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Surface Modification of Water Purification Membranes
Author(s) -
Miller Daniel J.,
Dreyer Daniel R.,
Bielawski Christopher W.,
Paul Donald R.,
Freeman Benny D.
Publication year - 2017
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.201601509
Subject(s) - membrane , surface modification , fouling , filtration (mathematics) , membrane fouling , context (archaeology) , coating , water treatment , chemical engineering , materials science , biofouling , nanotechnology , chemistry , environmental science , environmental engineering , engineering , mathematics , paleontology , biochemistry , statistics , biology
Polymeric membranes are an energy‐efficient means of purifying water, but they suffer from fouling during filtration. Modification of the membrane surface is one route to mitigating membrane fouling, as it helps to maintain high levels of water productivity. Here, a series of common techniques for modification of the membrane surface are reviewed, including surface coating, grafting, and various treatment techniques such as chemical treatment, UV irradiation, and plasma treatment. Historical background on membrane development and surface modification is also provided. Finally, polydopamine, an emerging material that can be easily deposited onto a wide variety of substrates, is discussed within the context of membrane modification. A brief summary of the chemistry of polydopamine, particularly as it may pertain to membrane development, is also described.