781039 Assam, India
| | - Kundan Saha
- Department
of Chemistry, Indian Institute of Technology
Guwahati, Guwahati, 781039 Assam, India
| | - Tukhar Jyoti Konch
- Department
of Chemistry, Indian Institute of Technology
Guwahati, Guwahati, 781039 Assam, India
| | - Raj Kumar Gogoi
- Department
of Chemistry, Indian Institute of Technology
Guwahati, Guwahati, 781039 Assam, India
| | - Subhasmita Saikia
- Department
of Chemistry, Indian Institute of Technology
Guwahati, Guwahati, 781039 Assam, India
| | | | - Gitish K. Dutta
- Department
of Chemistry, National Institute of Technology
Meghalaya, 793003 Shillong, Meghalaya, India
| | - Kalyan Raidongia
- Department
of Chemistry, Indian Institute of Technology
Guwahati, Guwahati, 781039 Assam, India
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30
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Liu Y, Ma J, Xu C, Yang Y, Xia M, Jiang H, Liu W. A water-stable lanthanide coordination polymer as a multiresponsive luminescent sensor for Fe 3+, Cr(vi) and 4-nitrophenol. Dalton Trans 2018; 47:13543-13549. [PMID: 30204814 DOI: 10.1039/c8dt02202j] [Citation(s) in RCA: 43] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
Constructing water stable lanthanide coordination polymers (Ln-CPs) is of great importance for practical applications in biological and environmental areas and necessary for systematic research on the relationship between the properties of Ln-CPs and structures of linker ligands. A two-dimensional (2D) Eu coordination polymer (Eu-CP) {[Eu(L)(HCOO)]·H2O}n (H2L = isomer of 5-((pyridin-3-yloxy)methyl)isophthalic acid) is synthesized by the reaction of Eu(NO3)3·6H2O and H2L and heating at 140 °C. Single crystal X-ray diffraction analysis indicates that the Eu-CP presents a 2D network structure formed by binuclear metal clusters and bridged linkers COO- and HCOO-. The luminescence properties of the Eu-CP are explored at room temperature in the solid-state. The Eu-CP emits bright and stable red light due to the antenna effect from the ligand to the metal ion. The characteristic emission peaks of Eu3+ can be observed in its spectra. The luminescence intensity of the Eu-CP can be sensitively quenched by inorganic ions Fe3+, CrO42-, and Cr2O72- and the organic molecule 4-nitrophenol (4-NP). The Eu-CP can be a multiresponsive luminescent sensor in the water phase. Solvent luminescence investigation and PXRD data demonstrate that the Eu-CP exhibits excellent water stability. Therefore, all the sensing experiments are carried out in the water system. This multi-responsive luminescent sensor can detect Fe3+, Cr(vi) or 4-NP with high sensitivity and low detection limits in aqueous solution. Furthermore, the mechanism for the selective sensing of Fe3+, Cr(vi) or 4-NP is also explored which can mainly be explained by energy competition between the absorption of the analytes and the excitation of the Eu-CP.
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Affiliation(s)
- Yan Liu
- Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province and State Key Laboratory of Applied Organic Chemistry, Key Laboratory of Special Function Materials and Structure Design, Ministry of Education, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, 730000, China.
