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Journal of Materials Science

, Volume 53, Issue 9, pp 6403–6413 | Cite as

Superhydrophobic–superoleophilic stainless steel meshes by spray-coating of a POSS hybrid acrylic polymer for oil–water separation

  • Danyi Guo
  • Kun Hou
  • Shouping Xu
  • Yingguang Lin
  • Li Li
  • Xiufang Wen
  • Pihui Pi
Chemical routes to materials

Abstract

Superhydrophobic–superoleophilic meshes with hierarchical structures were fabricated by spraying a POSS hybrid acrylic polymer on stainless steel mesh for oil–water separation in this paper. Fourier transform infrared spectroscopy, nuclear magnetic resonance (1H NMR), and thermogravimetric analyses were used to verify the chemical composition and thermostability of the POSS hybrid acrylic polymer, which was synthesized via a free radical solution polymerization. The obtained mesh was characterized by scanning electron microscopy, X-ray photoelectron spectroscopy, and optical contact angle meter to confirm the morphology, composition, and wettability of the film surface. The coated mesh, with a static water contact angle of 153° and a sliding angle of 4.5°, was applied to separate a series of oil–water mixtures, such as n-hexane, isooctane, petroleum ether, kerosene, and vegetable oil, with separation efficiency nearly 99%. In addition, the coated mesh still kept separation efficiency approximately 99% even after 25 separation cycles for n-hexane/water mixture. After 20 abrasion cycles, the water contact angle of the mesh remained 145°, and separation efficiency for n-hexane/water mixture is approximately 99%, indicating the coated mesh possessed good mechanical stability. The as-prepared mesh will be a promising material in oil–water separation, due to the simple, low-cost, and easily scalable fabrication method and the excellent separation performance in radical oil–water separation.

Notes

Acknowledgements

This work was supported by the National Natural Science Foundation of China (Grant No. 21676102 and No. 21376093), the Project of Guangzhou Science and Technology Plan (201607010172), the Project of Dongguan Science and Technology (201521510201), and the Project of Science and Technology of Guangdong Province (2015B010135009).

Compliance with ethical standards

Conflict of interest

The authors declare that they have no conflict of interest.

Supplementary material

10853_2017_1542_MOESM1_ESM.mpg (5.6 mb)
Supplementary material 1 (MPG 5698 kb)

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Copyright information

© Springer Science+Business Media, LLC 2018

Authors and Affiliations

  1. 1.School of Chemistry and Chemical EngineeringSouth China University of TechnologyGuangzhouChina
  2. 2.School of Environment and EnergySouth China University of TechnologyGuangzhouChina

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