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Wang D, Liang Y, Zeng Y, Liu C, Zhan C, Chen P, Song S, Jia F. Highly selective recovery of gold and silver from E-waste via stepwise electrodeposition directly from the pregnant leaching solution enabled by the MoS 2 cathode. JOURNAL OF HAZARDOUS MATERIALS 2024; 465:133430. [PMID: 38183940 DOI: 10.1016/j.jhazmat.2024.133430] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/30/2023] [Revised: 12/21/2023] [Accepted: 01/01/2024] [Indexed: 01/08/2024]
Abstract
The recycling of electronic waste, i.e., waste Printed Circuit Boards (WPCBs), provides substantial environmental and economic advantages. In fact, the concentration of valuable precious and base metals in WPCBs is even higher compared to those found in mined ores. Nevertheless, it is still challenging to selectively extract precious metals with low concentrations from the pregnant leaching solution, due to the co-deposition of base metals, like Cu, which have higher concentrations. In this research, stepwise recovery of precious metals and copper directly from WPCBs thiosulfate leaching solution was facilitated by the Ti cathode coated with MoS2 (MoS2/Ti). The in-situ enrichment of Au(S2O3)23- and Ag(S2O3)23- at the surface of MoS2 enables the high efficiency and selectivity of electrodeposition, which has been confirmed through COMSOL Multiphysics simulations and visualization. As a result, the first-step electrodeposition at 0.6 V recovered 92.44 % Au and 98.18 % Ag without any co-deposition of Cu. Subsequently, the second-step recovery employed a constant current of 0.03 A, achieving 100 % recovery of copper within 12 h. Furthermore, this study optimized the reduction potential, NH3·H2O concentration, and S2O32- concentration for the stepwise electrodeposition process. These findings provide valuable insights for establishing a closed loop circular economy in the electronics industry.
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Affiliation(s)
- Deshou Wang
- Key Laboratory of Green Utilization of Critical Non-metallic Mineral Resources of Ministry of Education, Wuhan University of Technology, Wuhan 430073, Hubei, China; School of Resources and Environmental Engineering, Wuhan University of Technology, Wuhan, Hubei Province 430070, China
| | - Yumeng Liang
- Key Laboratory of Green Utilization of Critical Non-metallic Mineral Resources of Ministry of Education, Wuhan University of Technology, Wuhan 430073, Hubei, China; School of Resources and Environmental Engineering, Wuhan University of Technology, Wuhan, Hubei Province 430070, China
| | - Yong Zeng
- Key Laboratory of Green Utilization of Critical Non-metallic Mineral Resources of Ministry of Education, Wuhan University of Technology, Wuhan 430073, Hubei, China; School of Resources and Environmental Engineering, Wuhan University of Technology, Wuhan, Hubei Province 430070, China
| | - Chang Liu
- Key Laboratory of Green Utilization of Critical Non-metallic Mineral Resources of Ministry of Education, Wuhan University of Technology, Wuhan 430073, Hubei, China; School of Resources and Environmental Engineering, Wuhan University of Technology, Wuhan, Hubei Province 430070, China
| | - Chun Zhan
- Department of Energy Storage Science and Engineering, School of Metallurgical and Ecological Engineering, University of Science and Technology Beijing, Beijing 100083, China
| | - Peng Chen
- Key Laboratory of Green Utilization of Critical Non-metallic Mineral Resources of Ministry of Education, Wuhan University of Technology, Wuhan 430073, Hubei, China; School of Resources and Environmental Engineering, Wuhan University of Technology, Wuhan, Hubei Province 430070, China.
| | - Shaoxian Song
- Key Laboratory of Green Utilization of Critical Non-metallic Mineral Resources of Ministry of Education, Wuhan University of Technology, Wuhan 430073, Hubei, China; School of Resources and Environmental Engineering, Wuhan University of Technology, Wuhan, Hubei Province 430070, China
| | - Feifei Jia
- Key Laboratory of Green Utilization of Critical Non-metallic Mineral Resources of Ministry of Education, Wuhan University of Technology, Wuhan 430073, Hubei, China; School of Resources and Environmental Engineering, Wuhan University of Technology, Wuhan, Hubei Province 430070, China.
