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 language | English |
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Pages (from-to) | 300-307 |
Number of pages | 8 |
Journal | Journal of the Taiwan Institute of Chemical Engineers |
Volume | 95 |
DOIs | |
State | Published - Feb 2019 |
Externally published | Yes |
Keywords
- High flux
- Oil/water separation
- PVDF membrane
- Superhydrophilic
- Underwater superoleophobic