A sol-gel dip/spin coating method to prepare titanium oxide films

被引：38
作者：
Wang, Xiaodong [1 ]
Shi, Fang [1 ]
Gao, Xiaoxia [1 ]
Fan, Caimei [2 ]
Huang, Wei [1 ]
Feng, Xianshe [3 ]
机构：
[1] Taiyuan Univ Technol, Key Lab Coal Sci & Technol, Minist Educ & Shanxi Prov, Taiyuan 030024, Peoples R China
[2] Taiyuan Univ Technol, Coll Chem & Chem Engn, Taiyuan 030024, Peoples R China
[3] Univ Waterloo, Dept Chem Engn, Waterloo, ON N2L 3G1, Canada
来源：
THIN SOLID FILMS | 2013年 / 548卷
基金：
中国国家自然科学基金; 中国博士后科学基金;
关键词：
Spin-coating; Titania; Thin films; Photocatalysis; Sol-gel; MEMBRANES; PERFORMANCE; DEPOSITION; CATALYSIS; FLOW;
D O I：
10.1016/j.tsf.2013.08.056
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
A dip/spin coating method for the preparation of titanium oxide films was proposed. Instead of placing an oxide sol on top of a substrate surface, the dip/spin coating was accomplished on the lower surface of the substrate where gravitational force exerted on the colloidal particles during spreading under a centrifugal force. The resulting TiO2 films were compared to those prepared using the conventional spin-coating and dip-coating methods. All the films were found to be composed primarily of anatase with a small amount of brookite. Compared to the films prepared using the conventional spin-coating and dip-coating methods, the TiO2 films fabricated using the dip/spin method had small and uniform grains with a unique structure, resulting in an increased photocatalytic activity when tested for degradation of methyl orange under UV irradiation. (C) 2013 Published by Elsevier B.V.
引用
收藏
页码：34 / 39
页数：6
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