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Deshwal N, Singh MB, Bahadur I, Kaushik N, Kaushik NK, Singh P, Kumari K. A review on recent advancements on removal of harmful metal/metal ions using graphene oxide: Experimental and theoretical approaches. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 858:159672. [PMID: 36306838 DOI: 10.1016/j.scitotenv.2022.159672] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/31/2022] [Revised: 10/16/2022] [Accepted: 10/19/2022] [Indexed: 06/16/2023]
Abstract
Graphene oxide is a two-dimensional carbon nanomaterial and has gained huge popularity over the last decade. Because, the graphene oxide can be dispersed in water easily and it is one of the most researched two-dimensional materials in the current time. The extraordinary properties shown by graphene oxide (GO) are due to its unique chemical structure; includes various hydrophilic functional groups containing oxygen such as carboxyl, hydroxyl, carbonyl and tiny sp2 carbon domains surrounded by sp3 domains. These groups are very peculiar for various applications as they allow covalent functionalisation with a plethora of compounds. Large surface area, intrinsic fluorescence, excellent surface functionality, amphiphilicity, improved conductivity, high adsorption capacity and superior biocompatibility are some of the chemical properties have drawn research from various fields. Graphene oxide has various interactions such as coordination, chelation, hydrogen bonding, electrostatic interaction, hydrophobic effects, π-π interaction, acid base interaction etc., with various metal ions. This review is focused on the removal of metals and metal ions due to their interactions mentioned above. Further, potential of composites of graphene oxide in the removal of metal and metal ions is also discussed. Further, the current challenges in this field at industrial-scale are also discussed.
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Affiliation(s)
- Nidhi Deshwal
- Department of Chemistry, Atma Ram Sanatan Dharma College, University of Delhi, New Delhi, India
| | - Madhur Babu Singh
- Department of Chemistry, Atma Ram Sanatan Dharma College, University of Delhi, New Delhi, India
| | - Indra Bahadur
- Department of Chemistry, Faculty of Natural and Agricultural Sciences, North-West University, South Africa
| | - Neha Kaushik
- Department of Biotechnology, College of Engineering, The University of Suwon, Hwaseong 18323, South Korea
| | - Nagendra Kumar Kaushik
- Plasma Bioscience Research Center, Department of Electrical and Biological Physics, Kwangwoon University, Seoul 01897, South Korea.
| | - Prashant Singh
- Department of Chemistry, Atma Ram Sanatan Dharma College, University of Delhi, New Delhi, India.
| | - Kamlesh Kumari
- Department of Zoology, University of Delhi, Delhi, India.
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3
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Synthesis of magnetic core-shell Fe3O4@MoS2-Ag composite for the efficient photocatalytic reduction of Cr(VI). Chem Phys Lett 2022. [DOI: 10.1016/j.cplett.2022.140148] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Zhou J, Zhang H, Xie T, Liu Y, Shen Q, Yang J, Cao L, Yang J. Highly efficient Hg 2+ removal via a competitive strategy using a Co-based metal organic framework ZIF-67. J Environ Sci (China) 2022; 119:33-43. [PMID: 35934463 DOI: 10.1016/j.jes.2021.08.032] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2021] [Revised: 08/06/2021] [Accepted: 08/17/2021] [Indexed: 06/15/2023]
Abstract
The stronger coordination ability of mercury ions with organic ligands than the metal ions in metal organic framework (MOFs) provides an accessible way to separate mercury ions from solution using specific MOFs. In this study, a Co-based MOF (ZIF-67, Co(mIM)2) was synthesized. It did not introduce specific functional groups, such as -SH and -NH2, into its structure through complicated steps. It separate Hg2+ from wastewater with a new strategy, which utilized the stronger coordination ability of Hg2+ with the nitrogen atom on the imidazole ring of the organic ligand than the Co2+ ions. Hg2+ replaced Co2+ nodes from ZIF-67 and formed a more stable precipitate with mIM. The experimental results showed that this new strategy was efficient. ZIF-67 exhibited Hg2+ adsorption capacity of 1740 mg/g, much higher than the known MOFs sorbents. mIMs is the reaction center and ZIF-67 can improve its utilization. The sample color faded from purple to white due to the loss of cobalt ion. It is a great feature of ZIF-67 that allows users to judge whether the sorbent is deactivated intuitively. ZIF-67 can be sustainable recycled by adding organic ligands to the solution after treatment due to its simple synthesis method at room temperature. It's a high-efficient and sustainable sorbent for Hg2+ separation from wastewater.
