Abstract The delicate design of metal/semiconductor hybrid photocatalysts by coupling the semiconductors with metal nanoparticles is an effective strategy to ameliorate the charge-carrier separation and expand the light absorption range. Here a facile and environment-benign precipitation-reduction reaction at room temperature is demonstrated for in-situ forming Ag/AgIO3 hybrids with intimate contact, which are verified by X-ray diffraction (XRD), field-emission scanning electron microscope (FESEM), energy dispersive spectroscopy (EDS), X-ray photoelectron spectroscopy (XPS) and UV–vis diffuse reflectance spectroscopy (DRS). The results indicated that the type of reductants has an important effect on the content of Ag in the Ag/AgIO3 hybrids, thus affecting the photocatalytic performance. The samples obtained by using KBH4 as the reductant demonstrates the best visible light photocatalytic performance for Rhodamine B degradation and remains well photocatalytic activity after six cycling runs. This work provides an efficient and eco-friendly strategy for the synthesis of metal/semiconductors hybrids with plasma effect for photocatalytic application.

中文翻译：

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不同还原剂对原位还原法制备的Ag/AgIO3杂化物组成和光催化性能的影响

摘要 通过将半导体与金属纳米粒子耦合来精细设计金属/半导体混合光催化剂是改善电荷载流子分离和扩大光吸收范围的有效策略。这里展示了一种在室温下进行的简便且环境友好的沉淀还原反应，用于原位形成紧密接触的 Ag/AgIO3 杂化物，这通过 X 射线衍射 (XRD)、场发射扫描电子显微镜 (FESEM) 验证、能量色散光谱 (EDS)、X 射线光电子能谱 (XPS) 和紫外可见漫反射光谱 (DRS)。结果表明，还原剂的种类对Ag/AgIO3杂化物中Ag的含量有重要影响，从而影响光催化性能。使用 KBH4 作为还原剂获得的样品对罗丹明 B 的降解表现出最佳的可见光光催化性能，并且在六次循环运行后仍保持良好的光催化活性。这项工作为合成具有等离子体效应的金属/半导体杂化物用于光催化应用提供了一种有效且环保的策略。