Title of article
Tailoring the wettability of nanocrystalline TiO2 films
Author/Authors
Qiyu Liang، نويسنده , , Yan Chen، نويسنده , , Yuzun Fan، نويسنده , , Yong Hu، نويسنده , , Yuedong Wu، نويسنده , , Ziqiang Zhao، نويسنده , , Qingbo Meng، نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 2012
Pages
4
From page
2266
To page
2269
Abstract
The water contact angle (WCA) of nanocrystalline TiO2 films was adjusted by fluoroalkylsilane (FAS) modification and photocatalytic lithography. FAS modification made the surface hydrophobic with the WCA up to ∼156°, while ultraviolet (UV) irradiation changed surface to hydrophilic with the WCA down to ∼0°. Both the hydrophobicity and hydrophilicity were enhanced by surface roughness. The wettability can be tailored by varying the concentration of FAS solution and soaking time, as well as the UV light intensity and irradiation time. Additionally, with the help of photomasks, hydrophobic–hydrophilic micropatterns can be fabricated and manifested via area-selective deposition of polystyrene particles.
Keywords
Nanocrystalline TiO2 films , Photocatalytic lithography , Wettability control , Superhydrophobic , Micropattern , Superhydrophilic
Journal title
Applied Surface Science
Serial Year
2012
Journal title
Applied Surface Science
Record number
1004441
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