Silica-Modified Electrospun Membrane with Underwater Superoleophobicity for Effective Gravity-driven Oil/Water Separation 


Vol. 23,  No. 7, pp. 1906-1914, Jul.  2022
10.1007/s12221-022-4039-x


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  Abstract

Superhydrophilic and underwater superoleophobic membrane materials have been widely studied owing to their excellent separation efficiency. However, the oil-fouling problem is a major drawback limiting their practical oil/water separation applications. Herein, a silica-enhanced functionalized poly(styrene-alt-maleic anhydride)/fluorocarbon surfactant nanofibrous composite membrane (f-PSMA/FS/SiO2) with underwater superoleophobicity was fabricated by the electrospinning method. The uniformly dispersed silica nanoparticles not only increased the roughness of the as-prepared composite membrane but also substantially improved the underwater superoleophobicity. Therefore, the as-prepared composite membrane showed excellent underwater anti-oil-fouling performance, thus preventing the decrease in the separation efficiency and flux caused by membrane fouling during oil/water separation. Throughout 60 separation cycles solely driven by gravity, the separation efficiencies were above 99.27 %, and the flux remained higher than 3743 L m-2 h-1. More importantly, the as-prepared composite membrane maintained exceptional underwater superoleophobicity in a harsh environment (30 wt% NaCl for 12 h, pH 1 (HCl) for 12 h, oven temperature at 90

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  Cite this article

[IEEE Style]

Y. Guo, M. Li, X. Wen, X. Guo, T. Zhang, "Silica-Modified Electrospun Membrane with Underwater Superoleophobicity for Effective Gravity-driven Oil/Water Separation," Fibers and Polymers, vol. 23, no. 7, pp. 1906-1914, 2022. DOI: 10.1007/s12221-022-4039-x.

[ACM Style]

Yani Guo, Ming Li, Xuan Wen, Xiaohang Guo, and Tiantian Zhang. 2022. Silica-Modified Electrospun Membrane with Underwater Superoleophobicity for Effective Gravity-driven Oil/Water Separation. Fibers and Polymers, 23, 7, (2022), 1906-1914. DOI: 10.1007/s12221-022-4039-x.

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pISSN : 1229 - 9197
eISSN : 1875 - 0052

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