title: Membranes with Surface-Enhanced Antifouling Properties for Water Purification.
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.
authors.affiliation: Department of Chemical and Biological Engineering, University at Buffalo, The State University of New York, Buffalo, NY 14260, USA. nimashah@buffalo.edu.
authors.forename: Nima
authors.initials: N
authors.lastname: Shahkaramipour
authors.affiliation: Department of Chemical and Biological Engineering, University at Buffalo, The State University of New York, Buffalo, NY 14260, USA. ttran7@buffalo.edu.
authors.forename: Thien N
authors.initials: TN
authors.lastname: Tran
authors.affiliation: Department of Chemical and Biological Engineering, University at Buffalo, The State University of New York, Buffalo, NY 14260, USA. sramanan@buffalo.edu.
authors.forename: Sankara
authors.initials: S
authors.lastname: Ramanan
authors.affiliation: Department of Chemical and Biological Engineering, University at Buffalo, The State University of New York, Buffalo, NY 14260, USA. haiqingl@buffalo.edu.
authors.forename: Haiqing
authors.initials: H
authors.lastname: Lin
keywords: antifouling materials; dopamine; fluoropolymers; membrane fouling; poly(ethylene glycol); state of water; surface modification; zwitterions