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The poor stability of the silver-based semiconductor photocatalyst is an insurmountable problem. Coupling different proportions of AgBr and Ag2CO3 together by in situ reduction method produced a series of novel… Click to show full abstract
The poor stability of the silver-based semiconductor photocatalyst is an insurmountable problem. Coupling different proportions of AgBr and Ag2CO3 together by in situ reduction method produced a series of novel AgBr/Ag2CO3 composite photocatalysts, and was accompanied by the generation of Ag@AgBr/Ag2CO3 heterojunction. The effects of different ratios of AgBr and Ag2CO3 on the photocatalytic degradation of rhodamine B under visible light irradiation were studied by XRD, UV–Vis DRS, SEM, HRTEM, TEM and XPS characterization techniques. The best ratio and UV irradiation time were explored. In addition, the photocatalytic mechanism of the photocatalyst was described. The Ag NPs formed on the surface of AgBr/Ag2CO3 may be one of the reasons for effectively improving the separation efficiency of electron–hole pairs (e[Formula: see text]h[Formula: see text], accelerating dye degradation and improving photocatalytic stability.
Journal Title: Nano
Year Published: 2021
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