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Affiliation(s)
- Jiacheng Zhou
- School of Resources and Environmental Engineering, State Environmental Protection Key Laboratory of Environmental Risk Assessment and Control on Chemical Process, East China University of Science and Technology, Shanghai 200237, China
| | - Hao Zhang
- School of Resources and Environmental Engineering, State Environmental Protection Key Laboratory of Environmental Risk Assessment and Control on Chemical Process, East China University of Science and Technology, Shanghai 200237, China
| | - Tianying Xie
- School of Resources and Environmental Engineering, State Environmental Protection Key Laboratory of Environmental Risk Assessment and Control on Chemical Process, East China University of Science and Technology, Shanghai 200237, China
| | - Ye Liu
- School of Resources and Environmental Engineering, State Environmental Protection Key Laboratory of Environmental Risk Assessment and Control on Chemical Process, East China University of Science and Technology, Shanghai 200237, China
| | - Qicheng Shen
- School of Resources and Environmental Engineering, State Environmental Protection Key Laboratory of Environmental Risk Assessment and Control on Chemical Process, East China University of Science and Technology, Shanghai 200237, China
| | - Jie Yang
- School of Resources and Environmental Engineering, State Environmental Protection Key Laboratory of Environmental Risk Assessment and Control on Chemical Process, East China University of Science and Technology, Shanghai 200237, China
| | - Limei Cao
- School of Resources and Environmental Engineering, State Environmental Protection Key Laboratory of Environmental Risk Assessment and Control on Chemical Process, East China University of Science and Technology, Shanghai 200237, China; Shanghai Institute of Pollution Control and Ecological Security, Shanghai 200092, China.
| | - Ji Yang
- School of Resources and Environmental Engineering, State Environmental Protection Key Laboratory of Environmental Risk Assessment and Control on Chemical Process, East China University of Science and Technology, Shanghai 200237, China; Shanghai Institute of Pollution Control and Ecological Security, Shanghai 200092, China.
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5
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Liu C, Yang B, Jia F, Song S. Construction of MoS 2@Activated Alumina Beads as Catalysts for Rapid Gold Recovery from Au(S 2O 3) 23- Solution. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2022; 38:8054-8064. [PMID: 35734859 DOI: 10.1021/acs.langmuir.2c00847] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Gold recovery from thiosulfate leaching solution Au(S2O3)23- is regarded as a tough task because of the low efficiency and complex procedure in current technology, which hindered the industrial application of this eco-friendly technique. In this work, a MoS2@activated alumina bead composite (MoS2@AA) was constructed through a simple hydrothermal anchoring method and served as a catalyst to recover gold from Au(S2O3)23- solution for the first time. The microstructure and chemical component of MoS2@AA were systematically analyzed. In addition, batch experiments were carried out to explore the recovery behavior of Au(S2O3)23- (concentration: 10 to 200 ppm). Ascribing to the extraordinary optical property of MoS2@AA, Au(S2O3)23- could be directly reduced to Au0 by photogenerated electrons and then form a two-phase interface of gold/MoS2@AA. As a result, the recovery of Au(S2O3)23- can reach up to 98% on MoS2@AA, which was much higher than traditional methods. More importantly, the reduced Au0 could be desorbed from MoS2@AA through a supersonic method, achieving one-step Au0 recovery from Au(S2O3)23-. This novel strategy used in this research has great significance to the development of Au(S2O3)23- recovery in the future.
