4.6 Article

Mn doping enhances the photocatalytic performance of Bi2Fe4O9 photocatalyst

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OPTICAL MATERIALS
卷 142, 期 -, 页码 -

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ELSEVIER
DOI: 10.1016/j.optmat.2023.114112

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Bi2Fe4O9; Doping; Rhodamine B; Photocatalytic

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The Bi2Fe4((1-x))Mn4xO9 photocatalyst was prepared through coprecipitation-hydrothermal method. Doping Mn2+ reduced the photogenerated carrier recombination efficiency of Bi2Fe4O9, accelerated the electron transfer efficiency, and showed good degradation effect for RhB. When Mn2+ doping was 6%, the degradation effect for organic dyes was excellent, reaching 82.29%, and the reaction rate constant was 0.00665min(-1), which was 2.5 times higher than that of Bi2Fe4O9. The main active component in the dye degradation process was center dot OH, consistent with Bi2Fe4O9.
Bi2Fe4((1-x))Mn4xO9 photocatalyst was prepared by the coprecipitation-hydrothermal method. After doping Mn2+, the photogenerated carrier recombination efficiency of Bi2Fe4O9 was reduced, the electron transfer efficiency was accelerated, and had a good degradation effect for RhB. When Mn2+ doping was 6%, the degradation effect of organic dyes was very good, reaching 82.29%, and the reaction rate constant was 0.00665min(-1), which was 2.5 times that of Bi2Fe4O9. The main active component of the dye degradation process was center dot OH, which was consistent with that of Bi2Fe4O9.

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