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作者:

Zhu, Kai (Zhu, Kai.) | Ren, Xiaoli (Ren, Xiaoli.) | Sun, Xiuping (Sun, Xiuping.) | Zhu, Lijing (Zhu, Lijing.) | Sun, Zhirong (Sun, Zhirong.) (学者:孙治荣)

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Scopus SCIE

摘要:

This study presents a comparative investigation of supporting electrolyte effect on the surface corrosion and anodic oxidation performance of graphite electrode. The effect of electrolyte on the electrochemical behavior is investigated in solution containing 0.05 mol L-1 sodium salt, using current-overpotential curves and Tafel lines. The surface morphology and composition of the graphite anodes before and after electrolysis are characterized by scanning electron microscopy, X-ray diffraction, and Raman spectra. In aqueous solution, graphite anode is positive polarized, functionalizes the surface, and releases soluble organics. The light-absorbing corrosion products of graphite anode are recorded by a UV-Vis spectrophotometer in the ultraviolet wavelength range. Batch experiments on atrazine oxidation show that NaCl is more efficient than Na2SO4 and NaNO3 to promote the combustion of organics due to the mediated oxidation of the electrogenerated active chlorine species. The oxidation process is confirmed to employ a non-radical mechanism in which the organics are degraded at the active sites of graphite anode.

关键词:

Electrolytes Graphite anodes Surface corrosion Anodic oxidation

作者机构:

  • [ 1 ] [Zhu, Kai]Beijing Univ Technol, Natl Engn Lab Adv Municipal Wastewater Treatment, Beijing 100124, Peoples R China
  • [ 2 ] [Ren, Xiaoli]Beijing Univ Technol, Natl Engn Lab Adv Municipal Wastewater Treatment, Beijing 100124, Peoples R China
  • [ 3 ] [Sun, Xiuping]Beijing Univ Technol, Natl Engn Lab Adv Municipal Wastewater Treatment, Beijing 100124, Peoples R China
  • [ 4 ] [Zhu, Lijing]Beijing Univ Technol, Natl Engn Lab Adv Municipal Wastewater Treatment, Beijing 100124, Peoples R China
  • [ 5 ] [Sun, Zhirong]Beijing Univ Technol, Natl Engn Lab Adv Municipal Wastewater Treatment, Beijing 100124, Peoples R China

通讯作者信息:

  • 孙治荣

    [Sun, Zhirong]Beijing Univ Technol, Natl Engn Lab Adv Municipal Wastewater Treatment, Beijing 100124, Peoples R China

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来源 :

ELECTROCATALYSIS

ISSN: 1868-2529

年份: 2019

期: 5

卷: 10

页码: 549-559

3 . 1 0 0

JCR@2022

ESI学科: CHEMISTRY;

ESI高被引阀值:166

JCR分区:3

被引次数:

WoS核心集被引频次: 12

SCOPUS被引频次: 12

ESI高被引论文在榜: 0 展开所有

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