Porous superhydrophobic and superoleophilic surfaces prepared by template assisted chemical vapor deposition

Separating oil from water is an urgent problem owing to the increase of oily wastewater and oil spills. We propose an effective method to fabricate porous silica coated copper mesh (PSCCM) using template assisted chemical vapor deposition (CVD) for oil/water separation. After modification with hexam...

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Bibliographic Details
Published in:Surface & coatings technology 2017-04, Vol.315, p.385-390
Main Authors: Zhang, Feng, Shi, Zhenwu, Chen, Linsen, Jiang, Yingjie, Xu, Chengyun, Wu, Zhuhui, Wang, Yanyan, Peng, Changsi
Format: Article
Language:English
Subjects:
Chemical vapor deposition
Oil/water separation
Porous silica
Superhydrophobic
Superoleophilic
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Summary:Separating oil from water is an urgent problem owing to the increase of oily wastewater and oil spills. We propose an effective method to fabricate porous silica coated copper mesh (PSCCM) using template assisted chemical vapor deposition (CVD) for oil/water separation. After modification with hexamethyldisilazane (HMDS), the PSCCM exhibits superhydrophobic/superoleophilic property with high separation efficiency and selectivity. And also it is of a good mechanical robustness, high chemical resistance, thermal stability, and high recyclability. •We prepare porous silica coated copper mesh (PSCCM) via chemical vapor deposition.•The PSCCM can separate various oil/water mixtures with separation efficiencies above 98%.•The as-prepared PSCCM shows good mechanical robustness, chemical corrosion resistance and thermal stability.•The PSCCM can keep high separation efficiency after 300cycles of separation.
ISSN:0257-8972
1879-3347
DOI:10.1016/j.surfcoat.2017.02.058