钒掺杂TiO_2纳米粉体光催化降解甲基橙研究  

Research on photocatalytic activity of vanadium doped Nano-TiO_2 for methyl orange degradation

作　　者：晏翠琼[1] 陈光学[1] 陶昌[1] 张桂琴[1] 

机构地区：[1]曲靖师范学院物理与电子工程学院,云南曲靖655011

出　　处：《云南大学学报（自然科学版）》2010年第1期48-51,共4页Journal of Yunnan University(Natural Sciences Edition)

基　　金：云南省教育厅科学研究基金资助项目(06Y049A)

摘　　要：采用溶胶-凝胶法制备掺杂V的纳米TiO2光催化剂,研究了V不同掺杂量及热处理温度对紫外光照下TiO2光催化降解甲基橙性能的影响.结果表明,经V掺杂改性的TiO2增加了晶相的转变温度,吸收光谱发生红移,光催化活性有明显提高,在本试验范围内V的最佳掺杂摩尔分数为0.1%,最佳烧结温度为400℃.The V - doped nano - TiO2 photocatalyst was prepared by sol - gel method. The influence of different doping vanadium amount and heat treatment temperature on the photocatalytic activity with ultraviolet irradiation was investigated. The results show that the phase change temperature of the doped nano -TiO2 increases. The absorption spectrum red -shift, and the photocatalytic activity is obviously improved. In this paper, the optimum doping content is 0. 1% , and the heart - treated temperature is 400℃.

关 键 词：溶胶-凝胶法 TIO2 钒掺杂 光催化 甲基橙 

分 类 号：TB383[一般工业技术—材料科学与工程]