Journal
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
Volume 656, Issue -, Pages -Publisher
ELSEVIER
DOI: 10.1016/j.colsurfa.2022.130284
Keywords
Poly(vinylidene fluoride); Vapor-induced phase separation; Porous membrane; Sulfonation dopamine; Oil-in-water separation
Categories
Ask authors/readers for more resources
Superoleophobic and anti-oil adhesion membranes were prepared using vapor-induced phase separation and sulfonated dopamine deposition. The resulting membranes showed excellent performance in removing emulsified toluene from water.
Superoleophobic and anti-oil adhesion behavior has been considered the central character of the materials for removing oil from wastewater. Herein, poly(vinylidene fluoride)/poly(N-isopropylacrylamide) (PVDF/PNIPAM) membranes were fabricated by vapor-induced phase separation (VIPS) and then further post-modified by deposition of sulfonated dopamine (SDA). The resulting membrane has a strong underwater superoleophobicity with an underwater toluene contact angle of 163 +/- 2 degrees and an ultralow adhesion force (1.9 +/- 0.02 mu N) between the surface and the oil. Therefore, it can efficiently remove emulsified toluene from water with a flux of 2211 +/- 80 L m- 2 h-1 bar- 1 and an oil rejection of 99.5 +/- 0.4%. This work offers a novel technique for the fabrication of porous membranes with excellent anti-oil fouling performance which will be practically used in the treatment of emulsified oils.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available