Super-hydrophilic Poly(arylene ether nitrile) Nanofibrous Composite Membrane: Facile Strategy and Oil-water Emulsions Separation

In this study, we developed the super-hydrophilic nanofibrous composite membrane for the highly efficient separation of various oil-in-water emulsions. To achieve this target, the acidified carbon nanotubes (AC-CNTs) intercalated graphene oxide (GO) were assembled onto electrospun poly(arylene ether...

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Bibliographic Details
Published in:Russian Journal of Physical Chemistry A 2021-08, Vol.95 (8), p.1682-1692
Main Authors: Zhou, Mi, Zhan, Yingqing, Wen, Xin, He, Shuangjiang, Zhang, Jieming
Format: Article
Language:English
Subjects:
Acidification
Carbon nanotubes
Chemistry
Chemistry and Materials Science
Contact angle
Dopamine
Emulsions
Graphene
Hydrophilicity
Membranes
Physical Chemistry
Physical Chemistry of Nanoclusters and Nanomaterials
Separation
Structural hierarchy
Wastewater treatment
Wetting
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Summary:In this study, we developed the super-hydrophilic nanofibrous composite membrane for the highly efficient separation of various oil-in-water emulsions. To achieve this target, the acidified carbon nanotubes (AC-CNTs) intercalated graphene oxide (GO) were assembled onto electrospun poly(arylene ether nitrile) (PEN) nanofibrous mats via simple vacuum-assisted filtration. As obtained membrane was further modified by dopamine and KH550, thus enhancing the hydrophilicity and micro-/nano- rough structure of membrane surface. As a result, the constructed composite membrane exhibited super-hydrophilic property (water contact angle: ~0°) and high oil–water separation performance for various oil-in-water emulsions (separation flux: 191.7–384.8 L m –2 h –1 and rejection ratio: >94%). In addition, the hierarchical intercalation structure and super-wetting interface endowed the membrane with good anti-fouling performance. Therefore, this work provides an alternative way to construct super-hydrophilic nanofibrous composite membrane for the oily wastewater treatment.
ISSN:0036-0244
1531-863X
DOI:10.1134/S0036024421080331