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Super-hydrophobic property of nano-sized cupric oxide films |
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| Authors: | Xianli Liu Zhihui Zhang |
| Affiliation: | a Key Laboratory of Bionic Engineering, College of Biology and Agriculture Engineering, Jin University, Nanling Campus, Changchun 130025, China b Key Laboratory of Automobile Materials, College of Materials Science and Engineering, Jilin University, Nanling Campus, Changchun 130025, China c College of Machinic and Electronic Engineering, Changchun University of Science and Technology, Changchun 13022, China |
| Abstract: | Nano-sized cupric oxide (CuO) films with biomimetic super-hydrophobic surfaces were fabricated by isothermally oxidizing nano-sized Cu films prepared by electroless plating on smooth glass substrate following modification with octadecanethiol (CH3-(CH2)17-SH). The microstructure characterization showed that CuO films with 54 nm thickness have a dual-scale structure consisting of the 150-200 nm agglomerates composed of the 30-50 nm granules, a similar structure to lotus-leaf. The measurement of wettability showed that CuO films modified with octadecanethiol exhibit a super-hydrophobic property with a water contact angle of ~ 154°. The mechanism leading to the super-hydrophobic property of CuO films was also analyzed based on the results of X-ray photoelectron spectroscopy (XPS). |
| Keywords: | Cupric oxide Super-hydrophobic Water contact angle Micro- and nano-sized structure Electroless plating |
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