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31
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Liu HY, Gao GM, Liu J, Wang HY. Two metal–organic frameworks based on carboxyphenyl–terpyridine ligands: Synthesis, structure and highly luminescent sensing of nitrobenzene. Polyhedron 2018. [DOI: 10.1016/j.poly.2018.06.028] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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Zhang L, Lyu T, Ramírez Vargas CA, Arias CA, Carvalho PN, Brix H. New insights into the effects of support matrix on the removal of organic micro-pollutants and the microbial community in constructed wetlands. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2018; 240:699-708. [PMID: 29778055 DOI: 10.1016/j.envpol.2018.05.028] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/22/2018] [Revised: 05/03/2018] [Accepted: 05/08/2018] [Indexed: 06/08/2023]
Abstract
Constructed wetlands (CWs) are an eco-friendly and cost-effective technology to remove organic micro-pollutants (OMPs) from wastewater. The support matrix is an important component in CWs as it has a primary role in the growth and development of plants and microbes. However, the roles of the support matrix in CWs in removing OMPs have not been systematically studied. Therefore, in this study, six common materials (sand, zeolite, blast iron slag, petcoke, polonite and crushed autoclaved aerated concrete (CAAC)) as support matrixes were firstly investigated by batch tests to explore their adsorption capacities to selected OMPs (ibuprofen, iohexol, tebuconazole and imazalil). Results showed that the adsorption capacities of the materials were low (at the level of μg/g) compared to well-known sorbents (at the level of mg/g), such as activated carbon and carbon nanotubes. Columns packed with the six materials, respectively, were then built up to study the effects of different materials on microbial community. In the medium-term study (66 days), the removal of four OMPs in all the columns increased by 2-58% from day 25 to day 66, and was mainly attributed to microbial degradation. Furthermore, Community-level physiological profiling (CLPP) analysis indicates that material presence shaped the microbial community metabolic function not only in the interstitial water but also in the biofilm. Overall, all the findings demonstrate that although the adsorption capacities of the common materials are low, they may be a driver to improve the removal of OMPs by altering microbial community function in CWs.
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Affiliation(s)
- Liang Zhang
- Department of Bioscience, Aarhus University, 8000 Aarhus C, Denmark.
| | - Tao Lyu
- Department of Bioscience, Aarhus University, 8000 Aarhus C, Denmark; School of Animal, Rural and Environmental Sciences, Nottingham Trent University, Nottinghamshire NG250QF, UK
| | | | - Carlos A Arias
- Department of Bioscience, Aarhus University, 8000 Aarhus C, Denmark
| | - Pedro N Carvalho
- Department of Bioscience, Aarhus University, 8000 Aarhus C, Denmark; Department of Environmental Sciences, Aarhus University, Frederiksborgsvej 399, 4000 Roskilde, Denmark.
| | - Hans Brix
- Department of Bioscience, Aarhus University, 8000 Aarhus C, Denmark
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Kibar G, Tuncel A. Gold-Nanoparticle Decorated Monosized Magnetic Polymer Based Catalyst: Reduction of 4-Nitrophenol. J Inorg Organomet Polym Mater 2018. [DOI: 10.1007/s10904-018-0899-3] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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34
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Adsorption and emission enhancement behavior of 4,4′-bipyridine on dispersed montmorillonite nano-sheets under aqueous conditions. Tetrahedron Lett 2018. [DOI: 10.1016/j.tetlet.2018.05.036] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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35
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Luo L, Lv J, Chen Z. Synchrotron infrared microspectroscopy reveals the roles of aliphatic and aromatic moieties in sorption of nitroaromatic compounds to soils. THE SCIENCE OF THE TOTAL ENVIRONMENT 2018; 624:210-214. [PMID: 29272825 DOI: 10.1016/j.scitotenv.2017.12.141] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/01/2017] [Revised: 12/12/2017] [Accepted: 12/12/2017] [Indexed: 06/07/2023]
Abstract
A consensus on the role of organic carbon moieties as the sorptive domains for nonionic organic compounds in soils is lacking due to the extremely complicated compositions of soil matrices. In this study, synchrotron radiation-based infrared microspectroscopy (IMS) was applied to in situ probe the distributions of four nitroaromatic compounds with varying hydrophobicity (namely, 1,3-dinitrobenzene, 1,5-dinitronapthalene, 3-nitrophenanthrene and 6-nitrobenzo[a]pyrene) and their associations with aliphatic and aromatic organic carbon moieties in soils. The technique revealed that both nitro group (NO2) from the nitroaromatic compounds and organic carbon moieties were unevenly distributed in the soils at the micron scale. The spatial distribution of nitro groups was positively correlated with that of aromatic carbon (C=C) (r>0.804, p<0.01), indicating that the aromatic moieties of soil organic carbon play a key role in sorption of nitroaromatic compounds to soils. Neither nitro groups nor aromatic carbon showed a close relationship with aliphatic carbon (CH) in the spatial distribution in the soils. Meanwhile, the nitro groups from 1,3-dinitrobenzene and 1,5-dinitronapthalene exhibited a significant correlation with clay minerals (OH) in their distributions (r>0.629, p<0.01) in the soils and the correlation became insignificant for the other two compounds with high hydrophobicity. This study for the first time provides micron-scale spectroscopic evidence for the roles of organic carbon moieties in the sorption of nonionic organic compounds to soils.
