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You XY, Yin WM, Wang Y, Wang C, Zheng WX, Guo YR, Li S, Pan QJ. Enrichment and immobilization of heavy metal ions from wastewater by nanocellulose/carbon dots-derived composite. Int J Biol Macromol 2024; 255:128274. [PMID: 37989432 DOI: 10.1016/j.ijbiomac.2023.128274] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2023] [Revised: 11/05/2023] [Accepted: 11/17/2023] [Indexed: 11/23/2023]
Abstract
Heavy metal ions (HMIs) have been widely applied in various industries because of their excellent physicochemical properties. However, their discharging without appropriate treatment brought about serious pollution problems. So it is desirable but challenging to rapidly and completely clean up these toxic pollutants from water, especially utilizing environmentally friendly and naturally rich biomass materials. In this work, we prepared nanocellulose/carbon dots/magnesium hydroxide (CCMg) ternary composite using cotton via a simple hydrothermal method. The removal mechanism towards Cd2+ and Cu2+ was investigated using a combination of experimental techniques and density functional theory calculations. CCMg shows a good ability to remove HMIs. It is realized that the interaction between each component of CCMg and cadmium nitrate is mainly of hydrogen/dative bonds. Cadmium nitrate is preferentially enriched by the Mg(OH)2 moiety, proved by calculated thermodynamics, interfacial interactions and charges. After transformation, the cadmium carbonate precipitate is fixed on the surface by nanocellulose (NC) via chemical coupling; and of interest is that copper ion precipitates in the form of basic sulfate. Due to its high adsorption effect and simple recovery operation, CCMg is having a wide range of application prospects as a water treatment agent.
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Affiliation(s)
- Xin-Yu You
- Key Laboratory of Bio-based Material Science & Technology (Ministry of Education), College of Material Science and Engineering, Northeast Forestry University, Harbin 150040, China; Key Laboratory of Functional Inorganic Material Chemistry (Ministry of Education), School of Chemistry and Materials Science, Heilongjiang University, Harbin 150080, China
| | - Wei-Ming Yin
- Key Laboratory of Bio-based Material Science & Technology (Ministry of Education), College of Material Science and Engineering, Northeast Forestry University, Harbin 150040, China
| | - Yan Wang
- Harbin Center for Disease Control and Prevention (Harbin Center for Health Examination), Harbin 150030, China
| | - Chen Wang
- Key Laboratory of Functional Inorganic Material Chemistry (Ministry of Education), School of Chemistry and Materials Science, Heilongjiang University, Harbin 150080, China
| | - Wen-Xiu Zheng
- Key Laboratory of Functional Inorganic Material Chemistry (Ministry of Education), School of Chemistry and Materials Science, Heilongjiang University, Harbin 150080, China
| | - Yuan-Ru Guo
- Key Laboratory of Bio-based Material Science & Technology (Ministry of Education), College of Material Science and Engineering, Northeast Forestry University, Harbin 150040, China.
| | - Shujun Li
- Key Laboratory of Bio-based Material Science & Technology (Ministry of Education), College of Material Science and Engineering, Northeast Forestry University, Harbin 150040, China.
| | - Qing-Jiang Pan
- Key Laboratory of Functional Inorganic Material Chemistry (Ministry of Education), School of Chemistry and Materials Science, Heilongjiang University, Harbin 150080, China.
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2
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Li L, Yu SJ, Zheng RG, Li P, Li QC, Liu JF. Removal of iodide anions in water by silver nanoparticles supported on polystyrene anion exchanger. J Environ Sci (China) 2023; 128:45-54. [PMID: 36801041 DOI: 10.1016/j.jes.2022.08.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2022] [Revised: 08/06/2022] [Accepted: 08/06/2022] [Indexed: 06/18/2023]
Abstract
The removal of iodide (I-) from source waters is an effective strategy to minimize the formation of iodinated disinfection by-products (DBPs), which are more toxic than their brominated and chlorinated analogues. In this work, a nanocomposite Ag-D201 was synthesized by multiple in situ reduction of Ag-complex in D201 polymer matrix, to achieve highly efficient removal of iodide from water. Scanning electron microscope /energy dispersive spectrometer characterization showed that uniform cubic silver nanoparticles (AgNPs) evenly dispersed in the D201 pores. The equilibrium isotherms data for iodide adsorption onto Ag-D201 was well fitted with Langmuir isotherm with the adsorption capacity of 533 mg/g at neutral pH. The adsorption capacity of Ag-D201 increased with the decrease of pH in acidic aqueous solution, and reached the maximum value of 802 mg/g at pH 2. This was attributed to the oxidization of I-, by dissolved oxygen under the catalysis of AgNPs, to I2 which was finally adsorbed as AgI3. However, the aqueous solutions at pH 7 - 11 could hardly affect the iodide adsorption. The adsorption of I- was barely affected by real water matrixes such as competitive anions (SO42-, NO3-, HCO3-, Cl-) and natural organic matter, of which interference of NOM was offset by the presence of Ca2+. The proposed synergistic mechanism for the excellent performance of iodide adsorption by the absorbent was ascribed to the Donnan membrane effect caused by the D201 resin, the chemisorption of I- by AgNPs, and the catalytic effect of AgNPs.
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Affiliation(s)
- Li Li
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; University of Chinese Academy of Sciences, Beijing 100049, China; Department of Ecology and Resources Engineering, He Tao College, Inner Mongolia 015000, China
| | - Su-Juan Yu
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Rong-Gang Zheng
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Peng Li
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Qing-Cun Li
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Jing-Fu Liu
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; Hubei Key Laboratory of Environmental and Health Effects of Persistent Toxic Substances, Institute of Environment and Health, Jianghan University, Wuhan 430056, China; University of Chinese Academy of Sciences, Beijing 100049, China.
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3
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Yin WM, Wang Y, Sun Y, Zhao ND, Wang C, Chen Z, Guo YR, Li S, Pan QJ. Confinement effect of network-structured carbon dots/cellulose nanocellulose/magnesium hydroxide for enhanced heavy metal ions capture and immobilization. Int J Biol Macromol 2023; 237:124194. [PMID: 36972825 DOI: 10.1016/j.ijbiomac.2023.124194] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2022] [Revised: 03/02/2023] [Accepted: 03/23/2023] [Indexed: 03/29/2023]
Abstract
To solve pollution problem of heavy metal ions (HMIs) and recover them for sustainable development, a high-efficient-sewage treatment agent, carbon dots/cellulose nanofiber/Mg(OH)2 (CCMg), has been fabricated via a simple hydrothermal method. A variety of characterizations show that cellulose nanofiber (CNF) formed a layered-net structure. Hexagonal Mg(OH)2 flakes of about 100 nm has been attached on CNF. Carbon dots (CDs) around 10-20 nm in size were produced from CNF and distributed along CNF. The extraordinary structural feature endows CCMg with high removal performance towards HMIs. The up-taken capacities reach 992.8 and 667.3 mg g-1 for Cd2+ and Cu2+, respectively. The composite bears excellent durability in treating wastewater. Notably, the qualification of the drinking water can be satisfied while applying CCMg to handle Cu2+ wastewater. The mechanism of removal process has been proposed. Practically, Cd2+/Cu2+ ions were immobilized by CNF due to the space confinement effect. It achieves the facile separation and recovery of HMIs from the sewage, and more importantly, eliminates the risk of secondary contamination.
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Affiliation(s)
- Wei-Ming Yin
- Key Laboratory of Bio-based Material Science & Technology (Ministry of Education), College of Material Science and Engineering, Northeast Forestry University, Harbin 150040, China
| | - Yan Wang
- Harbin Center for Disease Control and Prevention (Harbin Center for Health Examination), Harbin 150030, China
| | - Yuan Sun
- Key Laboratory of Bio-based Material Science & Technology (Ministry of Education), College of Material Science and Engineering, Northeast Forestry University, Harbin 150040, China
| | - Nian-Dan Zhao
- Key Laboratory of Functional Inorganic Material Chemistry (Ministry of Education), School of Chemistry and Materials Science, Heilongjiang University, Harbin 150080, China
| | - Chen Wang
- Key Laboratory of Functional Inorganic Material Chemistry (Ministry of Education), School of Chemistry and Materials Science, Heilongjiang University, Harbin 150080, China
| | - Zhijun Chen
- Key Laboratory of Bio-based Material Science & Technology (Ministry of Education), College of Material Science and Engineering, Northeast Forestry University, Harbin 150040, China
| | - Yuan-Ru Guo
- Key Laboratory of Bio-based Material Science & Technology (Ministry of Education), College of Material Science and Engineering, Northeast Forestry University, Harbin 150040, China.
