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<p>The bio-electro-fenton (BEF) system is a novel technology that can be utilized to degrade both emerging and persistent pollutants while producing clean, green, and sustainable energy. Various catalysts that have a high active surface area are employed in these systems to enhance the oxygen reduction reaction (ORR) efficiency. In this study, the Nickel/Cobalt metal–organic framework (Ni/Co BTC-MOF) as heterogeneous catalyst was synthesized and deposited by the cathodic electrochemical deposition method on the carbon felt (CF) and graphite plate (GP) electrodes. The results of FT-IR, Field Emission Scanning Electron Microscopy (FE-SEM), X-ray Diffraction (XRD), and Energy Dispersive X-ray spectroscopy (EDS) analysis proved that the synthesis of Ni/Co-BTC MOF successfully carried out. The performance and positive effect of the modified electrodes in ORR were investigated and compared in electrical energy generation. Finally, bio-electro-degradation of bisphenol-S (BPS) as one of the endocrine-disrupting compounds (EDCs) was studied by the optimal modified electrode. According to the results of electrochemical experiments, the highest maximum power density is equal to 133.6 mW/m<sup>2</sup>, which is related to Ni/Co-BTC@CF, and the highest production voltage is related to Ni/Co-BTC@CF, Ni/Co-BTC@GP, CF, and GP, respectively. The removal efficiency levels of bisphenol S in this system at different concentrations of 1.0, 5.0, and 10.0&#xa0;mg/l after 24&#xa0;h were 98.0%, 84.0%, and 41.0%, respectively. Based on the obtained results, the improved BEF system with Ni/Co-BTC@CF catalyst can be a suitable technology to achieve more electricity flow and at the same time have a positive effect on the decomposition of bisphenol S pollutant.</p>

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Bio-electro-fenton system assisted with metal–organic framework for degradation of bis-phenol S in wastewater as an emerging contaminant

  • 期刊论文

  • 出版模式：

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  • 发表日期：

    2025年2月22日

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  • Maryam Alinasab,
  • Nahid Navidjouy,
  • Saber Alizadeh,
  • Mostafa Rahimnejad

摘要

The bio-electro-fenton (BEF) system is a novel technology that can be utilized to degrade both emerging and persistent pollutants while producing clean, green, and sustainable energy. Various catalysts that have a high active surface area are employed in these systems to enhance the oxygen reduction reaction (ORR) efficiency. In this study, the Nickel/Cobalt metal–organic framework (Ni/Co BTC-MOF) as heterogeneous catalyst was synthesized and deposited by the cathodic electrochemical deposition method on the carbon felt (CF) and graphite plate (GP) electrodes. The results of FT-IR, Field Emission Scanning Electron Microscopy (FE-SEM), X-ray Diffraction (XRD), and Energy Dispersive X-ray spectroscopy (EDS) analysis proved that the synthesis of Ni/Co-BTC MOF successfully carried out. The performance and positive effect of the modified electrodes in ORR were investigated and compared in electrical energy generation. Finally, bio-electro-degradation of bisphenol-S (BPS) as one of the endocrine-disrupting compounds (EDCs) was studied by the optimal modified electrode. According to the results of electrochemical experiments, the highest maximum power density is equal to 133.6 mW/m2, which is related to Ni/Co-BTC@CF, and the highest production voltage is related to Ni/Co-BTC@CF, Ni/Co-BTC@GP, CF, and GP, respectively. The removal efficiency levels of bisphenol S in this system at different concentrations of 1.0, 5.0, and 10.0 mg/l after 24 h were 98.0%, 84.0%, and 41.0%, respectively. Based on the obtained results, the improved BEF system with Ni/Co-BTC@CF catalyst can be a suitable technology to achieve more electricity flow and at the same time have a positive effect on the decomposition of bisphenol S pollutant.