摘要
采用微波辐射加热法制备出负载型TiO_2/SiO_2光催化剂,用XRD、FT-IR和UV-Vis DRS进行了表征。以甲基橙为模拟污染物,考查了微波时间、光催化剂的添加量和光照时间等因素对光催化活性的影响。结果表明:SiO_2上负载的TiO_2光催化剂,其晶体具有锐钛矿型结构,并显示出明显的量子效应,SiO_2和TiO_2没有产生化学键;且微波辐射时间在20min、光催化剂添加量为0.25g和光照时间为20min时,光催化剂的催化效应达到最大。
The Nano-TiO2 photocatalyst were prepared by microwave heating method. And characterized by XRD, LRS and UV-Vis DRS. By simulating contaminant, methyl orange is investigated. The light of the catalyst for microwave time and microwave time factors influence of optical catalytic activity. It is shown that the Nano-TiO2 photocatalyst by microwave heating method, whose crystal type is anatase, hasobvious quantum effect. And microwave heating method can improve the activitives of the photocatalyst.
出处
《安徽化工》
CAS
2015年第5期34-36,共3页
Anhui Chemical Industry
关键词
微波辐射
TiO2/SiO2光催化剂
催化性能
结构表征
microwave irradiative
TiO2 / SiO2 photocatalystics
catalytic performance
structure characterization
