TiO_2光催化涂层的制备(英文)  

Preparation of TiO_2 Photocatalytic Coatings

作　　者：王慧[1] 曾令可[1] 黄浪欢[2] 任雪潭[1] 程小苏[1] 张明[1] 

机构地区：[1]华南理工大学材料科学与工程学院,广东广州510640 [2]暨南大学化学系,广东广州510632

出　　处：《华南理工大学学报（自然科学版）》2005年第3期28-30,共3页Journal of South China University of Technology(Natural Science Edition)

基　　金：国家自然科学基金资助项目(50276017);广东省自然科学基金资助项目(000475)~~

摘　　要：采用溶胶-凝胶法制得了添加La2O3 的改性TiO2 微粉,用硅酸乙酯作粘结剂,将TiO2 光催化涂层涂覆在载玻片上,讨论了TiO2 含量(质量分数,下同)以及活性炭和沸石对涂层光催化活性的影响.发现:当涂层中TiO2 的含量为70%时,涂层的光催化活性最好;活性炭和沸石都能提高涂层的光催化活性,且活性炭优于沸石,当活性炭的添加量为10% (质量分数)时效果最好.Modified fine TiO 2 powders were prepared by doping La 2O 3 via the sol-gel process. TiO 2 photocatalytic coating was then prepared on a slide substrate, with ethyl silicate as the binder. The influences of some factors, such as TiO 2 content (mass fraction, the same below), active carbon and zeolite, on the photocatalytic activity of the coating were discussed. The results show that the coating is of most excellent photocatalytic activity when the TiO 2 content is 70%, that active carbon and zeolite can improve the photocatalytic activity, and that active carbon has a greater enhancement on the photocatalytic activity, with an optimum addition of 10% (mass fraction).

关 键 词：二氧化钛 光催化涂层 硅酸乙酯 粘结剂 

分 类 号：TB383[一般工业技术—材料科学与工程]