| | - Shujun Li
- Key Laboratory of Bio-based Material Science & Technology (Ministry of Education), College of Material Science and Engineering, Northeast Forestry University, Harbin 150040, China
| | - Qing-Jiang Pan
- Key Laboratory of Functional Inorganic Material Chemistry (Ministry of Education), School of Chemistry and Materials Science, Heilongjiang University, Harbin 150080, China
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Yin W, Zhao TL, Wang YH, Yao QZ, Zhou GT. Mn 3O 4@polyaniline nanocomposite with multiple active sites to capture uranium(VI) and iodide: synthesis, performance, and mechanism. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:30130-30143. [PMID: 36427123 DOI: 10.1007/s11356-022-24073-7] [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: 08/31/2022] [Accepted: 11/03/2022] [Indexed: 06/16/2023]
Abstract
A major challenge for radioactive wastewater treatment and associated environmental remediation is how to simultaneously remove cationic and anionic radionuclides. Herein, a series of Mn3O4@polyaniline (Mn3O4@PANI) nanocomposites were successfully prepared and used to remove U(VI) and I- from aqueous solution, two highly concomitant species in nuclear pollution settings. Batch adsorption experiments reveal that the component Mn3O4 is predominantly responsible for U(VI) removal, but PANI for I-. The nanocomposite with 24.2 wt% Mn3O4 possesses high removal percentages (> 85%) either for U(VI) or I- over a wide pH range, fast removal kinetics, and excellent adsorption selectivity at high concentrations of competing ions. Benefiting from the contributions of the two components and the high adsorption affinities, the nanocomposite achieves the simultaneous removal to coexisting U(VI) and I-, with a maximum adsorption capacity 102.6 mg/g for U(VI) and 126.1 mg/g for I-. X-ray photoelectron spectroscopy (XPS) results reveal that the U(VI) adsorption occurs via coordination bonding with Mn-O, -NH- , and =N- groups in the nanocomposite, whereas I- adsorption proceeds mainly through I anionic species exchange with Cl- and interactions with π-bonds in PANI, as well as the electrostatic attraction onto Mn3O4. Considering the excellent performance and multiple active sites, the Mn3O4@PANI nanocomposite is promising to remove practical radioactive U(VI) and I-.
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Affiliation(s)
- Wei Yin
- Deep Space Exploration Laboratory/School of Earth and Space Sciences, University of Science and Technology of China, Hefei, 230026, China
- CAS Key Laboratory of Crust-Mantle Materials and Environments, School of Earth and Space Sciences, University of Science and Technology of China, Hefei, 230026, China
| | - Tian-Lei Zhao
- Deep Space Exploration Laboratory/School of Earth and Space Sciences, University of Science and Technology of China, Hefei, 230026, China
- CAS Key Laboratory of Crust-Mantle Materials and Environments, School of Earth and Space Sciences, University of Science and Technology of China, Hefei, 230026, China
| | - Yu-Han Wang
- Deep Space Exploration Laboratory/School of Earth and Space Sciences, University of Science and Technology of China, Hefei, 230026, China
- CAS Key Laboratory of Crust-Mantle Materials and Environments, School of Earth and Space Sciences, University of Science and Technology of China, Hefei, 230026, China
| | - Qi-Zhi Yao
- School of Chemistry and Materials Science, University of Science and Technology of China, Hefei, 230026, China
| | - Gen-Tao Zhou
- Deep Space Exploration Laboratory/School of Earth and Space Sciences, University of Science and Technology of China, Hefei, 230026, China.
- CAS Key Laboratory of Crust-Mantle Materials and Environments, School of Earth and Space Sciences, University of Science and Technology of China, Hefei, 230026, China.
- CAS Center for Excellence in Comparative Planetology, Hefei, 230026, China.
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Shi YZ, Hu QH, Gao X, Zhang L, Liang RP, Qiu JD. A Flexible Indium-based Metal-Organic Framework with Ultrahigh Adsorption Capacity for Iodine Removal from Seawater. Sep Purif Technol 2023. [DOI: 10.1016/j.seppur.2023.123366] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/10/2023]
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6
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Mokhtari N, Dinari M. Developing novel amine-linked covalent organic frameworks towards reversible iodine capture. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2022.121948] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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7
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Robshaw TJ, Turner J, Tuck O, Pyke C, Kearney S, Simoni M, Sharrad CA, Walkley B, Ogden MD. Functionality screening to help design effective materials for radioiodine abatement. Front Chem 2022; 10:997147. [PMID: 36329859 PMCID: PMC9623042 DOI: 10.3389/fchem.2022.997147] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2022] [Accepted: 09/14/2022] [Indexed: 11/13/2022] Open
Abstract
This paper is part of a growing body of research work looking at the synthesis of an optimal adsorbent for the capture and containment of aqueous radioiodine from nuclear fuel reprocessing waste. 32 metalated commercial ion exchange resins were subjected to a two-tier screening assessment for their capabilities in the uptake of iodide from aqueous solutions. The first stage determined that there was appreciable iodide capacity across the adsorbent range (12–220 mg·g−1). Candidates with loading capacities above 40 mg·g−1 were progressed to the second stage of testing, which was a fractional factorial experimental approach. The different adsorbents were treated as discrete variables and concentrations of iodide, co-contaminants and protons (pH) as continuous variables. This gave rise to a range of extreme conditions, which were representative of the industrial challenges of radioiodine abatement. Results were fitted to linear regression models, both for the whole dataset (R2 = 59%) and for individual materials (R2 = 18–82%). The overall model determined that iodide concentration, nitrate concentration, pH and interactions between these factors had significant influences on the uptake. From these results, the top six materials were selected for project progression, with others discounted due to either poor uptake or noticeable iodide salt precipitation behaviour. These candidates exhibited reasonable iodide uptake in most experimental conditions (average of >20 mg·g−1 hydrated mass), comparing favourably with literature values for metallated adsorbents. Ag-loaded Purolite S914 (thiourea functionality) was the overall best-performing material, although some salt precipitation was observed in basic conditions. Matrix effects not withstanding it is recommended that metalated thiourea, bispicolylamine, and aminomethylphosphonic acid functionalized silicas warrant further exploration.
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Affiliation(s)
- Thomas J. Robshaw
- Department of Chemical and Biological Engineering, the University of Sheffield, Sheffield, United Kingdom
- Faculty of Life Sciences, University of Bradford, Bradford, United Kingdom
| | - Joshua Turner
- National Nuclear Laboratory, Central Laboratory, Sellafield, Seascale, United Kingdom
| | - Olivia Tuck
- National Nuclear Laboratory, Central Laboratory, Sellafield, Seascale, United Kingdom
| | - Caroline Pyke
- National Nuclear Laboratory, Central Laboratory, Sellafield, Seascale, United Kingdom
| | - Sarah Kearney
- Department of Chemical and Biological Engineering, the University of Sheffield, Sheffield, United Kingdom
| | - Marco Simoni
- Department of Chemical and Biological Engineering, the University of Sheffield, Sheffield, United Kingdom
| | - Clint A. Sharrad
- Department of Chemical Engineering and Analytical Science, the University of Manchester, Manchester, United Kingdom
| | - Brant Walkley
- Department of Chemical and Biological Engineering, the University of Sheffield, Sheffield, United Kingdom
| | - Mark D. Ogden
- Department of Chemical and Biological Engineering, the University of Sheffield, Sheffield, United Kingdom
- *Correspondence: Mark D. Ogden,
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8
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Wu J, Sun Q, Lu J. Catalytic ozonation of antibiotics by using Mg(OH) 2 nanosheet with dot-sheet hierarchical structure as novel nanoconfined catalyst. CHEMOSPHERE 2022; 302:134835. [PMID: 35525459 DOI: 10.1016/j.chemosphere.2022.134835] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/20/2021] [Revised: 04/29/2022] [Accepted: 04/30/2022] [Indexed: 06/14/2023]
Abstract
Antibiotic pollution has caused important concern for international and national sustainability. Catalytic ozonation is a quick and efficient technique to remove contaminants in aquatic environment. This study firstly developed a nanosheet-growth technique for synthesizing Li-doped Mg(OH)2 with dot-sheet hierarchical structure as catalyst to ozonize antibiotics. Metronidazole could be totally removed through ozonation catalyzed by Li-doped Mg(OH)2 in 10 min. Approximately 97% of metronidazole was eliminated in 10 min even the catalyst was used for 4 times. Reaction rate constant of Li-doped Mg(OH)2 treatment was about 3.45 times that of nano-Mg(OH)2 treatment, illustrating that the dot-sheet hierarchical structure of Li-doped Mg(OH)2 exhibited nano-confinement effect on the catalytic ozonation. Approximately 70.4% of metronidazole was mineralized by catalytic ozonation using Li-doped Mg(OH)2. Temperature of 25 °C was more suitable for catalytic ozonation of metronidazole by Li-doped Mg(OH)2. Ions generally inhibited the catalytic ozonation of metronidazole while only 0.005 mol L-1 of Cl- slightly enhanced the ozonation rate, illustrating complicated mechanisms existed for ozonation of metronidazole catalyzed by Li-doped Mg(OH)2. The possible mechanisms of the ozonation of metronidazole using Li-doped Mg(OH)2 included direct ozonation and ozonation catalyzed by radical ·O2-, reactive oxygen species 1O2 and intermediate (H2O2). The synthesized Mg(OH)2 nanosheet with dot-sheet hierarchical structure is a novel nanoconfined material with excellent reusability and catalytic performance.
