ZnO/WO3微米球制备及其光催化性能研究  

Preparation and Photocatalytic Activity of ZnO/WO3 Microspheres

作　　者：李鹏[1] 张红燕[1] 张军[1] LI Peng;ZHANG Hongyan;ZHANG Jun(School of Physics Science and Technology,Xinjiang University,Urumqi Xinjiang 830046,China)

机构地区：[1]新疆大学物理科学与技术学院,新疆乌鲁木齐830046

出　　处：《新疆大学学报（自然科学版）》2020年第1期8-11,28,共5页Journal of Xinjiang University(Natural Science Edition)

基　　金：国家自然科学基金(61665011);新疆科技项目(2019D01C036);新疆大学博士研究启动项目(62031224710).

摘　　要：以醋酸锌和氧化钨(WO3)为前躯体,通过液相溶胶凝胶法制备氧化锌/氧化钨(ZnO/WO3)微米球光催化剂,利用扫描电子显微镜、X射线粉末衍射仪、紫外可见分光光度计等测试方法对样品形貌、组成和光吸收性能进行表征.以染料亚甲基蓝为目标降解物,在紫外光照射下,研究所制备样品的光催化活性.结果表明,W的加入可有效提高ZnO光催化活性.当ZnO中W掺杂浓度为4 mol%时,实验制备出的ZnO/WO3微米球光催化剂的催化效果相对于其他浓度最好,通过紫外光光照仅需80min即可使亚甲基蓝的降解率达95%.A zinc oxide/tungsten oxide(ZnO/WO3)microsphere photocatalyst was prepared by liquid phase sol-gel method using zinc acetate and tungsten oxide(WO3)as precursors.The morphology,composition and light absorption properties of the samples were characterized by scanning electron microscopy,X-ray powder diffractom-etry and UV-visible spectrophotometer.The photocatalytic activity of the prepared sample was studied under the irradiation of ultraviolet light with the dye methylene blue as the target degradation product.The results show that the addition of W can effectively improve the photocatalytic activity of ZnO.When the W doping concentration of ZnO is 4 mol%,the prepared ZnO/WO3photocatalyst has the best catalytic effect,and the degradation rate of methylene blue in the ultraviolet light for 80 min is 95%.

关 键 词：氧化锌 氧化锌/氧化钨 光催化 

分 类 号：O434.12[机械工程—光学工程]