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Degradation of aniline by electrochemical activation of peroxydisulfate at MWCNT cathode: The proofed concept of nonradical oxidation process.
Chemosphere. 2018 Sep; 206:432-438.C

Abstract

Enhanced elimination of aniline in aqueous solution was achieved by coupling electrosorption of aniline and electrochemical activation of peroxydisulfate (PDS) at multi-walled carbon nanotube (MWCNT) cathode, in which a synergistic effect occurred. It was found that PDS could be effectively activated under a small voltage at MWCNT cathode owing to the specific pore structures of MWCNTs. A nonradical oxidation pathway instead of radical-based oxidation was proposed from the cathodic activation of PDS, wherein PDS molecules with a modified electronic structure was suggested to be the principal reactive species. Meanwhile, the influences of various operation parameters such as electrode potential, PDS concentration, presence of chloride ions on the elimination efficiency, and the stability of MWCNT electrode were also attempted. Therefore, the electrochemical activation of PDS by MWCNT cathode is a promising energy-saving method for the treatment of organic pollutants in wastewater.

Authors+Show Affiliations

Guangzhou Key Laboratory of Environmental Catalysis and Pollution Control, Institute of Environmental Health and Pollution Control, School of Environmental Science and Engineering, Guangdong University of Technology, Guangzhou 51006, China.Guangzhou Key Laboratory of Environmental Catalysis and Pollution Control, Institute of Environmental Health and Pollution Control, School of Environmental Science and Engineering, Guangdong University of Technology, Guangzhou 51006, China. Electronic address: zhimin.ao@gdut.edu.cn.Department of Chemical Engineering, Curtin University, GPO Box U1987, Perth, WA 6845, Australia.College of Chemistry and Chemical Engineering, Jiangsu Key Laboratory of Environmental Engineering and Monitoring, Yangzhou University, 180 Si-Wang Ting Road, Yangzhou, 225002, China.Department of Chemical Engineering, Curtin University, GPO Box U1987, Perth, WA 6845, Australia. Electronic address: shaobin.wang@curtin.edu.au.Guangzhou Key Laboratory of Environmental Catalysis and Pollution Control, Institute of Environmental Health and Pollution Control, School of Environmental Science and Engineering, Guangdong University of Technology, Guangzhou 51006, China.

Pub Type(s)

Journal Article

Language

eng

PubMed ID

29758500

Citation

Nie, Chunyang, et al. "Degradation of Aniline By Electrochemical Activation of Peroxydisulfate at MWCNT Cathode: the Proofed Concept of Nonradical Oxidation Process." Chemosphere, vol. 206, 2018, pp. 432-438.
Nie C, Ao Z, Duan X, et al. Degradation of aniline by electrochemical activation of peroxydisulfate at MWCNT cathode: The proofed concept of nonradical oxidation process. Chemosphere. 2018;206:432-438.
Nie, C., Ao, Z., Duan, X., Wang, C., Wang, S., & An, T. (2018). Degradation of aniline by electrochemical activation of peroxydisulfate at MWCNT cathode: The proofed concept of nonradical oxidation process. Chemosphere, 206, 432-438. https://doi.org/10.1016/j.chemosphere.2018.04.173
Nie C, et al. Degradation of Aniline By Electrochemical Activation of Peroxydisulfate at MWCNT Cathode: the Proofed Concept of Nonradical Oxidation Process. Chemosphere. 2018;206:432-438. PubMed PMID: 29758500.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Degradation of aniline by electrochemical activation of peroxydisulfate at MWCNT cathode: The proofed concept of nonradical oxidation process. AU - Nie,Chunyang, AU - Ao,Zhimin, AU - Duan,Xiaoguang, AU - Wang,Chengying, AU - Wang,Shaobin, AU - An,Taicheng, Y1 - 2018/05/07/ PY - 2017/12/20/received PY - 2018/04/27/revised PY - 2018/04/28/accepted PY - 2018/5/15/pubmed PY - 2018/8/29/medline PY - 2018/5/15/entrez KW - Aniline elimination KW - Electrochemical activation KW - Multiwalled carbon nanotubes cathode KW - Nonradical oxidation KW - Peroxydisulfate SP - 432 EP - 438 JF - Chemosphere JO - Chemosphere VL - 206 N2 - Enhanced elimination of aniline in aqueous solution was achieved by coupling electrosorption of aniline and electrochemical activation of peroxydisulfate (PDS) at multi-walled carbon nanotube (MWCNT) cathode, in which a synergistic effect occurred. It was found that PDS could be effectively activated under a small voltage at MWCNT cathode owing to the specific pore structures of MWCNTs. A nonradical oxidation pathway instead of radical-based oxidation was proposed from the cathodic activation of PDS, wherein PDS molecules with a modified electronic structure was suggested to be the principal reactive species. Meanwhile, the influences of various operation parameters such as electrode potential, PDS concentration, presence of chloride ions on the elimination efficiency, and the stability of MWCNT electrode were also attempted. Therefore, the electrochemical activation of PDS by MWCNT cathode is a promising energy-saving method for the treatment of organic pollutants in wastewater. SN - 1879-1298 UR - https://www.unboundmedicine.com/medline/citation/29758500/Degradation_of_aniline_by_electrochemical_activation_of_peroxydisulfate_at_MWCNT_cathode:_The_proofed_concept_of_nonradical_oxidation_process_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0045-6535(18)30832-4 DB - PRIME DP - Unbound Medicine ER -