Sol-gel fabrication and enhanced optical properties, photocatalysis, and surface wettability of nanostructured titanium dioxide films

被引：13
作者：
Alzamani, Mehdi [1 ]
Shokuhfar, Ali [1 ]
Eghdam, Ebrahim [1 ]
Mastali, Sadegh [2 ]
机构：
[1] KN Toosi Univ Technol, Dept Mech, Adv Mat & Nanotechnol Res Lab, Tehran, Iran
[2] MAPNA Turbine Blade Co, Dept Engn, Tehran, Iran
来源：
MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING | 2013年 / 16卷 / 04期
关键词：
TiO2; film; Photocatalytic activity; Sol-gel; TIO2; TEMPERATURE; SUPERHYDROPHILICITY; NANOPARTICLES; XRD;
D O I：
10.1016/j.mssp.2013.03.017
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
TiO2 photocatalytic film, annealed at temperatures of 500 degrees C and 700 degrees C, was prepared on SiO2 pre-coated glass via sol-gel technique for photocatalytic purposes and effects of catalyst-type on its properties were investigated by an X-ray diffractometer (XRD), Scanning Electron Microscope, UV-vis spectrophotometer, and contact angle measurements. The XRD results showed that present phases depend upon catalyst used in the solution and phase transformation behaves in a temperature-dependent manner. For the layers derived from sols containing acidic catalysts, the anatase structure dominated and exhibited much better photocatalytic activity. The results indicated that the sample derived from sol comprises H2SO4 as catalyst, and exhibits anatase grains with the lowest size. This could be the reason for its better photocatalytic activity. Finally, samples derived from sol containing acidic catalysts showed superhydrophilicity and superior cleaning ability. (c) 2013 Elsevier Ltd. All rights reserved.
引用
收藏
页码：1063 / 1069
页数：7
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