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Electrochemical oxidation of aniline using Ti/RuO2-SnO2 and Ti/RuO2-IrO2 as anode.
Chemosphere. 2021 Apr; 269:128734.C

Abstract

Electrocatalytic properties of anode and the electrolyte composition are important parameters influence the degradation efficiency for aniline wastewater. Ti/RuO2-SnO2 and Ti/RuO2-IrO2 have been fabricated using thermal decomposition method and experiments in electrolyte containing 0.05 M Na2SO4, 0.05 M NaCl and 0.05 M Na2SO4+0.005 M FeSO4 at different current density were conducted to study the influence on aniline degradation. Linear sweep voltammetry (LSV) showed that Ti/RuO2-SnO2 had higher oxygen evolution potential and degrade aniline through electrochemical transformation and electrochemical combustion while Ti/RuO2-IrO2 degrade aniline mainly through electrochemical transformation. The study showed that Ti/RuO2-SnO2 had higher electrocatalytic activity towards the degradation of aniline than Ti/RuO2-IrO2 anode in 0.05 M Na2SO4 and in 0.05 M NaCl electrolyte. The maximum TOC removal efficiency for Ti/RuO2-SnO2 was 64.2% at 40 mA cm-2 in Na2SO4 electrolyte while the average MCE was 1.6% and the average ECTOC was 1.51 kWh (g TOC)-1. On the contrary, the maximum TOC removal efficiency for Ti/RuO2-IrO2 was 63.1% at 40 mA cm-2 in NaCl electrolyte while the average MCE was 1.6% and the average ECTOC was 1.95 kWh (g TOC)-1. The presence of Fe2+ in Na2SO4 electrolyte would decrease the TOC removal efficiency except at low current density (20 mA cm-2) for Ti/RuO2-SnO2. These results indicated that Ti/RuO2-SnO2 and Ti/RuO2-IrO2 anode were suitable in Na2SO4 and NaCl electrolyte, respectively, while the presence of Fe2+ would inhibit aniline degradation.

Authors+Show Affiliations

School of Water Resources and Environment, China University of Geosciences (Beijing), No.29 Xueyuan Road, Haidian District, Beijing, 100083, China.School of Water Resources and Environment, China University of Geosciences (Beijing), No.29 Xueyuan Road, Haidian District, Beijing, 100083, China; The Journal Center, China University of Geosciences (Beijing), No.29 Xueyuan Road, Haidian District, Beijing, 100083, China. Electronic address: 2007012116@cugb.edu.cn.School of Water Resources and Environment, China University of Geosciences (Beijing), No.29 Xueyuan Road, Haidian District, Beijing, 100083, China.School of Water Resources and Environment, China University of Geosciences (Beijing), No.29 Xueyuan Road, Haidian District, Beijing, 100083, China.College of Science, Beijing Forestry University, No.35 Tsinghua East Road, Haidian District, Beijing, 100083, PR China.School of Water Resources and Environment, China University of Geosciences (Beijing), No.29 Xueyuan Road, Haidian District, Beijing, 100083, China.School of Water Resources and Environment, China University of Geosciences (Beijing), No.29 Xueyuan Road, Haidian District, Beijing, 100083, China.School of Water Resources and Environment, China University of Geosciences (Beijing), No.29 Xueyuan Road, Haidian District, Beijing, 100083, China.

Pub Type(s)

Journal Article

Language

eng

PubMed ID

33143899

Citation

Zhu, Xu, et al. "Electrochemical Oxidation of Aniline Using Ti/RuO2-SnO2 and Ti/RuO2-IrO2 as Anode." Chemosphere, vol. 269, 2021, p. 128734.
Zhu X, Hu W, Feng C, et al. Electrochemical oxidation of aniline using Ti/RuO2-SnO2 and Ti/RuO2-IrO2 as anode. Chemosphere. 2021;269:128734.
Zhu, X., Hu, W., Feng, C., Chen, N., Chen, H., Kuang, P., Deng, Y., & Ma, L. (2021). Electrochemical oxidation of aniline using Ti/RuO2-SnO2 and Ti/RuO2-IrO2 as anode. Chemosphere, 269, 128734. https://doi.org/10.1016/j.chemosphere.2020.128734
Zhu X, et al. Electrochemical Oxidation of Aniline Using Ti/RuO2-SnO2 and Ti/RuO2-IrO2 as Anode. Chemosphere. 2021;269:128734. PubMed PMID: 33143899.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Electrochemical oxidation of aniline using Ti/RuO2-SnO2 and Ti/RuO2-IrO2 as anode. AU - Zhu,Xu, AU - Hu,Weiwu, AU - Feng,Chuanping, AU - Chen,Nan, AU - Chen,Hongyan, AU - Kuang,Peijing, AU - Deng,Yang, AU - Ma,Linlin, Y1 - 2020/10/25/ PY - 2020/07/06/received PY - 2020/10/19/revised PY - 2020/10/22/accepted PY - 2020/11/5/pubmed PY - 2021/2/25/medline PY - 2020/11/4/entrez KW - Aniline KW - Chloride ions KW - Electrochemical oxidation KW - Ferrous ion KW - Ti/RuO(2)-IrO(2) KW - Ti/RuO(2)-SnO(2) SP - 128734 EP - 128734 JF - Chemosphere JO - Chemosphere VL - 269 N2 - Electrocatalytic properties of anode and the electrolyte composition are important parameters influence the degradation efficiency for aniline wastewater. Ti/RuO2-SnO2 and Ti/RuO2-IrO2 have been fabricated using thermal decomposition method and experiments in electrolyte containing 0.05 M Na2SO4, 0.05 M NaCl and 0.05 M Na2SO4+0.005 M FeSO4 at different current density were conducted to study the influence on aniline degradation. Linear sweep voltammetry (LSV) showed that Ti/RuO2-SnO2 had higher oxygen evolution potential and degrade aniline through electrochemical transformation and electrochemical combustion while Ti/RuO2-IrO2 degrade aniline mainly through electrochemical transformation. The study showed that Ti/RuO2-SnO2 had higher electrocatalytic activity towards the degradation of aniline than Ti/RuO2-IrO2 anode in 0.05 M Na2SO4 and in 0.05 M NaCl electrolyte. The maximum TOC removal efficiency for Ti/RuO2-SnO2 was 64.2% at 40 mA cm-2 in Na2SO4 electrolyte while the average MCE was 1.6% and the average ECTOC was 1.51 kWh (g TOC)-1. On the contrary, the maximum TOC removal efficiency for Ti/RuO2-IrO2 was 63.1% at 40 mA cm-2 in NaCl electrolyte while the average MCE was 1.6% and the average ECTOC was 1.95 kWh (g TOC)-1. The presence of Fe2+ in Na2SO4 electrolyte would decrease the TOC removal efficiency except at low current density (20 mA cm-2) for Ti/RuO2-SnO2. These results indicated that Ti/RuO2-SnO2 and Ti/RuO2-IrO2 anode were suitable in Na2SO4 and NaCl electrolyte, respectively, while the presence of Fe2+ would inhibit aniline degradation. SN - 1879-1298 UR - https://www.unboundmedicine.com/medline/citation/33143899/Electrochemical_oxidation_of_aniline_using_Ti/RuO2_SnO2_and_Ti/RuO2_IrO2_as_anode_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0045-6535(20)32932-5 DB - PRIME DP - Unbound Medicine ER -