几种类型纳米TiO_2的制备及光催化活性研究  

The Preparation of Different Kinds of Nano TiO_2 and Photo Catalytic

作　　者：杨露[1] 张甜[1] 叶芳云[1] 刘鹏[1] 

机构地区：[1]武汉理工大学理学院化学系,湖北武汉430070

出　　处：《广州化工》2011年第10期82-84,共3页GuangZhou Chemical Industry

摘　　要：通过水解-沉淀法制备出一系列I和Fe掺杂纳米TiO2粉体。掺杂TiO2的物理性质通过XRD、UV-vis漫反射表征,光催化活性通过对MB的光催化降解来表征。讨论了不同掺杂元素对TiO2的晶型、晶粒尺寸、光响应程度及光催化活性的影响。结果表明掺杂可以减小晶粒尺寸,增加TiO2的紫外光和可见光响应程度和提高TiO2光催化活性。A series of photo catalysts were synthesized by iron and iodine doped TiO2 particles.The characteristics of doped TiO2 were evaluated by X-ray diffraction（XRD）,UV-vis diffuse reflectance spectra,and the degradation of MB.The influence of different doping elements to crystal type,grain size,extent of photo response and photo catalysis of TiO2 were studied.The result was that the doping can decrease the grain size,increase the extent of photo response,and improve the photocatalysis activity of TiO2.

关 键 词：TIO2 掺杂 光催化 光响应 

分 类 号：TQ426.81[化学工程]