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Affiliation(s)
- Lei Luo
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, The Chinese Academy of Sciences, Beijing 100085, PR China.
| | - Jitao Lv
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, The Chinese Academy of Sciences, Beijing 100085, PR China
| | - Zien Chen
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, The Chinese Academy of Sciences, Beijing 100085, PR China
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36
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Yin X, Meng S, Xie J. Heterobimetallic Mg–Ag coordination polymer with luminescence and 2,4,6-Trinitrophenol sensing properties. Polyhedron 2018. [DOI: 10.1016/j.poly.2017.10.033] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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37
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Meng R, Chen T, Zhang Y, Lu W, Liu Y, Lu T, Liu Y, Wang H. Development, modification, and application of low-cost and available biochar derived from corn straw for the removal of vanadium(v) from aqueous solution and real contaminated groundwater. RSC Adv 2018; 8:21480-21494. [PMID: 35539926 PMCID: PMC9080952 DOI: 10.1039/c8ra02172d] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2018] [Accepted: 06/04/2018] [Indexed: 12/04/2022] Open
Abstract
In this work, a low-cost and available material for use as a permeable reactive barrier (PRB) to prevent vanadium in groundwater from leaking into river water was developed. Three modified biochars were prepared from available corn straw pretreated with CsCl, Zn(ii), and Zr(iv) to enhance ion exchange capacity (IEC) and specific surface area, and were designated as Cs-BC, Zn-BC, and Zr-BC, respectively. These materials were characterized via IEC, N2 adsorption–desorption, Fourier-transform infrared spectroscopy (FTIR), and X-ray diffraction (XRD) analyses. The Langmuir isotherm model could be applied for the best fit for the adsorption data of Cs-BC and Zr-BC, indicating that vanadium(v) sorption occurred in a monolayer. The vanadium(v) adsorption capacities of Cs-BC, Zn-BC, and Zr-BC were 41.07, 28.46, and 23.84 mg g−1, respectively, which were 3.22–5.55 times higher than that of commercial activated carbon (AC) (7.40 mg g−1), probably because of their higher IECs and specific surface areas after modification. In addition, no heavy metal leaching was found from the modified biochars during the adsorption processes when pH > 2. According to the FTIR and XRD patterns, the adsorption mechanism of Cs-BC and Zr-BC was ion exchange, whereas for Zn-BC, it was mainly surface precipitation and electrostatic attraction. The adsorption of vanadium(v) onto the modified biochars was independent of pH in the range of 4.0 to 8.0. Furthermore, the removal efficiency of the vanadium(v) in real contaminated groundwater from the catchment of the Chaobei River by Zn-BC reached 100% at a dose of 4 g L−1. Hence, modified biochars are promising PRB filling materials for removing vanadium(v) from contaminated groundwater. In this work, a low-cost and available material for use as a permeable reactive barrier (PRB) to prevent vanadium in groundwater from leaking into river water was developed.![]()
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Affiliation(s)
- Ruihong Meng
- School of Environment
- Tsinghua University
- Beijing 100084
- P. R. China
- Key Laboratory for Solid Waste Management and Environment Safety
| | - Tan Chen
- College of Life and Environmental Sciences
- Minzu University of China
- Beijing 100081
- P. R. China
| | - Yaxin Zhang
- College of Environmental Science and Engineering
- Hunan University
- Changsha 410082
- P. R. China
| | - Wenjing Lu
- School of Environment
- Tsinghua University
- Beijing 100084
- P. R. China
- Key Laboratory for Solid Waste Management and Environment Safety
| | - Yanting Liu
- School of Environment
- Tsinghua University
- Beijing 100084
- P. R. China
- Key Laboratory for Solid Waste Management and Environment Safety
| | - Tianchu Lu
- CECEP Clean Technology Development Co., Ltd
- Beijing 100083
- P. R. China
| | - Yanjun Liu
- School of Environment
- Tsinghua University
- Beijing 100084
- P. R. China
