摘要
提出了一种以TiSO4为前驱体的制备锐钛矿型纳米TiO2的液相沉淀法。通过控制适宜的制备条件,可将Ti4+的初始浓度提高到1 5mol·L-1。以丙烯酰胺的光催化降解为模型反应,考察了所制备TiO2的光催化活性。与萃取沉淀法制备的TiO2和工业催化剂相比,该法制备的TiO2不仅产率高,而且催化活性较好。
A liquid-phase precipitation method for anatase nanoparticle titania was developed using titanium sulphate as the precursor.Initial Ti^(4+) concentration of 1.5 mol·L^(-1) was attained under appropriate preparation condition.Photocatalysic activity of titana prepared by this method was investigated using photocatalysic degradation of acrylamide as the model reaction.Titania prepared by this method,with higher preparation yield and higher catalytic activity,was superior to that by extraction precipitation.
出处
《工业催化》
CAS
2004年第10期30-33,共4页
Industrial Catalysis
关键词
液相沉淀法
TIO2
丙烯酰胺
光催化氧化
liquid-phase precipitation
titania
photocatalytic acrylamide oxidation
