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- W4384702542 abstract "In this paper, the Ag@AgBr/Bi<sub>2</sub>Fe<sub>4</sub>O<sub>9</sub> composite photocatalyst with different modified amounts was synthesized by hydrothermal method and in situ deposition-photoreduction method, and the surface morphology of the catalyst was characterized by SEM and other instruments, and it was found that the two composite photocatalysts were closely bonded and had a large contact area, which could effectively increase the reaction efficiency. We used the degradation efficiency of methylene blue (MB) solutions to analyze the photocatalytic activity of the catalyst. The results show that when the loading of Ag@AgBr is 20%, the degradation efficiency of Ag@AgBr/Bi<sub>2</sub>Fe<sub>4</sub>O<sub>9</sub> on methylene blue solution within 2.5 h under visible light can be as high as 91.61%. The degradation rate of 20% Ag@AgBr/Bi<sub>2</sub>Fe<sub>4</sub>O<sub>9</sub> was 2.98 times higher than Ag@AgBr and 7.85 times higher than that of Bi<sub>2</sub>Fe<sub>4</sub>O<sub>9</sub>. After that, we carried out cycling experiments on the composite photocatalyst with an appropriate amount of 20%, and found that its degradation effect did not decrease significantly. It has better stable performance; The quenching experiment of the composite photocatalyst showed that the main reaction substances degraded by the composite photocatalyst were • OH; At present, photocatalytic degradation still has certain limitations, but the emergence of composite photocatalysts has expanded the selection range of photocatalysts with excellent performance, has potential development space, and is of great significance for the rational exploitation and utilization of mineral resources at home and abroad and solving energy and environmental problems, which is worthy of our in-depth exploration." @default.
- W4384702542 created "2023-07-20" @default.
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- W4384702542 date "2023-06-29" @default.
- W4384702542 modified "2023-09-30" @default.
- W4384702542 title "Preparation of Ag@AgBr/Bi<sub>2</sub>Fe<sub>4</sub>O<sub>9</sub> and Study of Photocatalytic Performance" @default.
- W4384702542 doi "https://doi.org/10.57237/j.cse.2023.02.002" @default.
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