Fabrication of acrylamide decorated superhydrophilic and underwater superoleophobic poly(vinylidene fluoride) membranes for oil/water emulsion separation

Siwei Liu, Zhiping Zhou, Shi Zhou, Jiuyun Cui, Qingqing Wang, Yufeng Zhang, Jihui Lang, Yongsheng Yan

Research output: Contribution to journalArticlepeer-review

29 Scopus citations

Abstract

Here we have successfully fabricated the superhydrophilic and underwater superoleophobic PVDF/Al2O3/PAM membranes byconstructed “needle-shaped” PAM on the PVDF/Al2O3 hybrid membranes surface through ATRP technology. The modified membranes were characterized by the Fourier-transform infrared (FT-IR), X-ray diffraction (XRD) and X-ray photoelectron spectra (XPS) that the AIP has been hydrolyzed to Al2O3 and AM has successfully polymerized on the membrane surface. When the PVDF/Al2O3/PAM membranes were applied in oil/water emulsion separation, the separation efficiencies were more than 99.1% and the maximum flux of the emulsion was 5874L/ m/2/h/bar. In the anti-fouling performance experiment, the flux recovery ration (FRR) of the PVDF/Al2O3/PAM membranes could still reach 83.46% after eight cycles. Therefore, the PVDF/Al2O3/PAM membranes have high separation efficiency and high flux performance for separating oil-water emulsions, and steadily anti-oil performance is suitable for practical applications.

Original languageEnglish
Pages (from-to)300-307
Number of pages8
JournalJournal of the Taiwan Institute of Chemical Engineers
Volume95
DOIs
StatePublished - Feb 2019
Externally publishedYes

Keywords

  • High flux
  • Oil/water separation
  • PVDF membrane
  • Superhydrophilic
  • Underwater superoleophobic

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