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Zhang W, Ji W, Yan W, Wang Z, Ling L, Hao X, Guan G. Enhanced electroactivity of BiOCl/PPy hybrid film with anamnestic lattice site for synergistically efficient selective uptake/release of chloride ions. Electrochim Acta 2022. [DOI: 10.1016/j.electacta.2022.140508] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Cheng Y, Wang J, Luo J, An X, Wang P, Ma X, Du X, Hao X. BiOI with Inherent Photo/Electric Biactivity Recovery I – by Novel Photoassisted Electrochemically Switched Ion Exchange Technology. Ind Eng Chem Res 2022. [DOI: 10.1021/acs.iecr.2c00766] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Yijia Cheng
- College of Environmental Science and Engineering, Taiyuan University of Technology, Taiyuan 030024, P. R. China
| | - Jie Wang
- Department of Chemical Engineering, Taiyuan University of Technology, Taiyuan 030024, P. R. China
| | - Jinhua Luo
- Department of Chemical Engineering, Taiyuan University of Technology, Taiyuan 030024, P. R. China
| | - Xiaowei An
- College of Environmental Science and Engineering, Taiyuan University of Technology, Taiyuan 030024, P. R. China
| | - Peifen Wang
- College of Environmental Science and Engineering, Taiyuan University of Technology, Taiyuan 030024, P. R. China
| | - Xuli Ma
- College of Environmental Science and Engineering, Taiyuan University of Technology, Taiyuan 030024, P. R. China
| | - Xiao Du
- Department of Chemical Engineering, Taiyuan University of Technology, Taiyuan 030024, P. R. China
| | - Xiaogang Hao
- Department of Chemical Engineering, Taiyuan University of Technology, Taiyuan 030024, P. R. China
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Zhang X, Wang J, Zhang Z, Du X, Gao F, Hao X, Abudula A, Guan G, Liu Z, Li J. Modelling of pseudocapacitive ion adsorption of electrochemically switched ion exchange based on electroactive site concentration. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2022.120451] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Niu J, Yan W, Song X, Ji W, Wang Z, Hao X, Guan G. An electrically switched ion exchange system with self-electrical-energy recuperation for efficient and selective LiCl separation from brine lakes. Sep Purif Technol 2021. [DOI: 10.1016/j.seppur.2021.118995] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Lin D, Zhang H, An X, Chang L, Alameen A, Ding S, Du X, Hao X. Theoretical calculation assisted materials screening of BiOX (X = F, Cl, Br, I) for electrochemical absorption of cesium ions. Phys Chem Chem Phys 2021; 23:8500-8507. [PMID: 33876013 DOI: 10.1039/d0cp06195f] [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
The electrochemical switching ion exchange (ESIX) technique has been widely used for the separation and recovery of radioactive cesium ions (Cs+) from wastewater. In this study, a series of BiOX (X = F, Cl, Br, I) materials were first evaluated for their absorption properties to Cs+ through density functional theory (DFT) calculations. The calculations predict that BiOBr has the best absorption performance among the four materials, BiOF, BiOCl, BiOBr, and BiOI, due to its high absorption energy and low ion migration energy barrier to Cs+. Simultaneously, the selectivity calculations revealed that BiOBr also showed the best selectivity for Cs+ compared with Li+ and Na+. Subsequently, four materials were prepared using the hydrothermal synthesis method and their electrochemical absorption performance was tested. The results showed that BiOBr has the highest electroactivity, and its absorption capacity was up to 16 mg Cs+/g BiOBr in a solution mixture of 50 ppm Li+, Na+, and Cs+. Based on our theoretical calculations and experiments, our findings provide prospective insights for predicting the electrochemical absorption performance of materials using first-principles calculations.
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Affiliation(s)
- Dongcheng Lin
- Department of Chemical Engineering, Taiyuan University of Technology, Taiyuan 030024, P. R. China.
| | - Huixin Zhang
- Department of Chemical Engineering, Taiyuan University of Technology, Taiyuan 030024, P. R. China.
| | - Xiaowei An
- Graduate School of Science and Technology, Hirosaki University, 1-Bunkyocho, Hirosaki 036-8560, Japan
| | - Lutong Chang
- Department of Chemical Engineering, Taiyuan University of Technology, Taiyuan 030024, P. R. China.
| | - Ayman Alameen
- Department of Chemical Engineering, Taiyuan University of Technology, Taiyuan 030024, P. R. China.
| | - Shengqi Ding
- Department of Chemical Engineering, Taiyuan University of Technology, Taiyuan 030024, P. R. China.
| | - Xiao Du
- Department of Chemical Engineering, Taiyuan University of Technology, Taiyuan 030024, P. R. China.
| | - Xiaogang Hao
- Department of Chemical Engineering, Taiyuan University of Technology, Taiyuan 030024, P. R. China.
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Zhang H, Alameen A, An X, Shen Q, Chang L, Ding S, Du X, Ma X, Hao X, Peng C. Theoretical and experimental investigations of BiOCl for electrochemical adsorption of cesium ions. Phys Chem Chem Phys 2019; 21:20901-20908. [PMID: 31517343 DOI: 10.1039/c9cp03684a] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
BiOCl was found to have excellent electrochemical adsorption properties for cesium ions (Cs+) in electrochemically switched ion exchange (ESIX). In this work, BiOCl nanosheets were synthesized by a hydrothermal method and used for electrochemical adsorption of Cs+. The experimental results showed that BiOCl exhibited higher electrochemical adsorption selectivity for Cs+ than Li+ and Na+. Quantum chemical calculations based on density functional theory (DFT) were first performed to compare the adsorption and migration mechanisms of three ions Li+, Na+, and Cs+ in BiOCl crystals. The calculation results revealed that the excellent electrochemical adsorption performance of BiOCl for Cs+ is due to the interaction of embedded Cs with Cl and Bi in BiOCl crystals. This makes it have a higher adsorption energy and a lower ion migration energy barrier due to the balance of interaction forces. In this work experimental and theoretical calculations were used to systematically analyze the adsorption and migration of three ions in BiOCl, which has important guiding significance for the design of highly-efficient electroactive materials for electrochemical adsorption of Cs+.
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Affiliation(s)
- Huixin Zhang
- Department of Chemical Engineering, Taiyuan University of Technology, Taiyuan 030024, P. R. China
| | - Ayman Alameen
- Department of Chemical Engineering, Taiyuan University of Technology, Taiyuan 030024, P. R. China
| | - Xiaowei An
- Energy Conversion Engineering Laboratory, Institute of Regional Innovation (IRI), Hirosaki University, 2-1-3, Matsubara, Aomori 030-0813, Japan
| | - Qianyao Shen
- Department of Chemical Engineering, Taiyuan University of Technology, Taiyuan 030024, P. R. China
| | - Lutong Chang
- Department of Chemical Engineering, Taiyuan University of Technology, Taiyuan 030024, P. R. China
| | - Shengqi Ding
- Department of Chemical Engineering, Taiyuan University of Technology, Taiyuan 030024, P. R. China
| | - Xiao Du
- Department of Chemical Engineering, Taiyuan University of Technology, Taiyuan 030024, P. R. China
| | - Xuli Ma
- College of Environmental Science and Engineering, Taiyuan University of Technology, Taiyuan 030024, P. R. China
| | - Xiaogang Hao
- Department of Chemical Engineering, Taiyuan University of Technology, Taiyuan 030024, P. R. China
| | - Changjun Peng
- Laboratory of Chemical Engineering and Department of Chemistry, East China University of Science and Technology, Shanghai, 200237, P. R. China
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