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Issue 14, 2018
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Facile fabrication of hydrogel coated membrane for controllable and selective oil-in-water emulsion separation

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Abstract

The facile fabrication of a hydrogel-networks coated membrane for efficient oil-in-water emulsion separation was successfully achieved through the photo-initiated free radical polymerization of 2-acrylamido-2-methyl-1-propanesulfonic acid (AMPS). Due to the combination of the special wettability of the PAMPS hydrogel with the microscale multi-porous structure of the substrate, such a membrane is able to achieve the separation of sundry surfactants stabilized oil-in-water emulsions with high separation efficiency, large permeation flux and excellent stability. In particular, the PAMPS hydrogel coated membrane exhibits selective separation for cationic and nonionic types of surfactants stabilized emulsions via hydrogen bond interactions. The fabrication protocol is facile, cost-efficient and environmentally friendly, which can be scaled up to facilitate its practicability in sewage remediation.

Graphical abstract: Facile fabrication of hydrogel coated membrane for controllable and selective oil-in-water emulsion separation

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Publication details

The article was received on 19 Jan 2018, accepted on 06 Mar 2018 and first published on 07 Mar 2018


Article type: Paper
DOI: 10.1039/C8SM00139A
Citation: Soft Matter, 2018,14, 2649-2654
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    Facile fabrication of hydrogel coated membrane for controllable and selective oil-in-water emulsion separation

    Q. Zhang, N. Liu, Y. Wei and L. Feng, Soft Matter, 2018, 14, 2649
    DOI: 10.1039/C8SM00139A

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