AgCl-SnO_2光催化剂的制备及其性能研究  

Study on the synthesis and property of AgCl-SnO_2 catalyst system

作　　者：梁英[1] 刘洁杰[1] 喻洋[1] 

机构地区：[1]湖北文理学院化学工程与食品科学学院,襄阳441053

出　　处：《化工新型材料》2016年第8期122-124,共3页New Chemical Materials

基　　金：国家自然科学基金项目(51378183);湖北省教育厅优秀中青年科技创新团队项目(T201215)资助

摘　　要：以硝酸银、五水氯化锡以及十六烷基三甲基氯化铵(CTAC)等为原料,利用水热法制备出AgCl-SnO2复合型光催化剂。采用紫外漫反射(UV-DRS)、X射线衍射(XRD)和扫描电镜(SEM)等手段对产物的结构和形貌进行了表征;在可见光照射下,以亚甲基蓝溶液的光催化降解实验来评价样品的活性。结果表明:经AgCl-SnO2复合后,对可见光的响应增强,可见光催化效率明显提高,在Sn/Ag=0.4时,所制光催化剂在50min内,对10mg/L亚甲基蓝的降解率达98.6%。AgC1-SnO2 composite photocatalyst was prepared from silver nitrate, stannie chloride pentahydrate and CTAC by hydrothermal method. The obtained samples were characterized by X-ray diffraction（XRD）, scanning electron mi- croscopy（SEM） ,and UV-Vis diffuse reflectance spectroscopy. The photocatalytic activity of samples was evaluated by the degradation of methylene blue solution under the visible light irradiation. After modification with SnOz doped AgC1 samples enhanced response to visible light and improved visible-light photocatalytic activity. In the optimal conditions with Sn： Ag= 0.4,degradation rate of methylene blue with the initial concentration of 10mg/L can reach up to 98.6 % in 50minutes.

关 键 词：AgCl-SnO2 水热法 可见光催化 亚甲基蓝 

分 类 号：O643.36[理学—物理化学]