- Key Laboratory for Solid Waste Management and Environment Safety
| | - Hongtao Wang
- School of Environment
- Tsinghua University
- Beijing 100084
- P. R. China
- Key Laboratory for Solid Waste Management and Environment Safety
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39
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Kumar N, Mandal SK. Design and application of a fluorogenic receptor for selective sensing of cations, small neutral molecules, and anions. NEW J CHEM 2018. [DOI: 10.1039/c8nj03998d] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
An unprecedented single multi-analyte fluorogenic receptor, a sodium salt of N-(methyl-2-thiophenyl)-tyrosine (NaHTyrthio), is reported for the selective sensing of cations (Cu2+), small neutral molecules (nitrobenzene and aniline) and anions (F−) by variable spectral responses.
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Affiliation(s)
- Navnita Kumar
- Department of Chemical Sciences
- Indian Institute of Science Education and Research Mohali
- Mohali
- India
| | - Sanjay K. Mandal
- Department of Chemical Sciences
- Indian Institute of Science Education and Research Mohali
- Mohali
- India
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40
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Luminescent two-dimensional CdII coordination polymer for selective sensing Fe3+ and 2,4,6-trinitrophenol with high sensitivity in water. INORG CHEM COMMUN 2017. [DOI: 10.1016/j.inoche.2017.10.023] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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41
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Zhang SR, Wang W, Xu GJ, Yao C, Xu YH, Su ZM. A luminescent coordination polymer for selective, sensitive, and recyclable sensing of nitrobenzene in aqueous solution. INORG CHEM COMMUN 2017. [DOI: 10.1016/j.inoche.2017.07.008] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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42
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Based on a V-shaped In(III) metal–organic framework (MOF): Design, synthesis and characterization of diverse physical and chemical properties. Polyhedron 2017. [DOI: 10.1016/j.poly.2017.05.061] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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43
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Enhanced treatment of dispersed dye-production wastewater by self-assembled organobentonite in a one-step process with poly-aluminium chloride. Sci Rep 2017; 7:6843. [PMID: 28754969 PMCID: PMC5533790 DOI: 10.1038/s41598-017-07333-2] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2017] [Accepted: 06/28/2017] [Indexed: 12/03/2022] Open
Abstract
Organobentonite has been successfully applied in industrial wastewater treatment. However, the solid-liquid separation in wastewater treatment still needs improvement. This study presents an enhanced approach with high removal efficiency and short separation time for dispersed dye-production wastewater using self-assembled organobentonite in a one-step process with poly-aluminium chloride (PAC). The enhanced effects of PAC on wastewater treatment by organobentonite were comprehensively evaluated. Following the primary decontamination by the self-assembled organobentonite, the removal efficiency for dispersed dye-production wastewater was strengthened with PAC coagulation. The removal rates of TOC and organic pollutants were 55.0% and 63.5%, respectively, with the PAC-enhanced approach and were 1.3- and 1.6-fold higher, respectively, than those with the self-assembled organobentonite approach. The combination of PAC with self-assembled organobentonite was able to break the stability of the organobentonite suspension and enlarge the floc size, and thus reduce the solid-liquid separation time from 30 min to 10 min. Additionally, this enhanced approach could improve the biodegradability of wastewater with the BOD5/CODCr ratio increasing from 0.22 to 0.39, which was 4.1-fold higher than that of only organobentonite in a one-step process. Therefore, the PAC-enhanced approach could be a promising technology for wastewater pretreatment in practical industrial applications.