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Affiliation(s)
- Jun Wu
- Yantai Research Institute, Harbin Engineering University, Yantai, 264006, PR China
| | - Qi Sun
- CAS Key Laboratory of Coastal Environmental Processes and Ecological Remediation, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai, Shandong, 264003, PR China
| | - Jian Lu
- CAS Key Laboratory of Coastal Environmental Processes and Ecological Remediation, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai, Shandong, 264003, PR China; Shandong Key Laboratory of Coastal Environmental Processes, Yantai, Shandong, 264003, PR China; Center for Ocean Mega-Science, Chinese Academy of Sciences, 7 Nanhai Road, Qingdao, 266071, PR China.
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Yin W, Liu M, Wang YH, Huang Y, Zhao TL, Yao QZ, Fu SQ, Zhou GT. Fe 3O 4-Mg(OH) 2 nanocomposite as a scavenger for silver nanoparticles: Rational design, facile synthesis, and enhanced performance. ENVIRONMENTAL RESEARCH 2022; 212:113292. [PMID: 35427596 DOI: 10.1016/j.envres.2022.113292] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/29/2021] [Revised: 03/28/2022] [Accepted: 04/08/2022] [Indexed: 06/14/2023]
Abstract
Silver nanoparticles (AgNPs) are considered as emerging contaminants because of their high toxicity and increasing environmental impact. Removal of discharged AgNPs from water is crucial for mitigating the health and environmental risks. However, developing facile, economical, and environment-friendly approaches remains challenging. Herein, an Fe3O4-Mg(OH)2 nanocomposite, as a novel magnetic scavenger for AgNPs, was prepared by loading Fe3O4 nanoparticles on Mg(OH)2 nanoplates in a one-pot synthesis. Batch removal experiments revealed that the maximum removal capacities for the two model AgNPs (citrate- or polyvinylpyrrolidone-coated AgNPs) were 476 and 442 mg/g, respectively, corresponding to partition coefficients 8.03 and 4.89 mg/g/μM. Removal feasibilities over a wide pH range of 5-11 and in real water matrices and scavenger reusability with five cycles were also confirmed. Both Fe3O4 and Mg(OH)2 components contributed to the removal; however, their nanocomposites exhibited an enhanced performance because of the high specific surface area and pore volume. Chemical adsorption and electrostatic attraction between the coatings on the AgNPs and the two components in the nanocomposite was considered to be responsible for the removal. Overall, the facile synthesis, convenient magnetic separation, and high removal performance highlight the great potential of the Fe3O4-Mg(OH)2 nanocomposite for practical applications.
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Affiliation(s)
- Wei Yin
- CAS Key Laboratory of Crust-Mantle Materials and Environments, School of Earth and Space Sciences, University of Science and Technology of China, Hefei, 230026, China
| | - Meng Liu
- CAS Key Laboratory of Crust-Mantle Materials and Environments, School of Earth and Space Sciences, University of Science and Technology of China, Hefei, 230026, China
| | - Yu-Han Wang
- CAS Key Laboratory of Crust-Mantle Materials and Environments, School of Earth and Space Sciences, University of Science and Technology of China, Hefei, 230026, China
| | - Yang Huang
- CAS Key Laboratory of Crust-Mantle Materials and Environments, School of Earth and Space Sciences, University of Science and Technology of China, Hefei, 230026, China
| | - Tian-Lei Zhao
- CAS Key Laboratory of Crust-Mantle Materials and Environments, School of Earth and Space Sciences, University of Science and Technology of China, Hefei, 230026, China
| | - Qi-Zhi Yao
- School of Chemistry and Materials Science, University of Science and Technology of China, Hefei, 230026, China.
| | - Sheng-Quan Fu
- Hefei National Laboratory for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei, 230026, China
| | - Gen-Tao Zhou
- CAS Key Laboratory of Crust-Mantle Materials and Environments, School of Earth and Space Sciences, University of Science and Technology of China, Hefei, 230026, China; CAS Center for Excellence in Comparative Planetology, Hefei, 230026, China.
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10
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Kumar I, Gangwar C, Yaseen B, Pandey PK, Mishra SK, Naik RM. Kinetic and Mechanistic Studies of the Formation of Silver Nanoparticles by Nicotinamide as a Reducing Agent. ACS OMEGA 2022; 7:13778-13788. [PMID: 35559139 PMCID: PMC9088940 DOI: 10.1021/acsomega.2c00046] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/04/2022] [Accepted: 04/01/2022] [Indexed: 05/11/2023]
Abstract
Here, in the present study, silver nanoparticles (SNPs) in the size range 6-10 nm have been synthesized by a chemical reduction method using nicotinamide (NTA), an anti-inflammatory agent, and cetyltrimethylammonium bromide (CTAB), a good stabilizing agent, to preparing the nanoparticles in the 6-10 nm size range. Kinetic studies on the formation of SNPs have been performed spectrophotometrically at 410 nm (strong plasmon band) in aqueous medium as a function of [AgNO3], [NTA], [NaOH], and [CTAB]. The plot of ln(A ∞ - A t ) versus time exhibited a straight line and the pseudo-first-order rate constants of different variables were calculated from its slope. On the basis of experimental findings, a plausible mechanism was proposed for the formation of SNPs colloid. From the mechanism, it is proved that the reduction of silver ions proceeded through the formation of silver oxide in colloidal form by their reaction with hydroxide ions and NTA after performing their function and readily undergo hydrolysis to form nicotinic acid as a hydrolysis product with the release of ammonia gas. The preliminary characterization of the SNPs was carried out by using a UV-visible spectrophotometer. The detailed characterization of SNPs was also carried out using other experimental techniques such as Fourier transform infrared spectroscopy (FTIR), field-emission scanning electron microscopy (FESEM), energy-dispersive X-ray spectroscopy (EDS), transmission electron microscopy (TEM), and powder X-ray diffraction (PXRD). SNPs show a remarkable catalytic activity of up to 90% for the reduction of the cationic dye methylene blue.
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Affiliation(s)
- Indresh Kumar
- Department
of Chemistry, Lucknow University, Lucknow 226007, Uttar Pradesh, India
| | - Chinky Gangwar
- Department
of Chemistry, Lucknow University, Lucknow 226007, Uttar Pradesh, India
| | - Bushra Yaseen
- Department
of Chemistry, Lucknow University, Lucknow 226007, Uttar Pradesh, India
| | - Pradeep Kumar Pandey
- Department
of Chemistry, Lucknow University, Lucknow 226007, Uttar Pradesh, India
| | - Sheo K. Mishra
- Department
of Physics, Indira Gandhi National Tribal
University, Amarkantak 484887, Madhya Pradesh, India
| | - Radhey Mohan Naik
- Department
of Chemistry, Lucknow University, Lucknow 226007, Uttar Pradesh, India
- Email for R.M.N.:
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Yaseen B, Gangwar C, Kumar I, Sarkar J, Naik RM. Detailed Kinetic and Mechanistic Study for the Preparation of Silver Nanoparticles by a Chemical Reduction Method in the Presence of a Neuroleptic Agent (Gabapentin) at an Alkaline pH and its Characterization. ACS OMEGA 2022; 7:5739-5750. [PMID: 35224334 PMCID: PMC8867805 DOI: 10.1021/acsomega.1c05499] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/03/2021] [Accepted: 01/27/2022] [Indexed: 05/05/2023]
Abstract
For the very first time, a detailed kinetic study for the preparation of silver nanoparticles (silver NPs) by neuroleptic agent gabapentin (GBP) in the absence of a stabilizer has been reported in this investigation. This paper is devoted to the preparation of silver nanoparticles by a chemical reduction method in which gabapentin acts as both a reductant and a stabilizer, and AgNO3 is used as a source of Ag+ ions and NaOH for maintaining the alkaline medium. A UV-visible spectrophotometer is used to monitor the progress of the reaction kinetics in an aqueous medium by changing the concentration of different variables such as AgNO3, NaOH, and gabapentin at 40 °C. It is found that the reaction rate follows a pseudo-first-order reaction. The thermodynamic activation parameters were also studied at five different temperatures (303, 308, 313, 318, and 323 K) and used in the support of the proposed mechanistic scheme for the formation of silver nanoparticles. The prepared silver nanoparticles were characterized using different techniques: UV-visible spectrophotometry, Fourier transform infrared spectroscopy, field emission scanning electron microscopy, energy-dispersive X-ray spectroscopy, transmission electron microscopy, and powder X-ray diffraction. The average particle size was observed in the range of 5-45 nm.
