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Jiawei Liu, Jun Shi, Huiping Deng. Fe-O-Bi efficient electron transfer channels and photo-Fenton synergy in S-scheme heterojunctions: insights into interfacial interactions and ofloxacin degradation. Green Energy&Environment. doi: 10.1016/j.gee.2024.09.008
Citation: Jiawei Liu, Jun Shi, Huiping Deng. Fe-O-Bi efficient electron transfer channels and photo-Fenton synergy in S-scheme heterojunctions: insights into interfacial interactions and ofloxacin degradation. Green Energy&Environment. doi: 10.1016/j.gee.2024.09.008
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Fe-O-Bi efficient electron transfer channels and photo-Fenton synergy in S-scheme heterojunctions: insights into interfacial interactions and ofloxacin degradation

doi: 10.1016/j.gee.2024.09.008

  • State Key Laboratory of Pollution Control and Resource Reuse, Key Laboratory of Yangtze River Water Environment Ministry of Education, College of Environmental Science and Engineering, Tongji University, Shanghai 200092, China

Funds:

This work was financially supported by the National Key Research and Development Program of China (2020YFD1100501) and Thanks zkec (www.zjkec.cc) for XRD

  • Received date 03 June 2024, Accepted date 26 September 2024, RevRecd date 14 July 2024, Available online 11 October 2024
    Abstract
  • Fenton method combined with light to accelerate the production of free radicals from H2O2 can achieve more efficient pollutant degradation. In this paper, a novel BiOI/FeWO4 S-scheme heterojunction photocatalyst was obtained by in situ synthesis, which can activate H2O2 and degrade the organic pollutant OFC (ofloxacin) under visible light. The S-scheme charge transfer mechanism was confirmed by XPS spectroscopy, in situ KPFM and theoretical calculation. The photogenerated electrons were transferred from FeWO4 to BiOI driven by the built-in electric field and band bending, which inhibited carrier recombination and facilitated the activation of H2O2.The BiFe-5/Vis/H2O2 system degraded OFC up to 96.4% in 60 min. This study provides new systematic insights into the activation of H2O2 by S-scheme heterojunctions, which is of great significance for the treatment of antibiotic wastewater.

     

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