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44
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Yang L, Lian C, Li X, Han Y, Yang L, Cai T, Shao C. Highly Selective Bifunctional Luminescent Sensor toward Nitrobenzene and Cu 2+ Ion Based on Microporous Metal-Organic Frameworks: Synthesis, Structures, and Properties. ACS APPLIED MATERIALS & INTERFACES 2017; 9:17208-17217. [PMID: 28467044 DOI: 10.1021/acsami.7b01758] [Citation(s) in RCA: 66] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Two metal-organic frameworks (MOFs), namely, [Ni(DTP)(H2O)]n (I) and [Cd2(DTP)2(bibp)1.5]n (II) (H2DPT = 4'-(4-(3,5-dicarboxylphenoxy) phenyl)-4,2':6',4″-terpyridine; bibp = 1,3-di(1H-imidazol-1-yl)propane), that present structural diversity were solvothermally prepared. Single-crystal X-ray diffraction analysis indicates that they consist of {NiN2O4} building units (for I) and {CdO4N2} and {CdO3N3} building units (for II), which are further linked by multicarboxylate H2DPT to construct microporous three-dimensional frameworks. The remarkable character of these frameworks is that coordination polymer II demonstrates highly selective and sensitive bifunctional luminescent sensor toward nitrobenzene and Cu2+ ion. The fluorescence quenching mechanism of II caused by nitrobenzene is ascribed to electron transfer from electron-rich (II) to electron-deficient nitrobenzene. The result was also evidenced by the density functional theory. Furthermore, anti-ferromagnetic as well as electrochemical characters of Ni-MOF (I) were also investigated in this paper.
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Affiliation(s)
- Lirong Yang
- Henan Key Laboratory of Polyoxometalate, Institute of Molecule and Crystal Engineering, College of Chemistry and Chemical Engineering, Henan University , Kaifeng 475004, P. R. China
| | - Chen Lian
- Henan Key Laboratory of Polyoxometalate, Institute of Molecule and Crystal Engineering, College of Chemistry and Chemical Engineering, Henan University , Kaifeng 475004, P. R. China
| | - Xuefei Li
- Henan Key Laboratory of Polyoxometalate, Institute of Molecule and Crystal Engineering, College of Chemistry and Chemical Engineering, Henan University , Kaifeng 475004, P. R. China
| | - Yuyang Han
- Henan Key Laboratory of Polyoxometalate, Institute of Molecule and Crystal Engineering, College of Chemistry and Chemical Engineering, Henan University , Kaifeng 475004, P. R. China
| | - Lele Yang
- Henan Key Laboratory of Polyoxometalate, Institute of Molecule and Crystal Engineering, College of Chemistry and Chemical Engineering, Henan University , Kaifeng 475004, P. R. China
| | - Ting Cai
- Henan Key Laboratory of Polyoxometalate, Institute of Molecule and Crystal Engineering, College of Chemistry and Chemical Engineering, Henan University , Kaifeng 475004, P. R. China
| | - Caiyun Shao
- Henan Key Laboratory of Polyoxometalate, Institute of Molecule and Crystal Engineering, College of Chemistry and Chemical Engineering, Henan University , Kaifeng 475004, P. R. China
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45
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Zhang S, Liu Q, Cheng H, Gao F, Liu C, Teppen BJ. Thermodynamic Mechanism and Interfacial Structure of Kaolinite Intercalation and Surface Modification by Alkane Surfactants with Neutral and Ionic Head Groups. THE JOURNAL OF PHYSICAL CHEMISTRY. C, NANOMATERIALS AND INTERFACES 2017; 121:8824-8831. [PMID: 29657661 PMCID: PMC5896017 DOI: 10.1021/acs.jpcc.6b12919] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
Intercalation and surface modification of clays with surfactants are the essential process to tailor the clays' surface chemistry for their extended applications. A full understanding of the interaction mechanism of surfactants with clay surfaces is crucial to engineer clay surfaces for meeting a particular requirement of industrial applications. In this study, the thermodynamic mechanism involved in the intercalation and surface modification of methanol preintercalated kaolinite by three representative alkane surfactants with different head groups, dodecylamine, cetyltrimethylammonium chloride (CTAC), and sodium stearate, were investigated using the adaptive biasing force accelerated molecular dynamics simulations. In addition, the interaction energies of surfactants with an interlayer environment (alumina surface, siloxane surface, and interlayer methanol) of methanol preintercalated kaolinite were also calculated. It was found that the intercalation free energy of CTAC with a cationic head group was relatively larger than that of stearate with an anionic head group and dodecylamine with a neutral head group. The attractive electrostatic and van der Waals interactions of surfactants with an interlayer environment contributed to the intercalation and surface modification process with the electrostatic force playing the significant role. This study revealed the underlying mechanism involved in the intercalation and surface modification process of methanol preintercalated kaolinite by surfactants, which can help in further design of kaolinite-based organic clays with desired properties for specific applications.