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Affiliation(s)
- Chang Liu
- Hubei Key Laboratory of Mineral Resources Processing and Environment, Wuhan University of Technology, Luoshi Road 122, Wuhan, Hubei 430070, China
- School of Resources and Environmental Engineering, Wuhan University of Technology, Luoshi Road 122, Wuhan, Hubei 430070, China
| | - Bingqiao Yang
- School of Resources and Safety Engineering, Wuhan Institute of Technology, Xiongchu Avenue 693, Wuhan, Hubei 430073, China
| | - Feifei Jia
- Hubei Key Laboratory of Mineral Resources Processing and Environment, Wuhan University of Technology, Luoshi Road 122, Wuhan, Hubei 430070, China
- School of Resources and Environmental Engineering, Wuhan University of Technology, Luoshi Road 122, Wuhan, Hubei 430070, China
| | - Shaoxian Song
- Hubei Key Laboratory of Mineral Resources Processing and Environment, Wuhan University of Technology, Luoshi Road 122, Wuhan, Hubei 430070, China
- School of Resources and Environmental Engineering, Wuhan University of Technology, Luoshi Road 122, Wuhan, Hubei 430070, China
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6
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Gourmand C, Bertagnolli C, Brandel J, Hubscher-Bruder V, Boos A. Bioinspired Mesoporous Silica for Cd(II) Removal from Aqueous Solutions. Ind Eng Chem Res 2022. [DOI: 10.1021/acs.iecr.2c00330] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Cléophée Gourmand
- Université de Strasbourg, CNRS, IPHC UMR 7178, Strasbourg F-67000, France
| | | | - Jérémy Brandel
- Université de Strasbourg, CNRS, IPHC UMR 7178, Strasbourg F-67000, France
| | | | - Anne Boos
- Université de Strasbourg, CNRS, IPHC UMR 7178, Strasbourg F-67000, France
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Han Q, Cao H, Sun Y, Wang G, Poon S, Wang M, Liu B, Wang Y, Wang Z, Mi B. Tuning phase compositions of MoS 2 nanomaterials for enhanced heavy metal removal: performance and mechanism. Phys Chem Chem Phys 2022; 24:13305-13316. [PMID: 35608012 DOI: 10.1039/d2cp00705c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Two-dimensional MoS2 nanosheets have shown great potential in heavy metal remediation due to their unique properties. MoS2 has two primary phases: 1T and 2H. Each has different physiochemical properties, but the impact of these differences on the overall material's heavy metal removal performance and associated mechanisms is rarely reported. In this study, we synthesized morphologically similar but phase-distinct MoS2 samples via hydrothermal synthesis, which comprised dominantly either a metallic 1T phase or a semiconducting 2H phase. 1T-MoS2 samples exhibited higher removal capacities for Ag+ and Pb2+ cations relative to 2H-MoS2. In particular, an eight-fold increase in the Pb2+ adsorption capacity was observed in the 1T-MoS2 samples (i.e. ∼632.9 mg g-1) compared to the 2H-MoS2 samples (∼81.6 mg g-1). The mechanisms driving the enhanced performance of 1T-MoS2 were investigated through detailed characterization of metal-laden MoS2 samples and DFT modelling. We found that 1T-MoS2 intrinsically had a larger interlayer spacing than 2H-MoS2 because water molecules were retained between the hydrophilic 1T nanosheets during hydrothermal synthesis. The widened interlayer spacing in 1T-MoS2 allowed the diffusion of heavy metal ions into the nanochannels, increasing the number of adsorption sites and total removal capacities. On the other hand, DFT modelling revealed the energy-favorable adsorption complex of Ag+ and Pb2+ for 1T-MoS2, in which each metal atom was bonded with three S atoms leading to much higher adsorption energies relative to 2H-MoS2 for Ag+ and Pb2+. This study unravels the underlying mechanisms of phase-dependent heavy metal remediation by MoS2 nanosheets, providing an important guide for the use of 2D nanomaterials in environmental applications which include heavy metal removal, contaminant sensing, and membrane separation.
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Affiliation(s)
- Qi Han
- Department of Environmental Science and Engineering, Southern University of Science and Technology, Shenzhen 518055, China.
| | - Hao Cao
- Department of Chemistry and Guangdong Provincial Key Laboratory of Catalytic Chemistry, Southern University of Science and Technology, Shenzhen 518055, China
| | - Yuchen Sun
- Department of Environmental Science and Engineering, Southern University of Science and Technology, Shenzhen 518055, China.
| | - Gang Wang
- Department of Physics, Southern University of Science and Technology, Shenzhen 518055, China
| | - Sidney Poon
- Department of Civil and Environmental Engineering, University of California, Berkeley, California 94720, USA
| | - Monong Wang
- Department of Civil and Environmental Engineering, University of California, Berkeley, California 94720, USA
| | - Bei Liu
- Department of Environmental Science and Engineering, Southern University of Science and Technology, Shenzhen 518055, China.
