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This study synthesized core–shell structured CoMn@nitrogen-doped carbon (CoMn@NC) magnetic nanoparticles by annealing CoMn Prussian blue analog (PBA) precursors. The catalytic performance of the catalyst in activating peroxymonosulfate (PMS) to degrade tetracycline hydrochloride (TC) was investigated. Characterization of the catalyst using X-ray diffraction, and scanning electron microscopy revealed the presence of amorphous carbon, CoO, Co, and amorphous manganese species, with CoMn bimetallic particles encapsulated in nitrogen-carbon core–shell structures. At 25 °C and an initial pH of 6.2, with the addition of 50 mg/L catalyst and 200 mg/L PMS, complete degradation of 20 mg/L TC was achieved within 20 min.

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Catalytic Degradation of Tetracycline by Core–Shell CoMn@NC Nanoparticles Via Enhanced Peroxymonosulfate Activation

  • 会议论文

  • 发表日期：

    2025年

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  • Yuankang Bao,
  • Xun Xu,
  • Dongbai Xie

摘要

This study synthesized core–shell structured CoMn@nitrogen-doped carbon (CoMn@NC) magnetic nanoparticles by annealing CoMn Prussian blue analog (PBA) precursors. The catalytic performance of the catalyst in activating peroxymonosulfate (PMS) to degrade tetracycline hydrochloride (TC) was investigated. Characterization of the catalyst using X-ray diffraction, and scanning electron microscopy revealed the presence of amorphous carbon, CoO, Co, and amorphous manganese species, with CoMn bimetallic particles encapsulated in nitrogen-carbon core–shell structures. At 25 °C and an initial pH of 6.2, with the addition of 50 mg/L catalyst and 200 mg/L PMS, complete degradation of 20 mg/L TC was achieved within 20 min.