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Author:

Shi, Xuelin (Shi, Xuelin.) | Yan, Zihao (Yan, Zihao.) | Zhu, Tong (Zhu, Tong.) | Sun, Zhirong (Sun, Zhirong.) (Scholars:孙治荣)

Indexed by:

EI Scopus SCIE

Abstract:

Herein, we fabricated a novel NiO@CuxO nanorods (NRs) composite electrode grown in-situ on copper foam (CF), designated as NiO@CuxO NRs/CF. This electrode demonstrates excellent performance in a heterogeneous electro-Fenton-like system. It efficiently activates O2 to generate 1O2 in-situ without the addition of oxidant precursors and effectively degrades chloroquine phosphate (CQ). The combination of NiO and CuxO nanoarrays created multiple synergistic sites for molecular oxygen adsorption and activation. The addition of NiO induced the formation of low-valence Cu species and effectively optimized oxygen reduction reaction (ORR) kinetics. This enhancement led to an increased generation of key intermediates (center dot O2- and center dot OH), which further promoted the efficient production of 1O2 through the chain reaction mediated by center dot O2- and center dot OH. NiO@CuxO NRs/CF achieved a 3.9-fold increase in 1O2 production compared to the CF electrode. NiO@CuxO NRs/CF electrodes exhibited exceptional performance in degrading CQ across a wide pH range (3-11). Meanwhile, it also displayed remarkable stability and anti-interference capability, highlighting their promising potential for practical applications. The study provides an innovative strategy for the in-situ production of 1O2 through molecular oxygen activation with a bimetallic composite catalyst to efficiently degrade organic pollutants.

Keyword:

Molecular oxygen activation Singlet oxygen Chloroquine phosphate Heterogeneous electro-Fenton-like Bimetallic composite catalyst

Author Community:

  • [ 1 ] [Shi, Xuelin]Beijing Univ Technol, Dept Environm Engn, Beijing 100124, Peoples R China
  • [ 2 ] [Yan, Zihao]Beijing Univ Technol, Dept Environm Engn, Beijing 100124, Peoples R China
  • [ 3 ] [Zhu, Tong]Beijing Univ Technol, Dept Environm Engn, Beijing 100124, Peoples R China
  • [ 4 ] [Sun, Zhirong]Beijing Univ Technol, Dept Environm Engn, Beijing 100124, Peoples R China
  • [ 5 ] [Shi, Xuelin]Beijing Univ Technol, Natl Engn Lab Adv Municipal Wastewater Treatment &, Beijing 100124, Peoples R China
  • [ 6 ] [Yan, Zihao]Beijing Univ Technol, Natl Engn Lab Adv Municipal Wastewater Treatment &, Beijing 100124, Peoples R China
  • [ 7 ] [Zhu, Tong]Beijing Univ Technol, Natl Engn Lab Adv Municipal Wastewater Treatment &, Beijing 100124, Peoples R China
  • [ 8 ] [Sun, Zhirong]Beijing Univ Technol, Natl Engn Lab Adv Municipal Wastewater Treatment &, Beijing 100124, Peoples R China

Reprint Author's Address:

  • [Sun, Zhirong]Beijing Univ Technol, Dept Environm Engn, Beijing 100124, Peoples R China;;

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Source :

CHEMICAL ENGINEERING JOURNAL

ISSN: 1385-8947

Year: 2024

Volume: 497

1 5 . 1 0 0

JCR@2022

Cited Count:

WoS CC Cited Count: 2

SCOPUS Cited Count: 2

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 8

Affiliated Colleges:

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