摘要
以Ti(SO4)2和ZnSO4.7H2O为原料,以一定体积分数的乙醇作溶剂,用改进后的共沉淀法制备纳米ZnO-TiO2复合光催化材料,探讨了Zn与Ti物质的量之比、煅烧温度、乙醇体积分数等制备条件对样品光催化活性的影响,并采用XRD,TG-DSC,BET,UV等测试手段对其进行表征。光催化活性测试表明,初次使用和重复使用2次后的ZnO-TiO2纳米复合材料对甲基橙的降解率均远高于TiO2。
With Ti（SO4）2 and ZnSO4·7H2O used as raw materials and ethanol as solvent, nanometer ZnO-TiO2 was prepared by modified coprecipitation method. The effects of Ti-Zn ratio, calcination temperature, and ethanol concentration on photocatalytic activity were investigated. The samples were characterized by XRD, TG-DSC, BET and UV, etc. , and the results of photocatalytic degradation of methyl orange indicate that the photocatalytic activity of nano-ZnO-TiO2 after the first use and the third use are higher than that of TiO2.
出处
《武汉科技大学学报》
CAS
2007年第6期595-598,共4页
Journal of Wuhan University of Science and Technology
基金
湖北省耐火材料与高温陶瓷重点实验室-省部共建国家重点实验室培育基地开放基金资助项目(G0607)
关键词
纳米ZnO-TiO2
复合材料
光催化剂
结构表征
nano-ZnO-TiO2
coupled semiconductor material
photocatalyst
structural characterization
