Fabrication of Superhydrophobic-Superoleophilic Copper Mesh and Its Application in Oil-Water Separation

doi:10.11944/j.issn.1000-0518.2017.04.160249

Chinese Journal of Applied Chemistry ›› 2017, Vol. 34 ›› Issue (4): 472-480.DOI: 10.11944/j.issn.1000-0518.2017.04.160249

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Fabrication of Superhydrophobic-Superoleophilic Copper Mesh and Its Application in Oil-Water Separation

SHI Yanlong^a^b^*(),WANG Zhidan^a,FANG Yun^a,LYU Tao^a,FENG Xiaojuan^a,FENG Lei^a,YANG Wu^b

^aKey Laboratory of Hexi Corridor Resources Utilization of Gansu Universities,College ofChemistry and Chemical Engineering,Hexi University,Zhangye,Gansu 734000,China
^bKey Laboratory of Eco-Environmental Related Polymer Materials of Ministry of Education,College of Chemistry and Chemical Engineering,Northwest Normal University,Lanzhou 730070,China

Accepted:2016-09-29 Published:2017-03-31 Online:2017-03-31
Contact: SHI Yanlong
Supported by:
Supported by the National Natural Science Foundation of China(No.20873101), the Scientific Research Foundation of the Higher Education Institutions of Gansu Province(No.2016B-091), the General Program of the Key Laboratory of Hexi Corridor Resources Utilization of Gansu Universities(No.XZ1603), 2015 National Training Program of Innovation and Entrepreneurship for Undergraduates(No.201510740004), 2016 Provincial Training Program of Innovation and Entrepreneurship for Undergraduates(No.201610740004), the Sixth Scientific Innovation for College Students of Hexi University(No.001, No.117)

Abstract

Abstract:

An organic-inorganic composite film with superhydrophobicity and superoleophobicity was constructed on copper mesh by facile dip-coating. The water contact angle on the film is 152° while the oil contact angle is less than 10°. It is confirmed that the cooperative effect of the hierarchical structures composed by linear low density polyethylene(LLDPE) and SiO₂ nanoballs, and the nature of the LLPDE contribute to the wettability. The film with unique wettability exhibits self-cleaning and good anti-corrosion properties, and can be employed to effectively separate oil from water. Compared with traditional techniques for constructing superhydrophobic-superoleophilic film, the method adopted here is simple, low cost, fluorine-free, and may be applied in practice.

Key words: superhydrophobicity, superoleophobicity, linear low density polyethylene, SiO₂, oil-water separation

SHI Yanlong, WANG Zhidan, FANG Yun, LYU Tao, FENG Xiaojuan, FENG Lei, YANG Wu. Fabrication of Superhydrophobic-Superoleophilic Copper Mesh and Its Application in Oil-Water Separation[J]. Chinese Journal of Applied Chemistry, 2017, 34(4): 472-480.

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Fabrication of Superhydrophobic-Superoleophilic Copper Mesh and Its Application in Oil-Water Separation

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