期刊
APPLIED SURFACE SCIENCE
卷 458, 期 -, 页码 917-923出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.apsusc.2018.07.172
关键词
Self-cleaning; Superhydrophilic; Contact angle; Photocatalytic TiO2; Wetting
类别
资金
- Sakura Exchange Program in Science, Japan Science and Technology Agency (JST), Japan
- Department of Science and Technology (DST), Government of India under the DST-INSPIRE Faculty Scheme [DST/INSPIRE/04/2015/000281]
Photocatalytic TiO2/SiO2 coatings with excellent superhydrophilic wettability were prepared on light-weight polycarbonate substrates for self-cleaning applications. The effect of distinct SiO2 concentrations (0-40%) in TiO2 on the morphology, wettability, UV-Vis transmittance, haze, and durability of the coatings was studied in detail. TiO2/SiO2 coatings prepared with 20% silica in TiO2 showed superhydrophilic wetting properties with a smooth and uniform morphology with more than 85% transmittance. The lower haze value of TiO2/SiO2 coatings confirms their clear optical appearance. A low-friction layer of fluoroalkylsilane was applied to the coatings to improve their mechanical durability. In addition, the hydrophobic-hydrophilic patterns of different areas were prepared to check their effect on the haze and wetting properties.
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