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Electrochemical oxidation of aniline using Ti/RuO2-SnO2 and Ti/RuO2-IrO2 as anode.
Zhu, Xu; Hu, Weiwu; Feng, Chuanping; Chen, Nan; Chen, Hongyan; Kuang, Peijing; Deng, Yang; Ma, Linlin.
Afiliación
  • Zhu X; School of Water Resources and Environment, China University of Geosciences (Beijing), No.29 Xueyuan Road, Haidian District, Beijing, 100083, China.
  • Hu W; 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: 2007012
  • Feng C; School of Water Resources and Environment, China University of Geosciences (Beijing), No.29 Xueyuan Road, Haidian District, Beijing, 100083, China.
  • Chen N; School of Water Resources and Environment, China University of Geosciences (Beijing), No.29 Xueyuan Road, Haidian District, Beijing, 100083, China.
  • Chen H; College of Science, Beijing Forestry University, No.35 Tsinghua East Road, Haidian District, Beijing, 100083, PR China.
  • Kuang P; School of Water Resources and Environment, China University of Geosciences (Beijing), No.29 Xueyuan Road, Haidian District, Beijing, 100083, China.
  • Deng Y; School of Water Resources and Environment, China University of Geosciences (Beijing), No.29 Xueyuan Road, Haidian District, Beijing, 100083, China.
  • Ma L; School of Water Resources and Environment, China University of Geosciences (Beijing), No.29 Xueyuan Road, Haidian District, Beijing, 100083, China.
Chemosphere ; 269: 128734, 2021 Apr.
Article en En | MEDLINE | ID: mdl-33143899
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.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Titanio / Contaminantes Químicos del Agua Idioma: En Revista: Chemosphere Año: 2021 Tipo del documento: Article País de afiliación: China Pais de publicación: Reino Unido
Texto completo
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Titanio / Contaminantes Químicos del Agua Idioma: En Revista: Chemosphere Año: 2021 Tipo del documento: Article País de afiliación: China Pais de publicación: Reino Unido