La-N共掺杂改性TiO_2光催化性能研究  

Study on performance of the La-N co-doped TiO_2 modification photocatalyst

作　　者：齐蕾[1] 郑经堂[1] 曲降伟[1] 杨哲[1] 

机构地区：[1]中国石油大学华东重质油国家重点实验室,山东东营257061

出　　处：《应用化工》2009年第7期933-936,共4页Applied Chemical Industry

基　　金：国家自然科学基金资助项目(20776159)

摘　　要：用溶胶-凝胶法制备了La、N共掺杂的TiO2光催化剂,以甲基橙为模拟污染物,考察了其光催化活性。结果表明,La-N共掺杂TiO2光催化剂与单掺N的TiO2以及纯TiO2相比,光催化活性有明显提高,当煅烧温度为600℃,添加La的摩尔分数为0.10%时,光催化活性最佳。The La and N co-doping TiO2 composite photocatalyst were prepared by sol-gel method. The photocatalytic activity was investigated by the photocatalytic degradation of methyl orange. It is found that the photocatalyst has higher photocatalytic activity, when the calcined temperature is 600 ℃, the photocatalytic activity of 0.10% La （in mole） added is the best of all the prepared samples.

关 键 词：二氧化钛 甲基橙 共掺杂 光催化 

分 类 号：TQ426[化学工程] O643[理学—物理化学]