醋酸催化制备镧氮共掺钛基光催化剂  

Preparation and properties of lanthanum and nitrogen-doped TiO_2 photocatalyst catalyzed by the acetic acid

作　　者：张红花[1] 左玉香[1] 夏雯[1] 陈燕[1] 

机构地区：[1]盐城师范学院化学化工学院,江苏盐城224002

出　　处：《化学工程师》2016年第6期65-66,33,共3页Chemical Engineer

基　　金：校级自然科学研究项目(15YCKLQ004)

摘　　要：以钛酸四丁酯为原料,溶胶-凝胶法制备镧氮共掺钛基光催化剂。设计正交表探索无水乙醇(A)、水(B)、HAc(C)、尿素(D)、硝酸镧(E)5个因素对光催化活性的影响。结果表明,HAc的用量对降解率的影响最大,其次是硝酸镧、尿素、醇及水的用量。最佳样品1h降解10mg·L^(-1)甲基橙的降解率达93.64%。Lanthanum and Nitrogen-doped TiO_2 photocatalyst was prepared by sol-gel method with tetrabutyl titanate. Orthogonal table was designed to explore the influences on photo-catalytic properties,such as,anhydrous ethanol（A）, water（B）, glacial acetic acid（C）, urea（D）and lanthanum nitrate（E）.The results show that the dosage of glacial acetic acid plays the most important role, followed by the amount of lanthanum nitrate, urea, ethanol, and then the water. The optimum reaction conditions were obtained by experiments,and the degradation ration of 10mg·L^- 1 methyl orange is 96.5% in 1 hour.

关 键 词：二氧化钛 光催化 溶胶-凝胶法 正交设计 

分 类 号：O643.3[理学—物理化学]