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Membranes 2017, 7(1), 13; doi:10.3390/membranes7010013

Membranes with Surface-Enhanced Antifouling Properties for Water Purification

Department of Chemical and Biological Engineering, University at Buffalo, The State University of New York, Buffalo, NY 14260, USA
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Author to whom correspondence should be addressed.
Academic Editor: Jega Veeriah Jegatheesan
Received: 7 January 2017 / Revised: 7 February 2017 / Accepted: 27 February 2017 / Published: 5 March 2017
(This article belongs to the Special Issue Feature Papers)
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Abstract

Membrane technology has emerged as an attractive approach for water purification, while mitigation of fouling is key to lower membrane operating costs. This article reviews various materials with antifouling properties that can be coated or grafted onto the membrane surface to improve the antifouling properties of the membranes and thus, retain high water permeance. These materials can be separated into three categories, hydrophilic materials, such as poly(ethylene glycol), polydopamine and zwitterions, hydrophobic materials, such as fluoropolymers, and amphiphilic materials. The states of water in these materials and the mechanisms for the antifouling properties are discussed. The corresponding approaches to coat or graft these materials on the membrane surface are reviewed, and the materials with promising performance are highlighted. View Full-Text
Keywords: membrane fouling; surface modification; antifouling materials; state of water; poly(ethylene glycol); dopamine; zwitterions; fluoropolymers membrane fouling; surface modification; antifouling materials; state of water; poly(ethylene glycol); dopamine; zwitterions; fluoropolymers
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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Shahkaramipour, N.; Tran, T.N.; Ramanan, S.; Lin, H. Membranes with Surface-Enhanced Antifouling Properties for Water Purification. Membranes 2017, 7, 13.

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