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Electrochemical removal of amoxicillin using a Cu doped PbO2 electrode: Electrode characterization, operational parameters optimization and degradation mechanism.
Chemosphere. 2019 Oct; 233:762-770.C

Abstract

This work investigated the electrochemical degradation of amoxicillin (AMX) in aqueous solution with Cu-PbO2 electrode. The main influence factors on the degradation of AMX, such as Na2SO4 concentration, initial AMX concentration, current density and initial pH value, were analyzed in detail. Under the optimal conditions, the removal rates of AMX and chemical oxygen demand (COD) reached 99.4% and 46.3% after 150 min treatment. The results indicated that the electrochemical degradation of AMX fitted pseudo-first-order reaction kinetics. Compared with undoped PbO2 electrode, Cu-PbO2 electrode had a smaller crystal size, more proportion of hydroxyl oxygen species, greater AMX and chemical oxygen demand (COD) removal efficiency, higher average current efficiency (ACE) and lower electrical efficiency per log order (EE/O). Electrochemical oxidation using Cu-PbO2 electrodes was an effective way to eliminate amoxicillin in aqueous solution. Moreover, a possible degradation pathway including ring open and mineralization was proposed by intermediate products determined by GC-MS method. This paper could provide basic data and technique reference for the amoxicillin wastewater pollution control.

Authors+Show Affiliations

College of Environment, Zhejiang University of Technology, Hangzhou, 310032, China.College of Environment, Zhejiang University of Technology, Hangzhou, 310032, China.College of Environment, Zhejiang University of Technology, Hangzhou, 310032, China.College of Environment, Zhejiang University of Technology, Hangzhou, 310032, China.College of Environment, Zhejiang University of Technology, Hangzhou, 310032, China.College of Environment, Zhejiang University of Technology, Hangzhou, 310032, China. Electronic address: dqz@zjut.edu.cn.College of Environment, Zhejiang University of Technology, Hangzhou, 310032, China.

Pub Type(s)

Journal Article

Language

eng

PubMed ID

31200136

Citation

Bian, Xinze, et al. "Electrochemical Removal of Amoxicillin Using a Cu Doped PbO2 Electrode: Electrode Characterization, Operational Parameters Optimization and Degradation Mechanism." Chemosphere, vol. 233, 2019, pp. 762-770.
Bian X, Xia Y, Zhan T, et al. Electrochemical removal of amoxicillin using a Cu doped PbO2 electrode: Electrode characterization, operational parameters optimization and degradation mechanism. Chemosphere. 2019;233:762-770.
Bian, X., Xia, Y., Zhan, T., Wang, L., Zhou, W., Dai, Q., & Chen, J. (2019). Electrochemical removal of amoxicillin using a Cu doped PbO2 electrode: Electrode characterization, operational parameters optimization and degradation mechanism. Chemosphere, 233, 762-770. https://doi.org/10.1016/j.chemosphere.2019.05.226
Bian X, et al. Electrochemical Removal of Amoxicillin Using a Cu Doped PbO2 Electrode: Electrode Characterization, Operational Parameters Optimization and Degradation Mechanism. Chemosphere. 2019;233:762-770. PubMed PMID: 31200136.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Electrochemical removal of amoxicillin using a Cu doped PbO2 electrode: Electrode characterization, operational parameters optimization and degradation mechanism. AU - Bian,Xinze, AU - Xia,Yi, AU - Zhan,Tingting, AU - Wang,Lin, AU - Zhou,Wan, AU - Dai,Qizhou, AU - Chen,Jianmeng, Y1 - 2019/05/27/ PY - 2019/03/01/received PY - 2019/05/16/revised PY - 2019/05/25/accepted PY - 2019/6/15/pubmed PY - 2019/9/19/medline PY - 2019/6/15/entrez KW - Amoxicillin KW - Cu-doped PbO(2) electrode KW - Degradation mechanism KW - Electrochemical degradation SP - 762 EP - 770 JF - Chemosphere JO - Chemosphere VL - 233 N2 - This work investigated the electrochemical degradation of amoxicillin (AMX) in aqueous solution with Cu-PbO2 electrode. The main influence factors on the degradation of AMX, such as Na2SO4 concentration, initial AMX concentration, current density and initial pH value, were analyzed in detail. Under the optimal conditions, the removal rates of AMX and chemical oxygen demand (COD) reached 99.4% and 46.3% after 150 min treatment. The results indicated that the electrochemical degradation of AMX fitted pseudo-first-order reaction kinetics. Compared with undoped PbO2 electrode, Cu-PbO2 electrode had a smaller crystal size, more proportion of hydroxyl oxygen species, greater AMX and chemical oxygen demand (COD) removal efficiency, higher average current efficiency (ACE) and lower electrical efficiency per log order (EE/O). Electrochemical oxidation using Cu-PbO2 electrodes was an effective way to eliminate amoxicillin in aqueous solution. Moreover, a possible degradation pathway including ring open and mineralization was proposed by intermediate products determined by GC-MS method. This paper could provide basic data and technique reference for the amoxicillin wastewater pollution control. SN - 1879-1298 UR - https://www.unboundmedicine.com/medline/citation/31200136/Electrochemical_removal_of_amoxicillin_using_a_Cu_doped_PbO2_electrode:_Electrode_characterization_operational_parameters_optimization_and_degradation_mechanism_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0045-6535(19)31147-6 DB - PRIME DP - Unbound Medicine ER -