哈尔滨工程大学学报2011，Vol.32Issue(8)：1098-1102,5.DOI:10.3969/j.issn.1006-7043.2011.08.024
La掺杂混晶TiO2薄膜的制备及光催化活性
Preparation and photocatalysis activity of La-doped mixed crystal TiO2 films
摘要
Abstract
In order to improve the photodegradation of TiO2 and reduce environmental pollutants by using light energy , TiO2 photocatalyst modified by doping was studied in this paper. La-doped TiO2 composite films were prepared by adding lanthanum nitrate into the mixed solution of ammonium fluotitanate and boric acid and by liquid phase deposition( LPD) method. The composition, structure, and surface form of titanium dioxide thin films were studied in XRD, UV-Vis, XPS, and SEM means, and the photocatalytic activity of the thin films was evaluated by the degradation of the methyl orange solution. The results show that when the mol ratio of boric acid and ammonium fluotitanate is 2 ~ 4, the La-doped TiO2 films are composed of anatase and rutile mixed crystal; when the heat treatment temperature is 400℃, and the mixed volume of lanthanum nitrate is 0.01 mol/L,the film has good photocatalytic activity.关键词
液相沉积法/TiO2/掺镧/薄膜/光催化Key words
liquid phase deposition/TiO2/La-doped/thin film/photocatalytic activity分类
化学化工引用本文复制引用
陈少华,李宣东,韩喜江,刘新荣,孙浩杰,王文英..La掺杂混晶TiO2薄膜的制备及光催化活性[J].哈尔滨工程大学学报,2011,32(8):1098-1102,5.基金项目
黑龙江省自然科学基金资助项目(B200503). （B200503）
