Superhydrophilicity to superhydrophobicity transition of CuO nanowire films

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题名:	Superhydrophilicity to superhydrophobicity transition of CuO nanowire films
作者:	Chang,FM;Cheng,SL;Hong,SJ;Sheng,YJ;Tsao,HK
贡献者:	化學工程與材料工程學系
关键词:	THIN-FILMS;COPPER;SURFACES
日期:	2010
上传时间:	2012-03-27 16:26:06 (UTC+8)
出版者:	國立中央大學
摘要:	The surface of CuO is known for its hydrophilicity and exhibits superhydrophilic nature as nanowires are present. When exposed in the air at room temperature or treated by low temperature annealing, however, transition from superhydrophilicity to superhydrophobicity of the CuO nanowire films are observed. Since the chemical structure of the films after treatment remains the same as CuO according to x-ray photoelectron spectroscopy spectra, the superhydrophobicity may be attributed to partial deoxidation of the upmost layer of CuO surfaces into Cu(2)O-like hydrophobic surfaces. Nonetheless, superhydrophilicity is recovered if the superhydrophobic CuO film is subject to high temperature annealing.
關聯:	APPLIED PHYSICS LETTERS
显示于类别:	[化學工程與材料工程學系 ] 期刊論文

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