Ag/AgCl/SnO2复合光催化剂的制备及其光催化性能研究

摘要

采用湿化学法制备不同摩尔比的Ag/AgCl/SnO2复合光催化剂，并通过X射线粉末衍射和扫描电子显微镜对其组成与形貌结构进行表征。研究发现 Ag/AgCl 纳米颗粒均匀负载在SnO2微米片上。以500 W氙灯为光源，以罗丹明B为目标降解物，光催化活性实验结果表明2：1 Ag/AgCl/SnO2复合光催化剂表现出最强的光催化活性，并具有较好的光催化稳定性。%Ag/AgCl/SnO2 composite photocatalysts with different mole ratio were synthesized via wet chemical method. The obtained products were characterized by X-ray powder diffraction (XRD) and scanning electron microscope (SEM) on the composition and morphology structure, showing Ag/AgCl nanoparticles were dispersed on the surface of SnO2nanoplates uniformly.The photocatalytic activity of Ag/AgCl/SnO2 were studied by degradation of RhB under 500 W Xe light irradiation, which demonstrated that 2:1 Ag/AgCl/SnO2 showed the highest photocatalytic activity in degradation of RhB solution. What’s more it had excellent stability.