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12
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Wang T, Zhao H, Zhao X, Liu D. One-step preparation of Ag0-MOF composites for effective removal of iodide from water. J SOLID STATE CHEM 2022. [DOI: 10.1016/j.jssc.2021.122680] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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13
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Robshaw TJ, Turner J, Kearney S, Walkley B, Sharrad CA, Ogden MD. Capture of aqueous radioiodine species by metallated adsorbents from wastestreams of the nuclear power industry: a review. SN APPLIED SCIENCES 2021. [DOI: 10.1007/s42452-021-04818-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
Abstract
Abstract
Abstract
Iodine-129 poses a significant challenge in the drive towards lowering radionuclide emissions from used nuclear fuel recycling operations. Various techniques are employed for capture of gaseous iodine species, but it is also present, mainly as iodide anions, in problematic residual aqueous wastestreams, which have stimulated research interest in technologies for adsorption and retention of the radioiodine. This removal effort requires specialised adsorbents, which use soft metals to create selectivity in the challenging chemical conditions. A review of the literature, at laboratory scale, reveals a number of organic, inorganic and hybrid adsorbent matrices have been investigated for this purpose. They are functionalised principally by Ag metal, but also Bi, Cu and Pb, using numerous synthetic strategies. The iodide capacity of the adsorbents varies from 13 to 430 mg g−1, with ion-exchange resins and titanates displaying the highest maximum uptakes. Kinetics of adsorption are often slow, requiring several days to reach equilibrium, although some ligated metal ion and metal nanoparticle systems can equilibrate in < 1 h. Ag-loaded materials generally exhibit superior selectivity for iodide verses other common anions, but more consideration is required of how these materials would function successfully in industrial operation; specifically their performance in dynamic column experiments and stability of the bound radioiodine in the conversion to final wasteform and subsequent geological storage.
Article highlights
Metallated adsorbents for the capture and retention of radioiodine in the nuclear industry are assessed.
The strengths and weaknesses of organic, inorganic and hybrid support matrices and loading mechanisms are discussed.
Pathways for progression of this technology are proposed.
Graphic abstract
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14
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Sharma RK, Yadav S, Dutta S, Kale HB, Warkad IR, Zbořil R, Varma RS, Gawande MB. Silver nanomaterials: synthesis and (electro/photo) catalytic applications. Chem Soc Rev 2021; 50:11293-11380. [PMID: 34661205 DOI: 10.1039/d0cs00912a] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
In view of their unique characteristics and properties, silver nanomaterials (Ag NMs) have been used not only in the field of nanomedicine but also for diverse advanced catalytic technologies. In this comprehensive review, light is shed on general synthetic approaches encompassing chemical reduction, sonochemical, microwave, and thermal treatment among the preparative methods for the syntheses of Ag-based NMs and their catalytic applications. Additionally, some of the latest innovative approaches such as continuous flow integrated with MW and other benign approaches have been emphasized that ultimately pave the way for sustainability. Moreover, the potential applications of emerging Ag NMs, including sub nanomaterials and single atoms, in the field of liquid-phase catalysis, photocatalysis, and electrocatalysis as well as a positive role of Ag NMs in catalytic reactions are meticulously summarized. The scientific interest in the synthesis and applications of Ag NMs lies in the integrated benefits of their catalytic activity, selectivity, stability, and recovery. Therefore, the rise and journey of Ag NM-based catalysts will inspire a new generation of chemists to tailor and design robust catalysts that can effectively tackle major environmental challenges and help to replace noble metals in advanced catalytic applications. This overview concludes by providing future perspectives on the research into Ag NMs in the arena of electrocatalysis and photocatalysis.
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Affiliation(s)
- Rakesh Kumar Sharma
- Green Chemistry Network Centre, University of Delhi, New Delhi-110007, India.
| | - Sneha Yadav
- Green Chemistry Network Centre, University of Delhi, New Delhi-110007, India.
| | - Sriparna Dutta
- Green Chemistry Network Centre, University of Delhi, New Delhi-110007, India.
| | - Hanumant B Kale
- Department of Industrial and Engineering Chemistry, Institute of Chemical Technology, Mumbai-Marathwada Campus, Jalna-431213, Maharashtra, India.
| | - Indrajeet R Warkad
- Department of Industrial and Engineering Chemistry, Institute of Chemical Technology, Mumbai-Marathwada Campus, Jalna-431213, Maharashtra, India.
| | - Radek Zbořil
- Regional Centre of Advanced Technologies and Materials, Czech Advanced Technology and Research Institute, Palacký University, Šlechtitelů 27, 779 00 Olomouc, Czech Republic.,Nanotechnology Centre, CEET, VŠB-Technical University of Ostrava, 17. listopadu 2172/15, 708 00 Ostrava-Poruba, Czech Republic
| | - Rajender S Varma
- Regional Centre of Advanced Technologies and Materials, Czech Advanced Technology and Research Institute, Palacký University, Šlechtitelů 27, 779 00 Olomouc, Czech Republic.,U. S. Environmental Protection Agency, ORD, Center for Environmental Solutions and Emergency Response Water Infrastructure Division/Chemical Methods and Treatment Branch, 26 West Martin Luther King Drive, MS 483 Cincinnati, Ohio 45268, USA.
| | - Manoj B Gawande
- Department of Industrial and Engineering Chemistry, Institute of Chemical Technology, Mumbai-Marathwada Campus, Jalna-431213, Maharashtra, India.
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Liu M, Yin W, Zhao TL, Yao QZ, Fu SQ, Zhou GT. High-efficient removal of organic dyes from model wastewater using Mg(OH)2-MnO2 nanocomposite: Synergistic effects of adsorption, precipitation, and photodegradation. Sep Purif Technol 2021. [DOI: 10.1016/j.seppur.2021.118901] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
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16
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Yang L, Yu Y, Yang W, Li X, Zhang G, Shen Y, Dong F, Sun Y. Efficient visible light photocatalytic NO abatement over SrSn(OH) 6 nanowires loaded with Ag/Ag 2O cocatalyst. ENVIRONMENTAL RESEARCH 2021; 201:111521. [PMID: 34214565 DOI: 10.1016/j.envres.2021.111521] [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: 03/31/2021] [Revised: 05/17/2021] [Accepted: 06/08/2021] [Indexed: 06/13/2023]
Abstract
SrSn(OH)6 (SSOH) possesses a high oxidation potential in the valence band (VB), which is suitable for photocatalytic oxidation removal of pollutants. However, the electrons in the VB of these catalysts are difficult to transition to the conduction band (CB) under visible light, which makes it difficult to utilize sunlight effectively. In this work, Ag/Ag2O is loaded on the surface of SSOH nanowires, which stimulates the interfacial charge-transfer transition on SSOH. Compared with pure-phase SSOH, the NO abatement ratio of Ag/Ag2O-SSOH under visible light irradiation is increased to 45.10%. The e- in the VB of Ag2O are excited into the CB under visible light, and are further transferred to the Ag to react with O2 to produce superoxide radicals. The photo-excited e- in the VB of SSOH enter into the VB of Ag2O through interfacial charge-transfer transition to recombine with the photo-generated holes in the VB of Ag2O, thereby leaving photo-generated holes in the VB of SSOH. The holes in the VB of SSOH have sufficient oxidizing ability to oxidize the adsorbed hydroxyl groups into hydroxyl radicals. This work provides a new perspective for photocatalytic removal of pollutants by wide band gap photocatalyst under visible light.
