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Author:

Fu, Bo (Fu, Bo.) | Yan, Zihao (Yan, Zihao.) | Sun, Zhirong (Sun, Zhirong.) (Scholars:孙治荣)

Indexed by:

EI Scopus SCIE

Abstract:

The preparation of stable and high-efficiency heterogeneous electro-Fenton cathodes for the treatment of pollutants is important for environmental remediation. Herein, a novel N-doped MOF-derived Fe/Co bimetallic catalyst was in-situ grown on graphite felt (GF) surface to yield a composite cathode Fe/CoNHDC-400@GF for use in electro-Fenton process. The introduction of cobalt accelerated electron transfer due to existing polyvalent metals. The synergistic effect between Co-0, Co-II, Co-III, Fe-II, and Fe. enabled the continuous generation of reactive oxygen species ((OH)-O-center dot and O-center dot(2)-). Under near-neutral conditions (pH=6.5), complete removal of 10 mg L-1 chloroquine phosphate (CQP) was achieved within 60 min. Additionally, efficient removal was also achievable over a wide pH range (pH=3-11). The mechanistic investigations indicated (OH)-O-center dot as a major active oxygen species for CQP degradation. A combination of the experimental results with density functional theory calculations (DFT) clarified the degradation pathway and intermediate products of CQP. Moreover, the toxicity of degradation products significantly reduced. Overall, valuable insights on preparing composite cathodes grown in-situ for efficient removal of refractory pollutants from wastewater during the heterogeneous electro-Fenton process were provided, useful for future consideration.

Keyword:

Heterogeneous electro-Fenton process In-situ catalysis Chloroquine phosphate Polyvalent metals synergistic effect

Author Community:

  • [ 1 ] [Fu, Bo]Beijing Univ Technol, Coll Environm Sci & Engn, Dept Environm Engn, Beijing 100124, Peoples R China
  • [ 2 ] [Yan, Zihao]Beijing Univ Technol, Coll Environm Sci & Engn, Dept Environm Engn, Beijing 100124, Peoples R China
  • [ 3 ] [Sun, Zhirong]Beijing Univ Technol, Coll Environm Sci & Engn, Dept Environm Engn, Beijing 100124, Peoples R China
  • [ 4 ] [Fu, Bo]Beijing Univ Technol, Natl Engn Lab Adv Municipal Wastewater Treatment &, Beijing 100124, Peoples R China
  • [ 5 ] [Yan, Zihao]Beijing Univ Technol, Natl Engn Lab Adv Municipal Wastewater Treatment &, Beijing 100124, Peoples R China
  • [ 6 ] [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, Coll Environm Sci & Engn, Dept Environm Engn, Beijing 100124, Peoples R China;;

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Source :

JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING

ISSN: 2213-2929

Year: 2024

Issue: 3

Volume: 12

7 . 7 0 0

JCR@2022

Cited Count:

WoS CC Cited Count:

SCOPUS Cited Count: 7

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 2

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