| | - Yanggang Wang
- Department of Chemistry and Guangdong Provincial Key Laboratory of Catalytic Chemistry, Southern University of Science and Technology, Shenzhen 518055, China
| | - Zhongying Wang
- Department of Environmental Science and Engineering, Southern University of Science and Technology, Shenzhen 518055, China.
| | - Baoxia Mi
- Department of Civil and Environmental Engineering, University of California, Berkeley, California 94720, USA
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8
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MoS2 composite hydrogel supported by two-dimensional montmorillonite nanosheets for Pb2+ removal from water. Chem Phys 2022. [DOI: 10.1016/j.chemphys.2022.111477] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
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9
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Wang Y, Xu H, Zhao X, Meng H, Lu Y, Li C. Alkynyl functionalized MoS 2 mesoporous materials with superb adsorptivity for heavy metal ions. JOURNAL OF HAZARDOUS MATERIALS 2022; 424:127579. [PMID: 34736210 DOI: 10.1016/j.jhazmat.2021.127579] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/06/2021] [Revised: 10/13/2021] [Accepted: 10/19/2021] [Indexed: 06/13/2023]
Abstract
Effective elimination of heavy metal ions from water is an arduous task for their toxic effects to aquatic ecosystem and human health. Herein, a novel alkynyl functionalized molybdenum disulfide (C-MoS2) is fabricated via mechanochemical method with well interlayered spacing, meso porosity, and high surface area (~211 m2g-1). Mineral MoS2 was first peeled mechanically and oxidized in situ to MoS2-xOx, and then reduced by ball milling with CaC2 to form the C-MoS2 composite. The as-obtained C-MoS2 shows extraordinary adsorptivity for heavy metal ions, viz. 1194 mg-Hg g-1 (Hg(NO3)2 solution, pH= 5, 303.15 K, equilibrium Hg(II) concentration Ce= 36.9 μg·g-1, ionic strength I= 17.2 mmolL-1), and 442.3 mg-Pbg-1 (Pb(NO3)2 solution, pH= 5, 303.15 K, equilibrium Pb(II) concentration Ce= 46.9μgg-1, I= 5.8 mmolL-1), respectively, along with excellent recyclability, representing one of the best sorbents till now. The adsorption isotherms of Hg(II) followed the Langmuir model and the adsorption kinetics followed the pseudo-second-order model. The adsorption is an endothermic and entropy driven spontaneous process. The excellent adsorption performance of C-MoS2 is attributed to its very high S-content, availability, and soft acid-base interaction with mercury and lead anions. The C-MoS2 is an advanced sorbent for Hg(II) and Pb(II) with excellent adsorption performance and recyclability.
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Affiliation(s)
- Yingying Wang
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029, PR China; College of Chemical Engineering, Beijing University of Chemical Technology, Beijing 100029, PR China
| | - Hui Xu
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029, PR China; College of Chemical Engineering, Beijing University of Chemical Technology, Beijing 100029, PR China
| | - Xiaomin Zhao
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029, PR China; College of Chemical Engineering, Beijing University of Chemical Technology, Beijing 100029, PR China
| | - Hong Meng
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029, PR China; College of Chemical Engineering, Beijing University of Chemical Technology, Beijing 100029, PR China
| | - Yingzhou Lu
- College of Chemical Engineering, Beijing University of Chemical Technology, Beijing 100029, PR China
| | - Chunxi Li
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029, PR China; College of Chemical Engineering, Beijing University of Chemical Technology, Beijing 100029, PR China; Beijing Key Laboratory of Energy Environmental Catalysis, Beijing University of Chemical Technology, Beijing 100029, PR China.
