TiO2 optical coating layers for self-cleaning applications

被引:175
作者
Euvananont, C. [1 ]
Junin, C. [1 ]
Inpor, K. [1 ]
Limthongkul, P. [1 ]
Thanachayanont, C. [1 ]
机构
[1] Natl Met & Mat Technol Ctr, Klongluang 12120, Pathumthani, Thailand
关键词
sol-gel processes; optical coating; titanium dioxide;
D O I
10.1016/j.ceramint.2007.09.043
中图分类号
TQ174 [陶瓷工业]; TB3 [工程材料学];
学科分类号
0805 ; 080502 ;
摘要
TiO2 films deposited by various coating techniques were investigated for self-cleaning applications. The optical coating layers of TiO2 films prepared from a sol-gel precursor were deposited on glass substrates using spin coating, dip coating and screen printing techniques. Effects of film deposition techniques on crystal structure, microstructure, thickness, photocatalytic activity, hydrophilicity and optical properties of the films were investigated using XRD, AFM, SEM, surface profilometer, UV-vis spectrophotometer and contact angle measurement. Dip coating the TiO2 optical film two and three times resulted in superhydrophilic surfaces. Increasing number of dipping times was found to increase the photocatalytic activity. (c) 2007 Elsevier Ltd and Techna Group S.r.l. All rights reserved.
引用
收藏
页码:1067 / 1071
页数:5
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