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ZnO nanorod array-coated mesh film for the separation of water and oil

Hong Li1, Yushan Li2 and Qinzhuang Liu1*

Author affiliations

1 School of Physics and Electronic Information, Huaibei Normal University, Huaibei 235000, People’s Republic of China

2 Department of Physics, Heze University, Heze 274015, People’s Republic of China

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Citation and License

Nanoscale Research Letters 2013, 8:183  doi:10.1186/1556-276X-8-183

Published: 20 April 2013


Dense and vertically aligned ZnO nanorod arrays with a large area have been fabricated successfully on the stainless steel mesh by a simple chemical vapor deposition method. The coated mesh exhibited both superoleophilic and superhydrophobic properties, even if it was not modified by low surface energy materials. The separation efficiencies were more than 97% in the filtration of water and oil. Besides, the wettability of the coated mesh was still stable after it was soaked in the corrosive solutions for 1 h. A detailed investigation showed that the coated mesh has the best superhydrophobic property when the stainless steel mesh pore size was about 75 μm.

Superhydrophobicity; Superhydrophilicity; ZnO nanorod arrays