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Hydrophobic networked PbO2 electrode for electrochemical oxidation of paracetamol drug and degradation mechanism kinetics.
Chemosphere. 2018 Feb; 193:89-99.C

Abstract

A hydrophobic networked PbO2 electrode was deposited on mesh titanium substrate and utilized for the electrochemical elimination towards paracetamol drug. Three dimensional growth mechanism of PbO2 layer provided more loading capacity of active materials and network structure greatly reduced the mass transfer for the electrochemical degradation. The active electrochemical surface area based on voltammetric charge quantity of networked PbO2 electrode is about 2.1 times for traditional PbO2 electrode while lower charge transfer resistance (6.78 Ω cm2) could be achieved on networked PbO2 electrode. The electrochemical incineration kinetics of paracetamol drug followed a pseudo first-order behavior and the corresponding rate constant were 0.354, 0.658 and 0.880 h-1 for traditional, networked PbO2 and boron doped diamond electrode. Higher electrochemical elimination kinetics could be achieved on networked PbO2 electrode and the performance can be equal to boron doped diamond electrode in result. Based on the quantification of reactive oxidants (hydroxyl radicals), the utilization rate of hydroxyl radicals could reach as high as 90% on networked PbO2 electrode. The enhancement of excellent electrochemical oxidation capacity towards paracetamol drug was related to the properties of higher loading capacity, enhanced mass transfer and hydrophobic surface. The possible degradation mechanism and pathway of paracetamol on networked PbO2 electrode were proposed in details accordingly based on the intermediate products.

Authors+Show Affiliations

College of Chemistry, Jilin University, Changchun 130012, China; Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology, Kunming 650093, China.Faculty of Chemistry and Chemical Engineering, Yunnan Normal University, Kunming 650500, China.College of Chemistry, Jilin University, Changchun 130012, China. Electronic address: huangwm@jlu.edu.cn.College of Chemistry, Jilin University, Changchun 130012, China.College of Chemistry, Jilin University, Changchun 130012, China.State Key Laboratory of Superhard Materials, Jilin University, Changchun 130012, China.College of Chemistry, Jilin University, Changchun 130012, China; Guangdong Guanghua Sci-Tech Co., Ltd., Shantou 515061, China. Electronic address: lhb910@jlu.edu.cn.

Pub Type(s)

Journal Article

Language

eng

PubMed ID

29127839

Citation

He, Yapeng, et al. "Hydrophobic Networked PbO2 Electrode for Electrochemical Oxidation of Paracetamol Drug and Degradation Mechanism Kinetics." Chemosphere, vol. 193, 2018, pp. 89-99.
He Y, Wang X, Huang W, et al. Hydrophobic networked PbO2 electrode for electrochemical oxidation of paracetamol drug and degradation mechanism kinetics. Chemosphere. 2018;193:89-99.
He, Y., Wang, X., Huang, W., Chen, R., Zhang, W., Li, H., & Lin, H. (2018). Hydrophobic networked PbO2 electrode for electrochemical oxidation of paracetamol drug and degradation mechanism kinetics. Chemosphere, 193, 89-99. https://doi.org/10.1016/j.chemosphere.2017.10.144
He Y, et al. Hydrophobic Networked PbO2 Electrode for Electrochemical Oxidation of Paracetamol Drug and Degradation Mechanism Kinetics. Chemosphere. 2018;193:89-99. PubMed PMID: 29127839.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Hydrophobic networked PbO2 electrode for electrochemical oxidation of paracetamol drug and degradation mechanism kinetics. AU - He,Yapeng, AU - Wang,Xue, AU - Huang,Weimin, AU - Chen,Rongling, AU - Zhang,Wenli, AU - Li,Hongdong, AU - Lin,Haibo, Y1 - 2017/10/27/ PY - 2017/07/26/received PY - 2017/10/24/revised PY - 2017/10/25/accepted PY - 2017/11/12/pubmed PY - 2018/3/22/medline PY - 2017/11/12/entrez KW - Electrochemical degradation KW - Mechanism kinetics KW - Networked PbO(2) electrode KW - Paracetamol drug SP - 89 EP - 99 JF - Chemosphere JO - Chemosphere VL - 193 N2 - A hydrophobic networked PbO2 electrode was deposited on mesh titanium substrate and utilized for the electrochemical elimination towards paracetamol drug. Three dimensional growth mechanism of PbO2 layer provided more loading capacity of active materials and network structure greatly reduced the mass transfer for the electrochemical degradation. The active electrochemical surface area based on voltammetric charge quantity of networked PbO2 electrode is about 2.1 times for traditional PbO2 electrode while lower charge transfer resistance (6.78 Ω cm2) could be achieved on networked PbO2 electrode. The electrochemical incineration kinetics of paracetamol drug followed a pseudo first-order behavior and the corresponding rate constant were 0.354, 0.658 and 0.880 h-1 for traditional, networked PbO2 and boron doped diamond electrode. Higher electrochemical elimination kinetics could be achieved on networked PbO2 electrode and the performance can be equal to boron doped diamond electrode in result. Based on the quantification of reactive oxidants (hydroxyl radicals), the utilization rate of hydroxyl radicals could reach as high as 90% on networked PbO2 electrode. The enhancement of excellent electrochemical oxidation capacity towards paracetamol drug was related to the properties of higher loading capacity, enhanced mass transfer and hydrophobic surface. The possible degradation mechanism and pathway of paracetamol on networked PbO2 electrode were proposed in details accordingly based on the intermediate products. SN - 1879-1298 UR - https://www.unboundmedicine.com/medline/citation/29127839/Hydrophobic_networked_PbO2_electrode_for_electrochemical_oxidation_of_paracetamol_drug_and_degradation_mechanism_kinetics_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0045-6535(17)31729-0 DB - PRIME DP - Unbound Medicine ER -