Facile construction of a Bi2WO6/Mn0.2Cd0.8S S-scheme heterojunction for enhancing the photocatalytic tetracycline degradation performance and mechanism study

IF 5.8 2区材料科学 Q2 CHEMISTRY, PHYSICAL

Journal of Alloys and Compounds Pub Date : 2025-04-11 DOI:10.1016/j.jallcom.2025.180391

Simin Li, Jingwen Zhang, Yuanyuan Li, Ying Peng, Hao Wu, Puhui Deng, Linping Zhang, Yu Hou

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引用次数: 0

Abstract

Constructing S-scheme heterojunction photocatalysts for the degradation of antibiotics has been proved to be very useful. In this work, Bi₂WO₆/Mn_0.2Cd_0.8S S-scheme heterojunction was designed by in situ growing spherical Mn_0.2Cd_0.8S onto flower-like Bi₂WO₆. The photocatalytic degradation of tetracycline performance of Bi₂WO₆/Mn_0.2Cd_0.8S was significantly improved compared with that of pure Bi₂WO₆ or Mn_0.2Cd_0.8S due to the high photogenerated charge carrier separation rate and the retention of strong redox capacity. The photocatalytic degradation pathway of TC was deduced using 3D-EEM and LC-MS, and the charge transfer mechanism of the Bi₂WO₆/Mn_0.2Cd_0.8S S-scheme heterojunction was verified through free radical quenching experiments, EPR, XPS and DFT calculations. This study offers a valuable approach for designing efficient photocatalysts to remove antibiotics from water.

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来源期刊

Journal of Alloys and Compounds 工程技术-材料科学：综合

CiteScore

11.10

自引率

14.50%

发文量

5146

审稿时长

67 days

期刊介绍： The Journal of Alloys and Compounds is intended to serve as an international medium for the publication of work on solid materials comprising compounds as well as alloys. Its great strength lies in the diversity of discipline which it encompasses, drawing together results from materials science, solid-state chemistry and physics.