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Affiliation(s)
- Lin Yang
- Chongqing Key Laboratory of Catalysis and New Environmental Materials, College of Environment and Resources, National Research Base of Intelligent Manufacturing Service, Chongqing Technology and Business University, Chongqing, 400067, China
| | - Yangyang Yu
- Yangtze Delta Region Institute (Huzhou) & Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Huzhou, 313001, China.
| | - Wenjia Yang
- Chongqing Key Laboratory of Catalysis and New Environmental Materials, College of Environment and Resources, National Research Base of Intelligent Manufacturing Service, Chongqing Technology and Business University, Chongqing, 400067, China
| | - Xiaofang Li
- Chongqing Key Laboratory of Catalysis and New Environmental Materials, College of Environment and Resources, National Research Base of Intelligent Manufacturing Service, Chongqing Technology and Business University, Chongqing, 400067, China
| | - Guo Zhang
- Chongqing Key Laboratory of Catalysis and New Environmental Materials, College of Environment and Resources, National Research Base of Intelligent Manufacturing Service, Chongqing Technology and Business University, Chongqing, 400067, China
| | - Yu Shen
- Chongqing Key Laboratory of Catalysis and New Environmental Materials, College of Environment and Resources, National Research Base of Intelligent Manufacturing Service, Chongqing Technology and Business University, Chongqing, 400067, China
| | - Fan Dong
- Chongqing Key Laboratory of Catalysis and New Environmental Materials, College of Environment and Resources, National Research Base of Intelligent Manufacturing Service, Chongqing Technology and Business University, Chongqing, 400067, China; Yangtze Delta Region Institute (Huzhou) & Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Huzhou, 313001, China; State Centre for International Cooperation on Designer Low Carbon and Environmental Materials (CDLCEM), School of Materials Science and Engineering, Zhengzhou University, Zhengzhou, 450001, China
| | - Yanjuan Sun
- Chongqing Key Laboratory of Catalysis and New Environmental Materials, College of Environment and Resources, National Research Base of Intelligent Manufacturing Service, Chongqing Technology and Business University, Chongqing, 400067, China; Yangtze Delta Region Institute (Huzhou) & School of Resources and Environment, University of Electronic Science and Technology of China, Huzhou, 313001, China.
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17
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Silver-decorated ZIF-8 derived ZnO concave nanocubes for efficient photooxidation-adsorption of iodide anions: An in-depth experimental and theoretical investigation. J SOLID STATE CHEM 2021. [DOI: 10.1016/j.jssc.2021.122039] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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18
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Park JE, Shim HE, Mushtaq S, Choi YJ, Jeon J. A functionalized nanocomposite adsorbent for the sequential removal of radioactive iodine and cobalt ions in aqueous media. KOREAN J CHEM ENG 2020. [DOI: 10.1007/s11814-020-0668-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
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19
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Yang S, Liang L, Liu L, Yin Y, Liu Y, Lei G, Zhou K, Huang Q, Wu H. Using MgO nanoparticles as a potential platform to precisely load and steadily release Ag ions for enhanced osteogenesis and bacterial killing. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2020; 119:111399. [PMID: 33321576 DOI: 10.1016/j.msec.2020.111399] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/15/2020] [Revised: 07/31/2020] [Accepted: 08/19/2020] [Indexed: 12/14/2022]
Abstract
Bio-functional fillers including bio-ceramic, degradable metallic and composite particles are commonly introduced into bone tissue engineering (BTE) scaffolds to endow the materials with specific biological functions for enhanced bone defect therapy. In this work, MgO nanoparticles (NPs) were employed as a potential platform for precise loading and sustained release of Ag+. The results showed that MgO NPs possessed strong adsorption capacity (almost 100%) towards Ag+ in AgNO3 solutions with different concentrations (0.1, 1 and 10 mM). After the adsorption of Ag+ in AgNO3 solutions, cube-shaped MgO NPs transformed to lamella-structured nano-composites (NCs) composed of Mg(OH)2 and Ag2O, which were referred as MgO-xAg (x = 0.1, 1 or 10) NCs depending on the employed concentration of AgNO3 solution. After being suspended in distilled water, as-prepared positively charged NCs underwent a fast degradation process during the initial 4 days. From day 4 and 14, steady release behaviors of Mg2+ and/or Ag+ from the NCs were noticed. With the lowest loading amount of Ag+, MgO-0.1Ag NCs did not exhibit significant modulatory effect on SaOS-2 cell response. On the contrary, MgO-10Ag NCs loaded with the highest amount of Ag+ showed significant cyto-toxicity towards SaOS-2 cells. With appropriate amount of Ag+ loading, MgO-1Ag NCs showed significantly stimulatory effects on SaOS-2 cell proliferation and differentiation. This is evidenced by the enhanced cell viability, alkaline phosphatase (ALP) activity and collagen (COL) production as well as the gene expressions of ALP, COL and osteoprotegerin (OPG) in MgO-1Ag group. Moreover, MgO-1Ag exhibited strong bactericidal capacity against both Escherichia coli and Staphylococcus aureus. Together, the results indicate that MgO could be employed as a potential platform for precise loading and sustained release of Ag+. MgO-1Ag NCs are promising to be used as bio-functional fillers in BTE scaffolds for simultaneously promoted osteogenesis and bacterial killing.
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Affiliation(s)
- Si Yang
- State Key Laboratory of Powder Metallurgy, Central South University, Changsha 410083, PR China
| | - Luxin Liang
- State Key Laboratory of Powder Metallurgy, Central South University, Changsha 410083, PR China
| | - Ling Liu
- Hepatobiliary and Pancreatic Surgery Department, Xiangya Hospital, Central South University, Changsha 410008, PR China
| | - Yong Yin
- State Key Laboratory of Powder Metallurgy, Central South University, Changsha 410083, PR China; School of Mechanical and Aerospace Engineering, Nanyang Technological University, Singapore 639798, Singapore
| | - Yong Liu
- State Key Laboratory of Powder Metallurgy, Central South University, Changsha 410083, PR China
| | - Guanghua Lei
- Department of Orthopaedics, Xiangya Hospital, Central South University, Changsha 410008, PR China
| | - Kun Zhou
- School of Mechanical and Aerospace Engineering, Nanyang Technological University, Singapore 639798, Singapore
| | - Qianli Huang
- State Key Laboratory of Powder Metallurgy, Central South University, Changsha 410083, PR China.
| | - Hong Wu
- State Key Laboratory of Powder Metallurgy, Central South University, Changsha 410083, PR China.
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20
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Yin W, Liu M, Zhao TL, Qian FJ, Li H, Yao QZ, Fu SQ, Zhou GT. Removal and recovery of silver nanoparticles by hierarchical mesoporous calcite: Performance, mechanism, and sustainable application. ENVIRONMENTAL RESEARCH 2020; 187:109699. [PMID: 32480024 DOI: 10.1016/j.envres.2020.109699] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/03/2019] [Revised: 05/17/2020] [Accepted: 05/17/2020] [Indexed: 06/11/2023]
Abstract
The widespread use of silver nanoparticles (AgNPs) inevitably leads to the environmental release of AgNPs. The released AgNPs can pose ecological risks because of their specific toxicity. However, they can also be used as secondary sources of silver metal. Herein, hierarchical mesoporous calcite (HMC) was prepared and used to remove and recover AgNPs from an aqueous solution. The batch experiments show that the HMC has high removal percentages for polyvinylpyrrolidone- and poly (vinyl alcohol)-coated AgNPs (PVP- and PVA-AgNPs) over a wide pH range of 6-10. The adsorption isotherms indicate that the maximum removal capacities are 55 and 19 mg g-1 for PVP-AgNPs and PVA-AgNPs, respectively, corresponding to partition coefficients (PCs) of 0.55 and 0.77 mg g-1 μM-1. Furthermore, the removal performance is also not impaired by coexisting anions, such as Cl-, NO3-, SO42-, and CO32-. Their removal mechanisms can be ascribed to the electrostatic attraction and chemical adsorption between the HMC and polymer-coated AgNPs. Calcium ions on the HMC surface serve as active sites for coordination with the oxygen-bearing functional groups of AgNP coatings. Moreover, the AgNPs adsorbed onto HMC show high catalytic activity and good reusability for the reduction of the organic pollutant 4-nitrophenol. This work may pave the way not only to remove metal nanopollutants from waters but also to convert them into functional materials.
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Affiliation(s)
- Wei Yin
- CAS Key Laboratory of Crust-Mantle Materials and Environments, School of Earth and Space Sciences, University of Science and Technology of China, Hefei, 230026, China
| | - Meng Liu
- CAS Key Laboratory of Crust-Mantle Materials and Environments, School of Earth and Space Sciences, University of Science and Technology of China, Hefei, 230026, China
| | - Tian-Lei Zhao
- CAS Key Laboratory of Crust-Mantle Materials and Environments, School of Earth and Space Sciences, University of Science and Technology of China, Hefei, 230026, China
| | - Fei-Jin Qian
- CAS Key Laboratory of Crust-Mantle Materials and Environments, School of Earth and Space Sciences, University of Science and Technology of China, Hefei, 230026, China
| | - Han Li
- CAS Key Laboratory of Crust-Mantle Materials and Environments, School of Earth and Space Sciences, University of Science and Technology of China, Hefei, 230026, China
| | - Qi-Zhi Yao
- School of Chemistry and Materials Science, University of Science and Technology of China, Hefei, 230026, China.
| | - Sheng-Quan Fu
- Hefei National Laboratory for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei, 230026, China
| | - Gen-Tao Zhou
- CAS Key Laboratory of Crust-Mantle Materials and Environments, School of Earth and Space Sciences, University of Science and Technology of China, Hefei, 230026, China; CAS Center for Excellence in Comparative Planetology, University of Science and Technology of China, Hefei, 230026, China.