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10
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Liu C, Yang B, Chen J, Jia F, Song S. Synergetic degradation of Methylene Blue through photocatalysis and Fenton reaction on two-dimensional molybdenite-Fe. J Environ Sci (China) 2022; 111:11-23. [PMID: 34949341 DOI: 10.1016/j.jes.2021.03.001] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2020] [Revised: 02/28/2021] [Accepted: 03/02/2021] [Indexed: 05/28/2023]
Abstract
The greatest problem in conventional Fenton reaction is the slow production of ROS (reactive oxygen species) because of the inefficient Fe3+/Fe2+ conversion. Based on the extraordinary photo-response property of two-dimensional molybdenite (2DM), photogenerated electrons can be easy separated to accelerate the regeneration of Fe2+. In this work, Fe2+-anchored 2DM (2DM-Fe) was prepared and used as a heterogeneous Fenton catalyst to investigate the degradation efficiency to Methylene Blue (MB) in the presence of light. According to experimental results, 2DM-Fe exhibited extraordinary catalytic activity in MB elimination, which ascribed to the synergetic effect of photogenerated carriers and anchored Fe2+ to H2O2 activation. In addition, 2DM-Fe showed nearly 100% degradation efficiency to MB within 5 cycles with slight leaching amount of Mo and Fe ions, implying the strong stability and reusability in H2O2 system. Furthermore, the influences of H2O2 and 2DM-Fe dosages, pH values as well as the degradation efficiency to different dyes were also investigated. According to quenching experiments and EPR (electron paramagnetic resonance) test, the degradation mechanism of MB mainly ascribed to the oxidation of HO• and •O2-. This finding provides a novel strategy to design rational Fenton catalyst and has great significance to water remediation in the future.
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Affiliation(s)
- Chang Liu
- Hubei Key Laboratory of Mineral Resources Processing and Environment, Wuhan University of Technology, Wuhan 430070, China
| | - Bingqiao Yang
- Xingfa School of Mining Engineering, Wuhan Institute of Technology, Wuhan 430073, China
| | - Jianxin Chen
- Hubei Key Laboratory of Mineral Resources Processing and Environment, Wuhan University of Technology, Wuhan 430070, China
| | - Feifei Jia
- Hubei Key Laboratory of Mineral Resources Processing and Environment, Wuhan University of Technology, Wuhan 430070, China.
| | - Shaoxian Song
- Hubei Key Laboratory of Mineral Resources Processing and Environment, Wuhan University of Technology, Wuhan 430070, China; School of Resources and Environmental Engineering, Wuhan University of Technology, Wuhan 430070, China
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Zhang W, Li R, Li Q, Li J, Sun X, Shen J, Han W, Xiong P. Green rust-deposited MoS2 composites for the enhanced sequestration of EDTA-chelated Cu(II) from an aqueous solution. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2021.117300] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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12
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Fabrication of recoverable magnetic surface ion-imprinted polymer based on graphene oxide for fast and selective removal of lead ions from aqueous solution. Colloids Surf A Physicochem Eng Asp 2021. [DOI: 10.1016/j.colsurfa.2021.126949] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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13
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Gu Y, Li H, Ye M, Zhang X, Zhang H, Wang G, Zhang Y. A universal route to fabricate bacterial cellulose-based composite membranes for simultaneous removal of multiple pollutants. Chem Commun (Camb) 2021; 57:8592-8595. [PMID: 34357369 DOI: 10.1039/d1cc02397g] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A self-standing, robust bacterial cellulose (BC)-based multifunctional composite membrane embedded with desirable nano-adsorbents has been successfully fabricated via a facile versatile strategy. As expected, the developed BC-based composite membrane enables the simultaneous and efficient removal of multiple co-existing pollutants.
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Affiliation(s)
- Yue Gu
- Key Laboratory of Materials Physics, Centre for Environmental and Energy Nanomaterials, Anhui Key Laboratory of Nanomaterials and Nanotechnology, CAS Centre for Excellence in Nanoscience, HFIPS, Institute of Solid State Physics, Chinese Academy of Sciences, Hefei 230031, China.
