Multifunctional nanocomposite hollow fiber membranes by solvent transfer induced phase separation

Martin F. Haase (), Harim Jeon, Noah Hough, Jong Hak Kim, Kathleen J. Stebe () and Daeyeon Lee ()
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Martin F. Haase: Rowan University, Henry M. Rowan College of Engineering
Harim Jeon: Department of Chemical and Biomolecular Engineering, University of Pennsylvania
Noah Hough: Rowan University, Henry M. Rowan College of Engineering
Jong Hak Kim: Department of Chemical and Biomolecular Engineering, Yonsei University
Kathleen J. Stebe: Department of Chemical and Biomolecular Engineering, University of Pennsylvania
Daeyeon Lee: Department of Chemical and Biomolecular Engineering, University of Pennsylvania

Nature Communications, 2017, vol. 8, issue 1, 1-7

Abstract: Abstract The decoration of porous membranes with a dense layer of nanoparticles imparts useful functionality and can enhance membrane separation and anti-fouling properties. However, manufacturing of nanoparticle-coated membranes requires multiple steps and tedious processing. Here, we introduce a facile single-step method in which bicontinuous interfacially jammed emulsions are used to form nanoparticle-functionalized hollow fiber membranes. The resulting nanocomposite membranes prepared via solvent transfer-induced phase separation and photopolymerization have exceptionally high nanoparticle loadings (up to 50 wt% silica nanoparticles) and feature densely packed nanoparticles uniformly distributed over the entire membrane surfaces. These structurally well-defined, asymmetric membranes facilitate control over membrane flux and selectivity, enable the formation of stimuli responsive hydrogel nanocomposite membranes, and can be easily modified to introduce antifouling features. This approach forms a foundation for the formation of advanced nanocomposite membranes comprising diverse building blocks with potential applications in water treatment, industrial separations and as catalytic membrane reactors.

Date: 2017
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DOI: 10.1038/s41467-017-01409-3

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