Volume 18 Issue 3
Sep.  2025
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Article Navigation >  Water Science and Engineering  > 2025  >  18(3): 288-300
Jian Fan, Jia-long Li, Bing-qian Deng, Jie-xin Wang, Wen-bin An, Yu-mei Li, Peng Sun. 2025: Comparative experimental study of bisphenol A degradation via sulfate radical and electron transfer mechanisms in persulfate-activated advanced oxidation processes. Water Science and Engineering, 18(3): 288-300. doi: 10.1016/j.wse.2025.07.003
Citation: Jian Fan, Jia-long Li, Bing-qian Deng, Jie-xin Wang, Wen-bin An, Yu-mei Li, Peng Sun. 2025: Comparative experimental study of bisphenol A degradation via sulfate radical and electron transfer mechanisms in persulfate-activated advanced oxidation processes. Water Science and Engineering, 18(3): 288-300. doi: 10.1016/j.wse.2025.07.003
shu

Comparative experimental study of bisphenol A degradation via sulfate radical and electron transfer mechanisms in persulfate-activated advanced oxidation processes

doi: 10.1016/j.wse.2025.07.003

  • School of Energy and Environment, Inner Mongolia University of Science and Technology, Baotou 014010, China

Funds:

This work was supported by the Natural Science Foundation of Inner Mongolia Autonomous Region of China (Grant No. 2024LHMS05048).

  • Received Date: 2024-12-11
  • Accepted Date: 2025-04-27
    • Available Online: 2025-10-15
    Abstract
  • Addressing the growing challenge of water contamination, this study comparatively evaluated a persulfate (PDS) system activated by non-radical nitrogen-doped carbon nanotubes (N-CNTs) versus a PDS system activated by radical-based iron (Fe2+), both used for the degradation of bisphenol A (BPA). The N-CNTs/PDS system, driven by the electron transfer mechanism, achieved remarkable 90.9% BPA removal within 30 min at high BPA concentrations, significantly outperforming the Fe2+/PDS system, which attained only 38.9% removal. The N-CNTs/PDS system maintained robust degradation efficiency across a wide range of BPA concentrations and exhibited a high degree of resilience in diverse water matrices. By directly abstracting electrons from BPA molecules, the N-CNTs/PDS system effectively minimised oxidant wastage and mitigated the risk of secondary pollution, ensuring efficient utilisation of active sites on N-CNTs and sustaining a high catalytic rate. The formation of the N-CNTs-PDS* complex significantly enhanced BPA degradation and mineralisation, thereby optimising PDS consumption. These findings highlight the unparalleled advantages of the N-CNTs/PDS system in managing complex wastewater, offering a promising and innovative solution for treating complex industrial wastewater and advancing environmental remediation efforts.

     

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