Zn-Doped MnCO3/CS Composite Photocatalyst for Visible-Light-Driven Decomposition of Organic Pollutants

文献类型： 外文期刊

第一作者： Liang, Hui

作者： Liang, Hui;Liu, Tongjin;Li, Ruijuan;Li, Rumei;Zhu, Yuxiao;Fang, Feng;Zhao, Yongxin

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关键词： visible-light-driven photocatalysis; carbon-based catalysts; organic pollutants

期刊名称：MOLECULES （ 影响因子：4.6； 五年影响因子：4.9 ）

ISSN：

年卷期： 2024 年 29 卷 5 期

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收录情况： SCI

摘要： Zn-doped MnCO3/carbon sphere (Zn-doped MnCO3/CS) composites were synthesized using a simple hydrothermal procedure. Among various samples (ZM-50, ZM-05, and ZMC-0), the ternary Zn-doped MnCO3/CS (ZMC-2) catalyst demonstrated excellent visible light-induced photocatalytic activity. This improvement comes from the Zn addition and the conductive CS, which facilitate electron movement and charge transport. The catalyst exhibited efficient degradation of methylene blue (MB) over a wide pH range, achieving a removal efficiency of 99.6% under visible light. Radical trapping experiments suggested that center dot OH and center dot O-2(-) played essential roles in the mechanism of organic pollutant degradation. Moreover, the catalyst maintained good degradation performance after five cycles. This study offers valuable perspectives into the fabrication of carbon-based composites with promising photocatalytic activity.

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