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21
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Inglezakis VJ, Satayeva A, Yagofarova A, Tauanov Z, Meiramkulova K, Farrando-Pérez J, Bear JC. Surface Interactions and Mechanisms Study on the Removal of Iodide from Water by Use of Natural Zeolite-Based Silver Nanocomposites. NANOMATERIALS (BASEL, SWITZERLAND) 2020; 10:E1156. [PMID: 32545557 PMCID: PMC7353426 DOI: 10.3390/nano10061156] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/03/2020] [Revised: 04/27/2020] [Accepted: 04/27/2020] [Indexed: 12/01/2022]
Abstract
In this work a natural zeolite was modified with silver following two different methods to derive Ag2O and Ag0 nanocomposites. The materials were fully characterized and the results showed that both materials were decorated with nanoparticles of size of 5-25 nm. The natural and modified zeolites were used for the removal of iodide from aqueous solutions of initial concentration of 30-1400 ppm. Natural zeolite showed no affinity for iodide while silver forms were very efficient reaching a capacity of up to 132 mg/g. Post-adsorption characterizations showed that AgI was formed on the surface of the modified zeolites and the amount of iodide removed was higher than expected based on the silver content. A combination of experimental data and characterizations indicate that the excess iodide is most probably related to negatively charged AgI colloids and Ag-I complexes forming in the solution as well as on the surface of the modified zeolites.
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Affiliation(s)
- Vassilis J. Inglezakis
- Department of Chemical & Materials Engineering, School of Engineering and Digital Sciences, Nazarbayev University, Nur Sultan 010000, Kazakhstan; (A.S.); (A.Y.)
- Environment & Resource Efficiency Cluster (EREC), Nazarbayev University, Nur Sultan 010000, Kazakhstan
| | - Aliya Satayeva
- Department of Chemical & Materials Engineering, School of Engineering and Digital Sciences, Nazarbayev University, Nur Sultan 010000, Kazakhstan; (A.S.); (A.Y.)
- Environment & Resource Efficiency Cluster (EREC), Nazarbayev University, Nur Sultan 010000, Kazakhstan
| | - Almira Yagofarova
- Department of Chemical & Materials Engineering, School of Engineering and Digital Sciences, Nazarbayev University, Nur Sultan 010000, Kazakhstan; (A.S.); (A.Y.)
- Environment & Resource Efficiency Cluster (EREC), Nazarbayev University, Nur Sultan 010000, Kazakhstan
| | - Zhandos Tauanov
- Faculty of Chemistry and Chemical Technology, al-Farabi Kazakh National University, Almaty 050040, Kazakhstan;
| | - Kulyash Meiramkulova
- Department of Environmental Engineering & Management, L.N.Gumilyov Eurasian National University, Nur Sultan 010000, Kazakhstan;
| | - Judit Farrando-Pérez
- Laboratorio de Materiales Avanzados, Departamento de Química Inorgánica-Instituto Universitario de Materiales, Universidad de Alicante, 03690 Alicante, Spain;
| | - Joseph C. Bear
- School of Life Science, Pharmacy & Chemistry, Kingston University, Penrhyn Road, Kingston upon Thames KT1 2EE, UK;
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22
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Baimenov A, Berillo D, Inglezakis V. Cryogel-based Ag°/Ag2O nanocomposites for iodide removal from water. J Mol Liq 2020. [DOI: 10.1016/j.molliq.2019.112134] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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23
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Chen J, Wang J, Gao Q, Zhang X, Liu Y, Wang P, Jiao Y, Zhang Z, Yang Y. Enhanced removal of I - on hierarchically structured layered double hydroxides by in suit growth of Cu/Cu 2O. J Environ Sci (China) 2020; 88:338-348. [PMID: 31862075 DOI: 10.1016/j.jes.2019.09.024] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2019] [Revised: 09/17/2019] [Accepted: 09/18/2019] [Indexed: 06/10/2023]
Abstract
To further improve the removal ability of layered double hydroxide (LDH) for iodide (I-) anions from wastewater, we prepared hierarchically porous Cu5Mg10Al5-LDH and used as a matrix for in suit growth of Cu/Cu2O on its surface, forming Cu/Cu2O-LDH, which was characterized and applied as an adsorbent. Results displayed high I- saturation uptake capability (137.8 mg/g) of Cu/Cu2O-LDH compared with Cu5Mg10Al5-LDH (26.4 mg/g) even thermal activated LDH (76.1 mg/g). Thermodynamic analysis showed that the reaction between I- anions and Cu/Cu2O-LDH is a spontaneous and exothermic. Uptake kinetics analysis exhibited that adsorption equilibrium can be reached after 265 min. Additionally, the adsorbent showed satisfactory selectivity in the presence of competitive anions (e.g., SO42-), and could achieve good adsorption performance in a wide pH range of 3-8. A cooperative adsorption mechanism was proposed on the basis of the following two aspects: (1) ion exchange between iodide and interlayer anions; (2) the adsorption performance of Cu, Cu(II) and Cu2O for I-. Meanwhile, the difference between the adsorption mechanism of Cu/Cu2O-LDH, Cu5Mg10Al5-LDH and Cu5Mg10Al5-CLDH adsorbents was also elaborated and verified.
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Affiliation(s)
- Jiuyu Chen
- Jiangsu Key Laboratory of Chemical Pollution Control and Resources Reuse, School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing 210094, China
| | - Junyi Wang
- Jiangsu Key Laboratory of Chemical Pollution Control and Resources Reuse, School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing 210094, China
| | - Qianhong Gao
- Jiangsu Key Laboratory of Chemical Pollution Control and Resources Reuse, School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing 210094, China
| | - Xiaomei Zhang
- Jiangsu Key Laboratory of Chemical Pollution Control and Resources Reuse, School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing 210094, China
| | - Ying Liu
- Jiangsu Key Laboratory of Chemical Pollution Control and Resources Reuse, School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing 210094, China
| | - Peng Wang
- Jiangsu Key Laboratory of Chemical Pollution Control and Resources Reuse, School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing 210094, China.
| | - Yan Jiao
- Collaborative Innovation Center of Atmospheric Environment and Equipment Technology, Jiangsu Key Laboratory of Atmospheric Environment Monitoring and Pollution Control (AEMPC), Nanjing University of Information Science & Technology, Nanjing 210044, China
| | - Zongxiang Zhang
- Jiangsu Environmental Protection Key Laboratory of Monitoring for Organic Pollutants in Soil, Taizhou Environmental Monitoring Center, Taizhou 225300, China
| | - Yi Yang
- Jiangsu Key Laboratory of Chemical Pollution Control and Resources Reuse, School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing 210094, China; Collaborative Innovation Center of Atmospheric Environment and Equipment Technology, Jiangsu Key Laboratory of Atmospheric Environment Monitoring and Pollution Control (AEMPC), Nanjing University of Information Science & Technology, Nanjing 210044, China.
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Polo AMS, Lopez-Peñalver JJ, Sánchez-Polo M, Rivera-Utrilla J, López-Ramón MV, Rozalén M. Halide removal from water using silver doped magnetic-microparticles. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2020; 253:109731. [PMID: 31665690 DOI: 10.1016/j.jenvman.2019.109731] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/28/2019] [Revised: 10/02/2019] [Accepted: 10/16/2019] [Indexed: 06/10/2023]
Abstract
This study proposes the use of new materials based on core-shell structure magnetic microparticles with Ag0 (Ag(0)-MPs) on their surface to remove bromides and chlorides from waters intended for human consumption. Hydrogen peroxide was used as oxidizing agent, Ag(0)-MPs is thereby oxidized to Ag (I)-MPs, which, when in contact with Cl- and Br- ions, form the corresponding silver halide (AgCl and AgBr) on the surface of Ag-MPs. The concentration of Cl- and Br- ions was followed by using ion selective electrodes (ISEs). Silver microparticles were characterized by high-resolution scanning electron microscopy and X-ray photoelectron spectroscopy, while the presence of AgCl and AgBr on Ag-MPs was determined by microanalysis. We analyzed the influence of operational variables, including: hydrogen peroxide concentration in Ag-MP system, medium pH, influence of Cl- ions on Br- ion removal, and influence of tannic acid as surrogate of organic matter in the medium. Regarding the influence of pH, Br-and Cl- removal was constant within the pH range studied (3.5-7), being more effective for Br- than for Cl- ions. Accordingly, this research states that the system Ag-MPs/H2O2 can remove up to 67.01% of Br- ions and 56.92% of Cl- ions from water (pH = 7, [Ag-MPs]0 = 100 mg L-1, [H2O2]0 = 0.2 mM); it is reusable, regenerated by radiation and can be easily removed by applying a magnetically assisted chemical separation process.