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Affiliation(s)
- Shuai Zhang
- School of Geosciences and Surveying Engineering, China University of Mining &Technology (Beijing), Beijing 100083, People’s Republic of China
- Department of Plant, Soil, and Microbial Sciences, Michigan State University, East Lansing, Michigan 48824, United States
| | - Qinfu Liu
- School of Geosciences and Surveying Engineering, China University of Mining &Technology (Beijing), Beijing 100083, People’s Republic of China
| | - Hongfei Cheng
- School of Geosciences and Surveying Engineering, China University of Mining &Technology (Beijing), Beijing 100083, People’s Republic of China
| | - Feng Gao
- Department of Plant, Soil, and Microbial Sciences, Michigan State University, East Lansing, Michigan 48824, United States
| | - Cun Liu
- Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, People’s Republic of China
| | - Brian J. Teppen
- Department of Plant, Soil, and Microbial Sciences, Michigan State University, East Lansing, Michigan 48824, United States
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46
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Bandowe BAM, Meusel H. Nitrated polycyclic aromatic hydrocarbons (nitro-PAHs) in the environment - A review. THE SCIENCE OF THE TOTAL ENVIRONMENT 2017; 581-582:237-257. [PMID: 28069306 DOI: 10.1016/j.scitotenv.2016.12.115] [Citation(s) in RCA: 180] [Impact Index Per Article: 25.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/01/2016] [Revised: 12/16/2016] [Accepted: 12/16/2016] [Indexed: 05/07/2023]
Abstract
Nitrated polycyclic aromatic hydrocarbons (nitro-PAHs) are derivatives of PAHs with at least one nitro-functional group (-NO2) on the aromatic ring. The toxic effects of several nitro-PAHs are more pronounced than those of PAHs. Some nitro-PAHs are classified as possible or probable human carcinogens by the International Agency for Research on Cancer. Nitro-PAHs are released into the environment from combustion of carbonaceous materials (e.g. fossil fuels, biomass, waste) and post-emission transformation of PAHs. Most studies on nitro-PAHs are about air (gas-phase and particulate matter), therefore less is known about the occurrence, concentrations, transport and fate of nitro-PAHs in soils, aquatic environment and biota. Studies on partition and exchange of nitro-PAHs between adjacent environmental compartments are also sparse. The concentrations of nitro-PAHs cannot easily be predicted from the intensity of anthropogenic activity or easily related to those of PAHs. This is because anthropogenic source strengths of nitro-PAHs are different from those of PAHs, and also nitro-PAHs have additional sources (formed by photochemical conversion of PAHs). The fate and transport of nitro-PAHs could be considerably different from their related PAHs because of their higher molecular weights and considerably different sorption mechanisms. Hence, specific knowledge on nitro-PAHs is required. Regulations on nitro-PAHs are also lacking. We present an extensive review of published literature on the sources, formation, physico-chemical properties, methods of determination, occurrence, concentration, transport, fate, (eco)toxicological and adverse health effects of nitro-PAHs. We also make suggestions and recommendations about data needs, and future research directions on nitro-PAHs. It is expected that this review will stimulate scientific discussion and provide the basis for further research and regulations on nitro-PAHs.
