Superhydrophobic and Superoleophilic Nanoparticle Film: Synthesis and Reversible Wettability Switching Behavior
2012
Zhang, Xia | Guo, Yonggang | Zhang, Pingyu | Wu, Zhishen | Zhang, Zhijun
The present work describes a one-step facile spray deposition process for the fabrication of superhydrophobic and superoleophilic nanoparticle film. The film shows fast response wettability transition between superhydrophobicity and hydrophilicity. The reversible superhydrophobicity to hydrophilicity switching can be easily carried out by adjusting the temperature. The film also demonstrates oil uptake ability and can selectively adsorb oil floating on water surface. Furthermore, the film surface shows the antifouling performance for organic solvents, which can self-remove the organic solvents layer and recover its superhydrophobic behavior. The advantage of the present approach is that the damaged film can be easily repaired by spraying again.
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