Super-hydrophobic CuO Nanoflowers by Controlled Surface Oxidation on Copper

doi:10.3724/SP.J.1077.2006.00747

Abstract

Abstract: A CuO nanoflower film was fabricated on copper by controlled surface oxidation in KOH aqueous solutions with an oxidant K₂S₂O₈ and subsequent heat treatment in air. Results show that the nanoflower is formed by self-assembly of tens of CuO nanosheets. The nanosheet is about 2μm in length, 120nm in width, and 12nm in thickness. After fluorination treating, the nanoflower film exhibits super-hydrophobic properties, with a water contact angle of about 158°. The possible mechanism was proposed on the growth of the CuO nanoflowers. Also, the wettability of the CuO films was discussed on the basis of Cassie theories.

Key words: super-hydrophobic, CuO, nanoflowers, wettability

CLC Number:

TB383
O647

QIAN Bai-Tai,SHEN Zi-Qiu. Super-hydrophobic CuO Nanoflowers by Controlled Surface Oxidation on Copper[J]. Journal of Inorganic Materials, DOI: 10.3724/SP.J.1077.2006.00747.

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Super-hydrophobic CuO Nanoflowers by Controlled Surface Oxidation on Copper

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