Journal
NANOTECHNOLOGY
Volume 22, Issue 26, Pages -Publisher
IOP PUBLISHING LTD
DOI: 10.1088/0957-4484/22/26/265708
Keywords
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Funding
- National Natural Science Foundation of China [20821004, 20976008]
- National '863' Program of China [2009AA033301]
- NSERC of Canada
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Visible light transparent, UV-shielding and superhydrophobic nanostructured coatings have been successfully fabricated through a facile layer-by-layer deposition of TiO2 and SiO2 nanoparticles. The coatings are composed of an underlying UV-shielding TiO2 layer and a top fully covered protective SiO2 layer. The resulting coatings can block 100% of UVB and UVC and almost 85% of UVA. The fabricated surfaces have contact angles exceeding 165 degrees after coating with organic PTES (1H, 1H, 2H, 2H-perfluorooctyltriethoxysilane) molecules. The transparent superhydrophobic surfaces exhibit extremely strong UV stability. All coatings retain the initial UV-shielding and superhydrophobic properties even after exposure to 275 nm UV light with a light intensity of 75 mW cm(-2) for 12 h.
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