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14
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Wang C, Yang G, Shi W, Matras-Postolek K, Yang P. Construction of 2D/2D MoS 2/g-C 3N 4 Heterostructures for Photoreduction of Cr (VI). LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2021; 37:6337-6346. [PMID: 33977717 DOI: 10.1021/acs.langmuir.1c00929] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
2D/2D MoS2/g-C3N4 (MCN) surface heterostructures were created by second thermal polymerization of bulk g-C3N4 and the reaction of thiourea and MoO3 at 670 °C. MoS2 networks grew vertically along the (002) facet on superior thin g-C3N4 nanosheets. The layered heterostructures drastically improved the Cr(VI) removal ability. In the dark case, 27% of Cr(VI) was removed within 45 min. The result indicates that the adsorption of Cr(VI) was a chemical adsorption process involving the sharing and transfer of electrons. The equilibrium data indicate that the adsorbent was covered with a monolayer adsorbate, which conformed to the Langmuir isotherm model (R2 = 0.9618). In addition, MCN nanocomposites could convert Cr(VI) into non-toxic Cr(III) by photoreduction under visible light irradiation. With an optimized composition, 100% of Cr(VI) was removed within 30 min, which was ∼10 times quicker compared with Cr(VI) removal under dark conditions. Because g-C3N4 nanosheets (sample CN670) with higher photocurrent density revealed the lowest photoreduction Cr(VI) ability, adsorption plays an important role in Cr(VI) removal. For MoS2/g-C3N4 nanocomposites used in Cr(VI) removal, adsorption and photoreduction were incorporated together to get excellent performance.
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Affiliation(s)
- Chuanjie Wang
- School of Material Science and Engineering, University of Jinan, Jinan 250022, PR China
| | - Guanglei Yang
- Winbond Construction Group Company Ltd., Qingzhou 262500, PR China
| | - Wenbin Shi
- School of Material Science and Engineering, University of Jinan, Jinan 250022, PR China
| | - Katarzyna Matras-Postolek
- Faculty of Chemical Engineering and Technology, Cracow University of Technology, Warszawska 24 St., 31-155 Krakow, Poland
| | - Ping Yang
- School of Material Science and Engineering, University of Jinan, Jinan 250022, PR China
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15
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Zeng M, Yang B, Yan H, Qu H, Hu Y. Efficient recovery of Ag(I) from aqueous solution using MoS2 nanosheets: Adsorption study and DFT calculation. Chem Phys Lett 2020. [DOI: 10.1016/j.cplett.2020.137865] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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16
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Zhao F, Peydayesh M, Ying Y, Mezzenga R, Ping J. Transition Metal Dichalcogenide-Silk Nanofibril Membrane for One-Step Water Purification and Precious Metal Recovery. ACS APPLIED MATERIALS & INTERFACES 2020; 12:24521-24530. [PMID: 32368892 DOI: 10.1021/acsami.0c07846] [Citation(s) in RCA: 36] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
With the rapid worldwide industrial development, large amounts of pollutants such as heavy metals are discharged into the water sources, causing a huge threat to living beings. To mitigate this issue, there is an urgent need for new water treatment strategies. Inspired by a natural shell nacre structure and a multidimensional hybrid concept, we demonstrate multilayered inorganic-organic hybrid membranes using metallic molybdenum disulfide (MoS2) as two-dimensional transition metal dichalcogenide nanosheets and one-dimensional silk nanofibrils for water purification. Because of its possessing negatively charged layers and interaction sites, the hybrid film could adsorb metal ions and dyes from water. The separation performance can be tuned by changing the component ratios of these two nanomaterials. During filtration, due to the reducing effect of the MoS2 nanosheets, precious metal ions are reduced to their nanoparticle form without any further thermal or chemical treatments. In addition to the one-step removal and recovery of metal ions, the hybrid membranes exhibit excellent potential for the determination and removal of different dyes from water. The results of this research can open up an effective and green avenue for water purification and recovery of metal ions dissolved in water.
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Affiliation(s)
- Fengnian Zhao
- School of Biosystems Engineering and Food Science, Zhejiang University, 866 Yuhangtang Road, Hangzhou 310058, P. R. China
| | - Mohammad Peydayesh
- Department of Health Sciences and Technology, ETH Zurich, Zurich 8092, Switzerland
| | - Yibin Ying
- School of Biosystems Engineering and Food Science, Zhejiang University, 866 Yuhangtang Road, Hangzhou 310058, P. R. China
- Zhejiang A&F University, Hangzhou 311300, P. R. China
| | - Raffaele Mezzenga
- Department of Health Sciences and Technology, ETH Zurich, Zurich 8092, Switzerland
- Department of Materials, ETH Zurich, Zurich 8093, Switzerland
| | - Jianfeng Ping
- School of Biosystems Engineering and Food Science, Zhejiang University, 866 Yuhangtang Road, Hangzhou 310058, P. R. China
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