期刊
JOURNAL OF COLLOID AND INTERFACE SCIENCE
卷 340, 期 2, 页码 237-242出版社
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.jcis.2009.08.029
关键词
Superhydrophobicity; Titanium dioxide; Contact angle hysteresis; Chemical vapor deposition; Water repellency
资金
- National Science Council of the Republic of China [NSC 97-2221-E-155-031-MY2]
This Study demonstrates the fabrication of a stable superhydrophobic Surface with low contact angle hysteresis (CAH) using all arrangement of nanoscale TiO(2) spheres. The control of precursor quantity is selected as the key factor in determining surface toughness that significantly intensifies water contact angle (CA) of TiO(2) films. After surface fluorination treatment, the anatase-type crystalline surfaces exhibit good water repellency (CA similar to 166.1 degrees), low CAH (similar to 6 degrees), and superhydrophobic stability (>60 min). Enhanced water repellency is attributed to the fact that the higher density of TiO(2) spheres results in more tortuous three-phase contact line, leading to the self-cleaning effect. Such a unique textured Surface imparts many promising potentials for engineering and the development of optics devices with robust superhydrophobic materials. (C) 2009 Elsevier Inc. All rights reserved
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