Abstract Ag3VO4/AgI composites with different Ag3VO4/AgI molar ratios were prepared by sequential precipitation. These composites were more active than Ag3VO4 and AgI in photodegradation of aqueous dyes and tetracycline hydrochloride under visible irradiation. Ag3VO4/AgI with an Ag3VO4/AgI molar ratio of 1/20 showed the highest photocatalytic activity and good recyclability. The improved photocatalytic activity of Ag3VO4/AgI can be attributed to the efficient separation of photogenerated electron-hole pairs. A possible photocatalytic mechanism is proposed.

中文翻译：

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Ag 3 VO 4 /AgI复合材料在可见光下光催化降解染料和盐酸四环素

摘要 采用连续沉淀法制备了不同Ag3VO4/AgI摩尔比的Ag3VO4/AgI复合材料。这些复合材料在可见光照射下对水性染料和盐酸四环素的光降解比 Ag3VO4 和 AgI 更活跃。Ag3VO4/AgI 摩尔比为 1/20 的 Ag3VO4/AgI 显示出最高的光催化活性和良好的可回收性。Ag3VO4/AgI 光催化活性的提高可归因于光生电子-空穴对的有效分离。提出了一种可能的光催化机制。