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Facile Fabrication of Superhydrophobic Copper-Foam and Electrospinning Polystyrene Fiber for Combinational Oil-Water Separation

文献类型： 外文期刊

作者： Zhang, Yu-Ping 1 ; Yang, Jing-Hua 1 ; Li, Ling-Li 1 ; Cui, Cheng-Xing 1 ; Li, Ying 1 ; Liu, Shan-Qin 1 ; Zhou, Xiao-Ma 1 ;

作者机构： 1.Henan Inst Sci & Technol, Xinxiang 453000, Peoples R China

2.Hunan Acad Agr Sci, Changsha 410128, Hunan, Peoples R China

3.Zhengzhou Univ, Coll Chem & Mol Engn, Zhengzhou 450001, Henan, Peoples R China

关键词： copper foam; superhydrophobicity; polystyrene; electrospinning; oil-water separation

期刊名称：POLYMERS （ 影响因子：4.329； 五年影响因子：4.493 ）

ISSN： 2073-4360

年卷期： 2019 年 11 卷 1 期

页码：

收录情况： SCI

摘要： Membrane-based metal substrates with special surface wettability have been applied widely for oil/water separation. In this work, a series of copper foams with superhydrophobicity and superoleophilicity were chemically etched using 10 mg mL(-1) FeCl3/HCl solution with consequent ultrasonication, followed by the subsequent modification of four sulfhydryl compounds. A water contact angle of 158 degrees and a sliding angle lower than 5 degrees were achieved for the copper foam modified using 10 mM n-octadecanethiol solution in ethanol. In addition, the interaction mechanism was initially investigated, indicating the coordination between copper atoms with vacant orbital and sulfur atoms with lone pair electrons. In addition, the polymeric fibers were electrospun through the dissolution of polystyrene in a good solvent of chlorobenzene, and a nonsolvent of dimethyl sulfoxide. Oil absorption and collection over the water surface were carried out by the miniature boat made out of copper foam, a string bag of as-spun PS fibers with high oil absorption capacity, or the porous boat embedded with the as-spun fibers, respectively. The findings might provide a simple and practical combinational method for the solution of oil spill.

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