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Affiliation(s)
- Benjamin A Musa Bandowe
- Institute of Geography, University of Bern, Hallerstrasse 12, 3012 Bern, Switzerland; Oeschger Centre for Climate Change Research, University of Bern, Falkenplatz 16, 3012 Bern, Switzerland.
| | - Hannah Meusel
- Multiphase Chemistry Department, Max Planck Institute for Chemistry, Hahn-Meitner-Weg 1, 55128 Mainz, Germany
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47
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Two distinct Cd-2,6-bip coordination polymers: Auxiliary ligand affected structures, luminescence and nitrobenzene sensing properties. Polyhedron 2017. [DOI: 10.1016/j.poly.2016.10.030] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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48
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Liang Y, Li H. A comparison of trimeric surfactant intercalated montmorillonite with its gemini modified one: Characterization and application in methyl orange removal. J Mol Liq 2017. [DOI: 10.1016/j.molliq.2016.11.104] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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49
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Li X, Zhao Y, Xi B, Meng X, Gong B, Li R, Peng X, Liu H. Decolorization of Methyl Orange by a new clay-supported nanoscale zero-valent iron: Synergetic effect, efficiency optimization and mechanism. J Environ Sci (China) 2017; 52:8-17. [PMID: 28254061 DOI: 10.1016/j.jes.2016.03.022] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2015] [Revised: 03/03/2016] [Accepted: 03/07/2016] [Indexed: 06/06/2023]
Abstract
In this study, a novel nanoscale zero-valent iron (nZVI) composite material was successfully synthesized using a low-cost natural clay, "Hangjin 2# clay" (HJ clay) as the support and tested for the decolorization of the azo dye Methyl Orange (MO) in aqueous solution by nZVI particles. According to the characterization and MO decolorization experiments, the sample with 5:1 HJ clay-supported nZVI (HJ/nZVI) mass ratio (HJ-nZVI5) showed the best dispersion and reactivity and the highest MO decolorization efficiency. With the same equivalent Fe0 dosage, the HJ-nZVI1 and HJ-nZVI5 samples demonstrated a synergetic effect for the decolorization of MO: their decolorization efficiencies were much higher than that achieved by physical mixing of HJ clay and nZVIs, or the sum of HJ clay and nZVIs alone. The synergetic effect was primarily due to the improved dispersion and more effective utilization of the nZVI particles on/in the composite materials. Higher decolorization efficiency of MO was obtained at larger HJ-nZVI dosage, higher temperature and under N2 atmosphere, while the MO initial concentration and pH were negatively correlated to the efficiency. HJ clay not only works as a carrier for nZVI nanoparticles, but also contributes to the decolorization through an "adsorption-enhanced reduction" mechanism. The high efficiency of HJ-nZVI for decontamination gives it great potential for use in a variety of remediation applications.
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Affiliation(s)
- Xiaoguang Li
- School of Environment, Beijing Normal University, Beijing 100875, China; State Environmental Protection Key Laboratory of Simulation and Control of Groundwater Pollution, Chinese Research Academy of Environmental Sciences, Beijing 100012, China; State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China
| | - Ying Zhao
- State Environmental Protection Key Laboratory of Simulation and Control of Groundwater Pollution, Chinese Research Academy of Environmental Sciences, Beijing 100012, China; State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China.
| | - Beidou Xi
- State Environmental Protection Key Laboratory of Simulation and Control of Groundwater Pollution, Chinese Research Academy of Environmental Sciences, Beijing 100012, China; State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China; School of Environmental and Municipal Engineering, Lanzhou Jiaotong University, Lanzhou 730070, China.