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Affiliation(s)
- A M S Polo
- Department of Inorganic Chemistry, Faculty of Science, University of Granada, Campus Fuentenueva s/n, ES18071, Granada, Spain
| | - J J Lopez-Peñalver
- Department of Inorganic Chemistry, Faculty of Science, University of Granada, Campus Fuentenueva s/n, ES18071, Granada, Spain
| | - M Sánchez-Polo
- Department of Inorganic Chemistry, Faculty of Science, University of Granada, Campus Fuentenueva s/n, ES18071, Granada, Spain.
| | - J Rivera-Utrilla
- Department of Inorganic Chemistry, Faculty of Science, University of Granada, Campus Fuentenueva s/n, ES18071, Granada, Spain
| | - M V López-Ramón
- Department of Inorganic and Organic Chemistry, Faculty of Science, University of Jaén, Campus Las Lagunillas s/n, ES23071, Jaén, Spain
| | - M Rozalén
- Department of Inorganic Chemistry, Faculty of Science, University of Granada, Campus Fuentenueva s/n, ES18071, Granada, Spain
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25
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Chakraborty U, Bhanjana G, Adam J, Mishra YK, Kaur G, Chaudhary GR, Kaushik A. A flower-like ZnO–Ag2O nanocomposite for label and mediator free direct sensing of dinitrotoluene. RSC Adv 2020; 10:27764-27774. [PMID: 35686162 PMCID: PMC9127653 DOI: 10.1039/d0ra02826f] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2020] [Accepted: 05/27/2020] [Indexed: 12/25/2022] Open
Abstract
2,4-Dinitrotoluene (2,4-DNT) is a nitro aromatic compound used as a raw material for trinitrotoluene (TNT) explosive synthesis along with several other industrial applications. Easy, rapid, cost-effective, and selective detection of 2,4-DNT is becoming essential due to its hepato carcinogenic nature and presence in surface as well as ground water as a contaminant. Keeping this in view, this research, for the first-time, reports the synthesis of novel ZnO–Ag2O composite nanoflowers on a gold (Au) substrate, to fabricate an electrochemical sensor for label-free, direct sensing of 2,4-DNT selectively. The proposed ZnO–Ag2O/Au sensor exhibits a sensitivity of 5 μA μM−1 cm−2 with a low limit of detection (LOD) of 13 nM, in a linear dynamic range (LDR) of 0.4 μM to 40 μM. The sensor showed reasonably high re-usability and reproducibility, with reliable results for laboratory and real-world samples. 2,4-Dinitrotoluene (2,4-DNT) is a nitro aromatic compound used as a raw material for trinitrotoluene (TNT) explosive synthesis along with several other industrial applications.![]()
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Affiliation(s)
- Urmila Chakraborty
- Department of Chemistry
- Centre of Advanced Studies in Chemistry
- Panjab University
- Chandigarh
- India
| | - Gaurav Bhanjana
- Department of Chemistry
- Centre of Advanced Studies in Chemistry
- Panjab University
- Chandigarh
- India
| | - Jost Adam
- Mads Clausen Institute
- University of Southern Denmark
- Sønderborg
- Denmark
| | | | - Gurpreet Kaur
- Department of Chemistry
- Centre of Advanced Studies in Chemistry
- Panjab University
- Chandigarh
- India
| | - Ganga Ram Chaudhary
- Department of Chemistry
- Centre of Advanced Studies in Chemistry
- Panjab University
- Chandigarh
- India
| | - Ajeet Kaushik
- NanoBioTech Laboratory
- Department of Natural Sciences
- Division of Science, Arts & Mathematics
- Florida Polytechnic University
- Lakeland-33805
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26
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Tauanov Z, Inglezakis VJ. Removal of iodide from water using silver nanoparticles-impregnated synthetic zeolites. THE SCIENCE OF THE TOTAL ENVIRONMENT 2019; 682:259-270. [PMID: 31125740 DOI: 10.1016/j.scitotenv.2019.05.106] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/26/2019] [Revised: 04/30/2019] [Accepted: 05/08/2019] [Indexed: 06/09/2023]
Abstract
Synthetic zeolite-based Ag-nanocomposites were synthesized, characterized and used to remove iodide from aqueous solutions. The results showed high removal efficiency (up to 94.85%) and the formation silver iodide which is stable into the material. The maximum achieved adsorption capacity of the nanocomposites was between 19.54 and 20.44mg/g. The removal mechanism was meticulously studied by taking into account both water chemistry and surface interactions backed by multiple characterization techniques, such as XRD, XRF, SEM/EDX, TEM and BET. The qualitative and quantitative examination of pre- and post-adsorption of nanocomposite samples proved that the anchored silver iodide was formed via oxidation of initial silver nanoparticles followed by reaction with iodide to form a stable crystalline precipitate on the surface of the materials. A diffusion-based adsorption model indicated that the controlling mechanism is a slow intraparticle surface diffusion with diffusion coefficients in the range of 0.37-1.72×10-13cm2/s. The investigation of competing and co-existing anions (Cl-, Br-, CO32-, and CrO42-) on the removal efficiency of iodide demonstrated a negligible effect showing a kinetically favorable precipitation reaction of iodide over other anions.
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Affiliation(s)
- Z Tauanov
- The Environment & Resource Efficiency Cluster (EREC), Nazarbayev University, Astana 010000, Kazakhstan; Environmental Science & Technology Group (ESTg), Chemical & Materials Engineering Department, School of Engineering, Nazarbayev University, Astana 010000, Kazakhstan
| | - V J Inglezakis
- The Environment & Resource Efficiency Cluster (EREC), Nazarbayev University, Astana 010000, Kazakhstan; Environmental Science & Technology Group (ESTg), Chemical & Materials Engineering Department, School of Engineering, Nazarbayev University, Astana 010000, Kazakhstan.
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27
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Enhanced Potential Toxic Metal Removal Using a Novel Hierarchical SiO2–Mg(OH)2 Nanocomposite Derived from Sepiolite. MINERALS 2019. [DOI: 10.3390/min9050298] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Clays are widely used as sorbents for heavy metals due to their high specific surface areas, low cost, and ubiquitous occurrence in most soil and sediment environments. However, the low loading capacity for heavy metals is one of their inherent limitations. In this work, a novel SiO2–Mg(OH)2 nanocomposite was successfully prepared via sequential acid–base modification of raw sepiolite. The structural characteristics of the resulting modified samples were characterized by a wide range of techniques including field emission scanning electron microscopy (FESEM), transmission electron microscopy (TEM), energy dispersive X-ray spectroscopy (EDX), X-ray diffraction (XRD), and nitrogen physisorption analysis. The results show that a hierarchical nanocomposite constructed by loading the Mg(OH)2 nanosheets onto amorphous SiO2 nanotubes can be successfully prepared, and the nanocomposite has a high surface area (377.3 m2/g) and pore volume (0.96 cm3/g). Batch removal experiments indicate that the nanocomposite exhibits high removal efficiency toward Gd(III), Pb(II), and Cd(II), and their removal capacities were greatly enhanced in comparison with raw sepiolite, due to the synergistic effect of the different components in the hierarchical nanocomposite. This work can provide a novel route toward a hierarchical nanocomposite by using clay minerals as raw material. Taking into account the simplicity of the fabrication route and the high loading capacities for heavy metals, the developed nanocomposite also has great potential applications in water treatment.
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Zheng B, Liu X, Hu J, Wang F, Hu X, Zhu Y, Lv X, Du J, Xiao D. Construction of hydrophobic interface on natural biomaterials for higher efficient and reversible radioactive iodine adsorption in water. JOURNAL OF HAZARDOUS MATERIALS 2019; 368:81-89. [PMID: 30665111 DOI: 10.1016/j.jhazmat.2019.01.037] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/02/2018] [Revised: 12/15/2018] [Accepted: 01/14/2019] [Indexed: 06/09/2023]
Abstract
For the pollution of radioactive materials, it is of great importance to develop efficient adsorbents for radioactive iodine adsorption in aqueous solution. In this work, a simple and green strategy was developed to construct hydrophobic surface on natural cotton fibers (n-CF) based on organic-soluble carbon dots (OCDs) for the first time. The results demonstrated the successful constructed hydrophobic n-CF@OCDs expressed excellent stability and selectivity for iodine (I2) adsorption in water. The maximum adsorption capacity for I2 on n-CF@OCDs is calculated to be 190.1 mg g-1, which is about 6.8 times higher than that of n-CF (28.1 mg g-1), this highly I2 adsorption efficiency should be attributed to the hydrophobic properties of adsorbent. The adsorption mechanism was also discussed in this work. In addition, the adsorbed I2 could be desorbed easily with a simple reductive process at ambient conditions, which can lead to not only the restore of I2 but also the recycling of adsorbent, illustrating their good practicability. Furthermore, this universal strategy can also be used for construction of hydrophobic surface on various natural biomaterials, demonstrating its potential application in constructing of hydrophobic surface and used for the adsorption and removal of nonpolar pollutions or radioactive waste in aqueous solutions.
