Scholarlink

<p>This study systematically evaluates the efficiency and mechanism of Mn–Co bimetallic oxides for peroxymonosulfate (PMS) activation to degrade bisphenol AF (BPAF). A series of spherical Mn<sub>a</sub>Co<sub>(1-a)</sub>O<sub><i>x</i></sub> catalysts were synthesized via a facile hydrothermal method. Among them, Mn<sub>0.2</sub>Co<sub>0.8</sub>O<sub><i>x</i></sub> exhibited the highest catalytic activity, outperforming other ratios. Under optimized conditions ([BPAF] = 5&#xa0;mg/L, [PMS] = 0.2&#xa0;mM, [Mn<sub>0.2</sub>Co<sub>0.8</sub>O<sub><i>x</i></sub>] = 400&#xa0;mg/L, pH = 7.85), the Mn<sub>0.2</sub>Co<sub>0.8</sub>O<sub><i>x</i></sub> /PMS system achieved 97.7% BPAF removal. Quenching tests and EPR spectroscopy confirmed SO<sub>4</sub>•⁻ and •OH as the predominant reactive oxygen species, with SO<sub>4</sub>•⁻ playing the dominant role. XPS and mechanism analysis indicated that the synergistic Co(III)/Co(II) and Mn(III)/Mn(II) redox cycles drive the efficient PMS activation and BPAF degradation.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Efficiency and Mechanism of Peroxymonosulfate Activation by MnaCo(1–a)Ox for BPAF Degradation

  • 期刊论文

  • 发表日期：

    2026年2月19日

查看全文
  • Jian Zhang,
  • Ningruo Wang,
  • Xuewen Xie,
  • Siyi Liao,
  • Biao Zhong,
  • Bo Feng,
  • Chunxiang Tian,
  • Yajun Xu,
  • Yuhan Chen,
  • Jiewen Xiao

摘要

This study systematically evaluates the efficiency and mechanism of Mn–Co bimetallic oxides for peroxymonosulfate (PMS) activation to degrade bisphenol AF (BPAF). A series of spherical MnaCo(1-a)Ox catalysts were synthesized via a facile hydrothermal method. Among them, Mn0.2Co0.8Ox exhibited the highest catalytic activity, outperforming other ratios. Under optimized conditions ([BPAF] = 5 mg/L, [PMS] = 0.2 mM, [Mn0.2Co0.8Ox] = 400 mg/L, pH = 7.85), the Mn0.2Co0.8Ox /PMS system achieved 97.7% BPAF removal. Quenching tests and EPR spectroscopy confirmed SO4•⁻ and •OH as the predominant reactive oxygen species, with SO4•⁻ playing the dominant role. XPS and mechanism analysis indicated that the synergistic Co(III)/Co(II) and Mn(III)/Mn(II) redox cycles drive the efficient PMS activation and BPAF degradation.