Superhydrophobic-Superoleophilic SiO2/Polystyrene Porous Micro/nanofibers for Efficient Oil-Water Separation 


Vol. 20,  No. 10, pp. 2017-2024, Oct.  2019
10.1007/s12221-019-9040-7


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  Abstract

SiO2/polystyrene porous micro/nanofibers with superhydrophobic and superoleophilic properties were prepared by facile electrospinning method. The spindle-beads-on-string structured fibers were found to be more hydrophobic than those without the beads. The doping of nano-SiO2 endowed the fibers with porous structure, and thus further increased the water contact angle from 139 o to 153 o. Simultaneously, the oil contact angle of 0 o was obtained. The superhydrophobicsuperoleophilic micro/nanofibers could selectively absorb oil from water within eight seconds. The oil sorption process followed pseudo-first order kinetic model. The absorption mechanism was proved to be physical encapsulation by Fourier transform infrared technique. The maximum sorption capacity for highly viscous silicone oil was up to 122.7 g/g. It is higher than many recently reported values. The porous micro/nanofibers exhibit significant value in oil-water separation.

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  Cite this article

[IEEE Style]

Y. Ding, D. Xu, H. Shao, T. Cong, X. Hong, H. Zhao, "Superhydrophobic-Superoleophilic SiO2/Polystyrene Porous Micro/nanofibers for Efficient Oil-Water Separation," Fibers and Polymers, vol. 20, no. 10, pp. 2017-2024, 2019. DOI: 10.1007/s12221-019-9040-7.

[ACM Style]

Yadan Ding, Dan Xu, Hong Shao, Tie Cong, Xia Hong, and Huiying Zhao. 2019. Superhydrophobic-Superoleophilic SiO2/Polystyrene Porous Micro/nanofibers for Efficient Oil-Water Separation. Fibers and Polymers, 20, 10, (2019), 2017-2024. DOI: 10.1007/s12221-019-9040-7.

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