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Affiliation(s)
- Baozhan Zheng
- College of Chemistry, Sichuan University, Wangjiang Road, Chengdu 610064, PR China; Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu, 610064, China.
| | - Xiaoxia Liu
- College of Chemistry, Sichuan University, Wangjiang Road, Chengdu 610064, PR China
| | - Jing Hu
- College of Chemistry, Sichuan University, Wangjiang Road, Chengdu 610064, PR China
| | - Fengyi Wang
- College of Chemistry, Sichuan University, Wangjiang Road, Chengdu 610064, PR China
| | - Xuan Hu
- College of Chemistry, Sichuan University, Wangjiang Road, Chengdu 610064, PR China
| | - Yue Zhu
- College of Chemistry, Sichuan University, Wangjiang Road, Chengdu 610064, PR China
| | - Xu Lv
- College of Chemistry, Sichuan University, Wangjiang Road, Chengdu 610064, PR China
| | - Juan Du
- College of Chemistry, Sichuan University, Wangjiang Road, Chengdu 610064, PR China; Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu, 610064, China.
| | - Dan Xiao
- College of Chemistry, Sichuan University, Wangjiang Road, Chengdu 610064, PR China; Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu, 610064, China
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Li X, Chen G, Ma J, Jia Q. Pyrrolidinone-based hypercrosslinked polymers for reversible capture of radioactive iodine. Sep Purif Technol 2019. [DOI: 10.1016/j.seppur.2018.09.041] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
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30
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Chen J, Gao Q, Zhang X, Liu Y, Wang P, Jiao Y, Yang Y. Nanometer mixed-valence silver oxide enhancing adsorption of ZIF-8 for removal of iodide in solution. THE SCIENCE OF THE TOTAL ENVIRONMENT 2019; 646:634-644. [PMID: 30059924 DOI: 10.1016/j.scitotenv.2018.07.298] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/19/2018] [Revised: 07/19/2018] [Accepted: 07/20/2018] [Indexed: 06/08/2023]
Abstract
Nano mixed-valence silver oxide (Ag2O-Ag2O3) modified the zeolitic imidazolate framework-8 (ZIF-8) composite (Ag2O-Ag2O3@ZIF-8) was firstly prepared via a simple and efficient method, characterized and applied for iodide ion (I-) uptake from simulated radioactive wastewater. The results showed that Ag2O-Ag2O3 nanoparticles doped and uniformly dispersed on the surface of ZIF-8 matrix. The adsorption capacity of the as-synthesized adsorbents increased with the increasing Ag doped amount, and the maximum adsorption capacity for 20%-Ag2O-Ag2O3@ZIF-8 was 232.12 mg/g. The calculated thermodynamic parameters indicating that the adsorption was a spontaneous and exothermic. It was worth mentioning that each Ag-based adsorbent exhibited high uptake rate of I-, and all the adsorption tests were equilibrated for a few minutes. This could be ascribed to its large specific surface area and the absolutely dominant position of chemical adsorption for as-prepared samples. Furthermore, the adsorption was barely affected by pH and competitive anions (e.g. Cl-, SO42-, CO32-), even in simulated salt lake water. Additionally, a mechanism explaining the excellent properties for adsorbents could be epitomized into three aspects, namely, the uptake performance of Ag2O for I-, the strong oxidization of Ag2O3 for I-, and the adsorption of AgI for I2.
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Affiliation(s)
- Jiuyu Chen
- Jiangsu Key Laboratory of Chemical Pollution Control and Resources Reuse, School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing 210094, China
| | - Qianhong Gao
- Jiangsu Key Laboratory of Chemical Pollution Control and Resources Reuse, School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing 210094, China
| | - Xiaomei Zhang
- Jiangsu Key Laboratory of Chemical Pollution Control and Resources Reuse, School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing 210094, China
| | - Ying Liu
- Jiangsu Key Laboratory of Chemical Pollution Control and Resources Reuse, School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing 210094, China
| | - Peng Wang
- Jiangsu Key Laboratory of Chemical Pollution Control and Resources Reuse, School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing 210094, China
| | - Yan Jiao
- Collaborative Innovation Center of Atmospheric Environment and Equipment Technology, Jiangsu Key Laboratory of Atmospheric Environment Monitoring and Pollution Control (AEMPC), Nanjing University of Information Science & Technology, Nanjing 210044, China
| | - Yi Yang
- Jiangsu Key Laboratory of Chemical Pollution Control and Resources Reuse, School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing 210094, China; Collaborative Innovation Center of Atmospheric Environment and Equipment Technology, Jiangsu Key Laboratory of Atmospheric Environment Monitoring and Pollution Control (AEMPC), Nanjing University of Information Science & Technology, Nanjing 210044, China.
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31
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Li X, Chen G, Jia Q. Highly efficient iodine capture by task-specific polyethylenimine impregnated hypercrosslinked polymers. J Taiwan Inst Chem Eng 2018. [DOI: 10.1016/j.jtice.2018.09.023] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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32
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Shim HE, Yang JE, Jeong SW, Lee CH, Song L, Mushtaq S, Choi DS, Choi YJ, Jeon J. Silver Nanomaterial-Immobilized Desalination Systems for Efficient Removal of Radioactive Iodine Species in Water. NANOMATERIALS 2018; 8:nano8090660. [PMID: 30149661 PMCID: PMC6165405 DOI: 10.3390/nano8090660] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/06/2018] [Revised: 08/18/2018] [Accepted: 08/24/2018] [Indexed: 12/24/2022]
Abstract
Increasing concerns regarding the adverse effects of radioactive iodine waste have inspired the development of a highly efficient and sustainable desalination process for the treatment of radioactive iodine-contaminated water. Because of the high affinity of silver towards iodine species, silver nanoparticles immobilized on a cellulose acetate membrane (Ag-CAM) and biogenic silver nanoparticles containing the radiation-resistant bacterium Deinococcus radiodurans (Ag-DR) were developed and investigated for desalination performance in removing radioactive iodines from water. A simple filtration of radioactive iodine using Ag-CAM under continuous in-flow conditions (approximately 1.5 mL/s) provided an excellent removal efficiency (>99%) as well as iodide anion-selectivity. In the bioremediation study, the radioactive iodine was rapidly captured by Ag-DR in the presence of high concentration of competing anions in a short time. The results from both procedures can be visualized by using single-photon emission computed tomography (SPECT) scanning. This work presents a promising desalination method for the removal of radioactive iodine and a practical application model for remediating radioelement-contaminated waters.
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Affiliation(s)
- Ha Eun Shim
- Advanced Radiation Technology Institute, Korea Atomic Energy Research Institute, Jeongeup 56212, Korea.
- Department of Chemistry, Kyungpook National University, Daegu 41566, Korea.
| | - Jung Eun Yang
- Department of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology, Daejeon 34141, Korea.
| | - Sun-Wook Jeong
- School of Environmental Engineering, University of Seoul, Seoul 02504, Korea.
| | - Chang Heon Lee
- Advanced Radiation Technology Institute, Korea Atomic Energy Research Institute, Jeongeup 56212, Korea.
| | - Lee Song
- Advanced Radiation Technology Institute, Korea Atomic Energy Research Institute, Jeongeup 56212, Korea.
| | - Sajid Mushtaq
- Advanced Radiation Technology Institute, Korea Atomic Energy Research Institute, Jeongeup 56212, Korea.
- Radiation Biotechnology and Applied Radioisotope Science, University of Science and Technology, Daejeon 34113, Korea.
| | - Dae Seong Choi
- Advanced Radiation Technology Institute, Korea Atomic Energy Research Institute, Jeongeup 56212, Korea.
| | - Yong Jun Choi
- School of Environmental Engineering, University of Seoul, Seoul 02504, Korea.
| | - Jongho Jeon
- Advanced Radiation Technology Institute, Korea Atomic Energy Research Institute, Jeongeup 56212, Korea.
- Radiation Biotechnology and Applied Radioisotope Science, University of Science and Technology, Daejeon 34113, Korea.
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