Abstract In order to solve the most difficult organic matter pollution in the water pollution problem, we successfully prepared a sample Ag2O/TiO2 heterojunction nanocomposite material using a two-step method, and used this material to test the degradation of rhodamine B (RhB). Compared with pure Ag2O and pure TiO2, Ag2O/TiO2 composites have improved degradation rate of RhB and enhanced photocatalytic activity under ultraviolet and visible light irradiation. Through SEM, UV-visible diffuse reflection, XPS and other characterizations, it can be seen that Ag2O nanoparticles are deposited on the inner and outer surfaces of TiO2 nanotubes, the absorption range of the sample has been significantly widened, and the heterojunction structure has been successfully constructed. These conclusions have a positive effect on the photocatalytic degradation of the sample.

中文翻译：

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两步法制备Ag2O/TiO2纳米复合材料及其降解RhB的研究

摘要 为了解决水污染问题中最棘手的有机物污染问题，我们采用两步法成功制备了样品Ag2O/TiO2异质结纳米复合材料，并用该材料测试了罗丹明B（RhB）的降解。与纯 Ag2O 和纯 TiO2 相比，Ag2O/TiO2 复合材料在紫外和可见光照射下提高了 RhB 的降解率和增强的光催化活性。通过SEM、UV-可见漫反射、XPS等表征，可以看出Ag2O纳米粒子沉积在TiO2纳米管的内外表面，样品的吸收范围得到了显着的拓宽，异质结结构得到了改善。成功构建。