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作者:

Duan, Pingzhou (Duan, Pingzhou.) | Hu, Xiang (Hu, Xiang.) | Ji, Zongyuan (Ji, Zongyuan.) | Yang, Xiaoming (Yang, Xiaoming.) | Sun, Zhirong (Sun, Zhirong.) (学者:孙治荣)

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摘要:

In order to develop an efficient electrode to remove pharmaceutical and personal care products from wastewater, copper and antimony doped Ti/SnO2 electrode were prepared by thermal decomposition. Electrochemical characterization was undertaken on Ti/SnO2-Cu using cyclic voltammetry and linear sweep voltammetry, indicating an ultra-high 2.1 V of oxygen evolution potential, better stability, and superior corrosion resistance rather than traditional Ti/SnO2-Sb electrode. Competitive degradation experiments showed more efficient removal rate was achieved on Ti/SnO2-Cu electrode, which could remove more than 90% ceftazidime within 60 min. The microstructure and crystal orientation of the modified electrodes were investigated by scanning electron microscopy, which indicated that the crystal of the Ti/SnO2-Cu electrode grew in more porous and uniform condition, covered with closely arranged layers of the coating. X-ray photoelectron spectroscopy and X-ray diffractions suggested that Cu2O was successfully coated on the Ti/SnO2-Cu electrode surface. The operating parameters of electrochemical degradation process were also investigated, including current density, initial concentration, electrode distance, stirring rate and supporting electrolyte. Consequently, the intermediate products of electrochemical degradation were monitored by liquid chromatography-mass spectrometry and a major degradation pathway was proposed. (C) 2018 Elsevier Ltd. All rights reserved.

关键词:

Ceftazidime Electro-catalysis SnO2 electrode Cu doping Degradation pathway

作者机构:

  • [ 1 ] [Duan, Pingzhou]Beijing Univ Chem Technol, Coll Chem Engn, Beijing 100029, Peoples R China
  • [ 2 ] [Hu, Xiang]Beijing Univ Chem Technol, Coll Chem Engn, Beijing 100029, Peoples R China
  • [ 3 ] [Ji, Zongyuan]Beijing Univ Chem Technol, Coll Chem Engn, Beijing 100029, Peoples R China
  • [ 4 ] [Yang, Xiaoming]Beijing Univ Chem Technol, Coll Chem Engn, Beijing 100029, Peoples R China
  • [ 5 ] [Duan, Pingzhou]Res Ctr Environm Pollut Control & Resource Reuse, Beijing 100029, Peoples R China
  • [ 6 ] [Hu, Xiang]Res Ctr Environm Pollut Control & Resource Reuse, Beijing 100029, Peoples R China
  • [ 7 ] [Ji, Zongyuan]Res Ctr Environm Pollut Control & Resource Reuse, Beijing 100029, Peoples R China
  • [ 8 ] [Yang, Xiaoming]Res Ctr Environm Pollut Control & Resource Reuse, Beijing 100029, Peoples R China
  • [ 9 ] [Sun, Zhirong]Beijing Univ Technol, Coll Environm & Energy Engn, Beijing 100124, Peoples R China

通讯作者信息:

  • 孙治荣

    [Hu, Xiang]Beijing Univ Chem Technol, Coll Chem Engn, Beijing 100029, Peoples R China;;[Sun, Zhirong]Beijing Univ Technol, Coll Environm & Energy Engn, Beijing 100124, Peoples R China

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来源 :

CHEMOSPHERE

ISSN: 0045-6535

年份: 2018

卷: 212

页码: 594-603

8 . 8 0 0

JCR@2022

ESI学科: ENVIRONMENT/ECOLOGY;

ESI高被引阀值:203

JCR分区:1

被引次数:

WoS核心集被引频次: 49

SCOPUS被引频次: 46

ESI高被引论文在榜: 0 展开所有

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