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Reversible Surface Wettability Conversion of ZnO Film

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Abstract:

The ZnO films were fabricated by chemical oxidation of metallic Zn in a 5% N, N-dimethyl- formamide (DMF) aqueous solution at 95°C for 24h. After modified with octadecyltrichlorosilane (OTS), a superhydrophobic ZnO film was obtained. The superhydrophobic film turned into a superhydrophilic one after UV irradiation, which can be recovered through being placed in the dark.

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High-Performance Ceramics VI View Preview

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Periodical:

Key Engineering Materials (Volumes 434-435)

Pages:

420-422

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.434-435.420

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Online since:

March 2010

Authors:

Hong Qin Liu, Shi Xiang Lu, Wen Guo Xu, Wei Pan

Keywords:

Contact Angle (CA), Wettability, ZnO Film

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© 2010 Trans Tech Publications Ltd. All Rights Reserved

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[20] [40] [60] [80] 100 120 140 Contact angle Time (min) Fig. 4 Time dependence of water CAs of surface of modified ZnO film under UV irradiation.

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[20] [40] [60] [80] 100 120 140 Contact angle Time (min) Fig. 4 Time dependence of water CAs of surface of modified ZnO film under UV irradiation.

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