水热法制备氧化锌空心球及光催化性能研究  

The Study of ZnO Hollow Spheres via Hydrothermal Method and Photocatalytic Activity

作　　者：唐兴兴[1] 张富青[1] 袁军[1] 

机构地区：[1]武汉工程大学化学与环境工程学院,湖北武汉430073

出　　处：《山东化工》2016年第20期8-10,13,共4页Shandong Chemical Industry

基　　金：武汉工程大学第七届研究生教育创新基金;编号:CX2015152

摘　　要：以柠檬酸钠为辅助剂采用低温水热法制备了ZnO空心微球,采用XRD、SEM、TEM、IR和BET等方法对所制备的产物进行表征。并以亚甲基蓝溶液模拟有机污染物,探究在该条件下所制备的光催化剂ZnO对亚甲基蓝溶液的降解效果。结果发现:与商业氧化锌相比,采用水热法合成得到2~4μm的ZnO中空微球在紫外光的照射下具有优异的降解效果,主要由于其具有较大的比表面积(22.5 m^2·g^(-1))和特殊的中空结构。With the assistance of trisodium citrate,the hollow spheres of ZnO was obtained successfully by low-temperature hydrothermal method. The as-prepared products were characterized by XRD,SEM,TEM,IR and BET. And the aqueous solution of methylene blue as simulated organic pollutants,investigating the photocatalytic activitie of the as-prepared ZnO. The results showed that the hollow-sphered ZnO with the diameter around 2 ~ 4 μm was prepared by the hydrothermal method. It had better photocatalytic activity than commercial ZnO under ultraviolet light. The excellent photocatalytic activity is mainly due to its unique hollow structure and larger surface area（22. 5 m^2·g^（-1））.

关 键 词：氧化锌空心球 光催化降解 亚甲基蓝 

分 类 号：TB383.1[一般工业技术—材料科学与工程]