(中南大学粉末冶金国家重点实验室，长沙 410083)
摘 要: 基于超声波辅助，运用浸渍-沉淀-光致还原法制备了活性炭负载纳米Ag@AgCl材料。利用XRD、XPS、TEM、SEM及EDS对材料的结构与形貌进行了表征，利用紫外可见漫反射光谱和光催化降解实验对材料的光催化特性进行了测试。结果表明：活性炭负载纳米Ag@AgCl材料的物相由非晶态碳、氯化银及金属银组成，其中Ag@AgCl的平均粒径为80 nm；经100 min光催化后，活性炭负载纳米Ag@AgCl材料对MO的光催化降解率为95%，且循环降解过程中该材料具有一定的稳定性。
关键字: Ag@AgCl材料；活性炭；光催化特性
（State Key Laboratory of Powder Metallurgy, Central South University, Changsha 410083, China）
Abstract:The deposition-precipitation-photoreduction method was used to prepare nano-Ag@AgCl loaded activated carbon material with the assistance of sonication. The structure and morphologies of the material were characterized by XRD, XPS, TEM, SEM and EDS, while the photocatalytic properties were characterized by UV-Vis-DRS and degradation of MO. The results show that the material is composed of amorphous carbon, silver chloride and metallic silver. The average diameter of Ag@AgCl nanoparticles is 80 nm. After photocatalytic for 100 min, the removal efficiency of Ag@AgCl-AC is 95%. And recycling test results show that Ag@AgCl-AC has relative stability.
Key words: Ag@AgCl material; activated carbon; photocatalytic properties
