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<p>In this study, resin carbon supported CoFe<sub>x</sub>O<sub>y</sub> catalyst was prepared and was applied to activate peroxysulphate to degrade methyl orange (MO). The effects of catalyst dosage, PMS dosage, pH and co-existing ion on the degradation were investigated. The results demonstrated that the effective MO degradation was achieved after 12&#xa0;min under conditions of 0.1&#xa0;g/L CoFe<sub>x</sub>O<sub>y</sub>, 0.5&#xa0;mM PAA, and initial pH 3. Hydroxyl radical (·OH) and sulfate radical (SO<sub>4</sub>·<sup>−</sup>) were proved to exist in the CoFe<sub>x</sub>O<sub>y</sub>/PAA system based on the scavenging tests, and SO<sub>4</sub>·<sup>−</sup> contributed mainly to MO degradation. Finally, the possible degradation mechanism was proposed.</p>

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In-Situ Synthesis of Resin Carbon-Supported CoFexOy Catalyst with Enhanced Catalytic Performance for Dye Degradation in Wastewater

  • 期刊论文

  • 发表日期：

    2025年7月10日

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  • Fanyue Meng,
  • Bing Song

摘要

In this study, resin carbon supported CoFexOy catalyst was prepared and was applied to activate peroxysulphate to degrade methyl orange (MO). The effects of catalyst dosage, PMS dosage, pH and co-existing ion on the degradation were investigated. The results demonstrated that the effective MO degradation was achieved after 12 min under conditions of 0.1 g/L CoFexOy, 0.5 mM PAA, and initial pH 3. Hydroxyl radical (·OH) and sulfate radical (SO4·−) were proved to exist in the CoFexOy/PAA system based on the scavenging tests, and SO4·− contributed mainly to MO degradation. Finally, the possible degradation mechanism was proposed.