| | - Xiaoguang Meng
- Center for Environmental Systems, Stevens Institute of Technology, Hoboken, NJ 07030, USA
| | - Bin Gong
- State Environmental Protection Key Laboratory of Simulation and Control of Groundwater Pollution, Chinese Research Academy of Environmental Sciences, Beijing 100012, China; State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China
| | - Rui Li
- State Environmental Protection Key Laboratory of Simulation and Control of Groundwater Pollution, Chinese Research Academy of Environmental Sciences, Beijing 100012, China; State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China
| | - Xing Peng
- School of Environment, Beijing Normal University, Beijing 100875, China; State Environmental Protection Key Laboratory of Simulation and Control of Groundwater Pollution, Chinese Research Academy of Environmental Sciences, Beijing 100012, China; State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China
| | - Hongliang Liu
- School of Environment, Beijing Normal University, Beijing 100875, China; State Environmental Protection Key Laboratory of Simulation and Control of Groundwater Pollution, Chinese Research Academy of Environmental Sciences, Beijing 100012, China; State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China
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50
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Wu XQ, Huang DD, Zhou ZH, Dong WW, Wu YP, Zhao J, Li DS, Zhang Q, Bu X. Ag-NPs embedded in two novel Zn3/Zn5-cluster-based metal–organic frameworks for catalytic reduction of 2/3/4-nitrophenol. Dalton Trans 2017; 46:2430-2438. [DOI: 10.1039/c7dt00024c] [Citation(s) in RCA: 45] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Two novel microporous Zn-MOFs consist of different SBUs have been used to embed Ag NPs, resulting in two composite catalysts, which show outstanding catalytic activities toward the reduction of nitrophenol.
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Affiliation(s)
- Xue-Qian Wu
- College of Materials and Chemical Engineering
- Collaborative Innovation Center for Microgrid of New Energy of Hubei Province
- Key Laboratory of Inorganic Nonmetallic Crystalline and Energy Conversion Materials
- China Three Gorges University
- Yichang 443002
| | - Dan-Dan Huang
- College of Materials and Chemical Engineering
- Collaborative Innovation Center for Microgrid of New Energy of Hubei Province
- Key Laboratory of Inorganic Nonmetallic Crystalline and Energy Conversion Materials
- China Three Gorges University
- Yichang 443002
| | - Zhi-Hang Zhou
- College of Materials and Chemical Engineering
- Collaborative Innovation Center for Microgrid of New Energy of Hubei Province
- Key Laboratory of Inorganic Nonmetallic Crystalline and Energy Conversion Materials
- China Three Gorges University
- Yichang 443002
| | - Wen-Wen Dong
- College of Materials and Chemical Engineering
- Collaborative Innovation Center for Microgrid of New Energy of Hubei Province
- Key Laboratory of Inorganic Nonmetallic Crystalline and Energy Conversion Materials
- China Three Gorges University
- Yichang 443002
| | - Ya-Pan Wu
- College of Materials and Chemical Engineering
- Collaborative Innovation Center for Microgrid of New Energy of Hubei Province
- Key Laboratory of Inorganic Nonmetallic Crystalline and Energy Conversion Materials
- China Three Gorges University
- Yichang 443002
| | - Jun Zhao
- College of Materials and Chemical Engineering
- Collaborative Innovation Center for Microgrid of New Energy of Hubei Province
- Key Laboratory of Inorganic Nonmetallic Crystalline and Energy Conversion Materials
- China Three Gorges University
- Yichang 443002
| | - Dong-Sheng Li
- College of Materials and Chemical Engineering
- Collaborative Innovation Center for Microgrid of New Energy of Hubei Province
- Key Laboratory of Inorganic Nonmetallic Crystalline and Energy Conversion Materials
- China Three Gorges University
- Yichang 443002
| | - Qichun Zhang
- School of Materials Science and Engineering
- Nanyang Technological University
- Singapore 639798
- Singapore
| | - Xianhui Bu
- Department of Chemistry and Biochemistry
- California State University
- Long Beach
- USA
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