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作者:

Shi, Xuelin (Shi, Xuelin.) | Qi, Haiqiang (Qi, Haiqiang.) | Liu, Zhibin (Liu, Zhibin.) | Yan, Zihao (Yan, Zihao.) | Yang, Jingjie (Yang, Jingjie.) | Sun, Zhirong (Sun, Zhirong.) (学者:孙治荣)

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Scopus SCIE

摘要:

Cu-based nanocatalysts have received much attention for their high efficiency and environmental friendliness in heterogeneous electro-Fenton (hetero-EF) technology. However, designing catalysts posses high stability and efficient pollutant degradation performance remains challenging. In this work, a novel binder-free copper foam (CF)-supported CuxO nanorod array electrode was prepared by solvothermal and calcination methods and used for the degradation of sulfamethoxazole (SMX). The hetero-EF system with CuxO NRs/CF-300 C as cathode achieved 100 % SMX degradation in 90 min. Experimental and theoretical calculations showed that the coexistence of Cu-0, Cu+, and Cu(2+ )in Cu-based catalysts promotes the generation of & sdot;O-2(-) and facilitates redox cycling of Cu species (Cu+/Cu2+), thus enhancing SMX degradation efficiency. In addition, CuxO NRs/CF-300 C expanded the pH range (3-11) and exhibited remarkable stability, making it an excellent synthetic electrode material with production potential. This discovery successfully overcame the low and unstable Cu+ activation capacity and the short lifetime of reactive oxygen species in conventional heterogeneous reactions. This work provides a practical approach for developing reliable Cu-based nanocatalysts and facilitating the degradation of organic contaminants.

关键词:

Active oxygen species Heterogeneous electro-Fenton Sulfamethoxazole Copper -based nanocatalysts Synergistic effect

作者机构:

  • [ 1 ] [Shi, Xuelin]Beijing Univ Technol, Dept Environm Engn, Pingleyuan 100, Beijing 100124, Peoples R China
  • [ 2 ] [Qi, Haiqiang]Beijing Univ Technol, Dept Environm Engn, Pingleyuan 100, Beijing 100124, Peoples R China
  • [ 3 ] [Liu, Zhibin]Beijing Univ Technol, Dept Environm Engn, Pingleyuan 100, Beijing 100124, Peoples R China
  • [ 4 ] [Yan, Zihao]Beijing Univ Technol, Dept Environm Engn, Pingleyuan 100, Beijing 100124, Peoples R China
  • [ 5 ] [Yang, Jingjie]Beijing Univ Technol, Dept Environm Engn, Pingleyuan 100, Beijing 100124, Peoples R China
  • [ 6 ] [Sun, Zhirong]Beijing Univ Technol, Dept Environm Engn, Pingleyuan 100, Beijing 100124, Peoples R China
  • [ 7 ] [Shi, Xuelin]Beijing Univ Technol, Natl Engn Lab Adv Municipal Wastewater Treatment, Reuse Technol & Water Environm Recovery Engn, Beijing 100124, Peoples R China
  • [ 8 ] [Qi, Haiqiang]Beijing Univ Technol, Natl Engn Lab Adv Municipal Wastewater Treatment, Reuse Technol & Water Environm Recovery Engn, Beijing 100124, Peoples R China
  • [ 9 ] [Liu, Zhibin]Beijing Univ Technol, Natl Engn Lab Adv Municipal Wastewater Treatment, Reuse Technol & Water Environm Recovery Engn, Beijing 100124, Peoples R China
  • [ 10 ] [Yan, Zihao]Beijing Univ Technol, Natl Engn Lab Adv Municipal Wastewater Treatment, Reuse Technol & Water Environm Recovery Engn, Beijing 100124, Peoples R China
  • [ 11 ] [Yang, Jingjie]Beijing Univ Technol, Natl Engn Lab Adv Municipal Wastewater Treatment, Reuse Technol & Water Environm Recovery Engn, Beijing 100124, Peoples R China
  • [ 12 ] [Sun, Zhirong]Beijing Univ Technol, Natl Engn Lab Adv Municipal Wastewater Treatment, Reuse Technol & Water Environm Recovery Engn, Beijing 100124, Peoples R China

通讯作者信息:

  • 孙治荣

    [Sun, Zhirong]Beijing Univ Technol, Dept Environm Engn, Pingleyuan 100, Beijing 100124, Peoples R China

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来源 :

CHEMICAL ENGINEERING JOURNAL

ISSN: 1385-8947

年份: 2024

卷: 483

1 5 . 1 0 0

JCR@2022

被引次数:

WoS核心集被引频次:

SCOPUS被引频次: 8

ESI高被引论文在榜: 0 展开所有

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