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    Development of composite membranes with irregular rod-like structure via atom transfer radical polymerization for efficient oil-water emulsion separation

    Year: 2019

    Journal: J. Colloid Interface Sci., Volume 533, JAN 1, page 278–286

    Authors: Cui, Jiuyun; Xie, Atian; Zhou, Shi; Liu, Siwei; Wang, Qianqian; Wu, Yilin; Meng, Minjia; Lang, Jihui; Zhou, Zhiping; Yan, Yongsheng

    Organizations: National Natural Science Foundation of China [21776110, U1507118, 21676127]; Natural Science Foundation of Jiangsu Province [BK20151350, BK20161367, BK20171315]; China Postdoctoral Science Foundation [2014M561588, 1501067C, 170103B]

    Keywords: Composite membrane; ATRP; Flux recovery; Oil-water emulsions separation; Acrylamide

    Development of superhydrophilic, stable and cost-effective composite membranes for efficient oil-water emulsion separation is highly desirable. Herein, an irregular rod-like composite membrane was prepared through 3-aminopropyltriethoxysilane (APTES) modification, followed by acrylamide polymerization with atomic transfer radical polymerization (ATRP). The as-prepared membrane exhibits superhydrophilicity/underwater superoleophobicity due to its irregular rod-like structure and poresinduced capillary actions. The composite membrane has demonstrated sufficient stability in acidic, alkaline and salty environments due to the polymerization of acrylamide. Moreover, the as-prepared composite membrane has effectively separated various oil-water emulsions and demonstrated high permeation and superior flux recovery. The present work demonstrates that the ATRP-assisted composite membrane is a promising material in a wide range of applications, such as industrial wastewater recovery and drinking water treatment. (C) 2018 Elsevier Inc. All rights reserved.
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