Towards enhanced performance thin-film composite membranes via surface plasma modification

Reis, Rackel, Dumée, Ludovic F, Tardy, Blaise L, Dagastine, Raymond, Orbell, John D, Schutz, Jurg A and Duke, Mikel C 2016, Towards enhanced performance thin-film composite membranes via surface plasma modification, Scientific reports, vol. 6, pp. 1-13, doi: 10.1038/srep29206.

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Title Towards enhanced performance thin-film composite membranes via surface plasma modification
Author(s) Reis, Rackel
Dumée, Ludovic FORCID iD for Dumée, Ludovic F
Tardy, Blaise L
Dagastine, Raymond
Orbell, John D
Schutz, Jurg A
Duke, Mikel C
Journal name Scientific reports
Volume number 6
Start page 1
End page 13
Publisher Nature Publishing Group
Place of publication London, Eng.
Publication date 2016-07-01
ISSN 2045-2322
Summary Advancing the design of thin-film composite membrane surfaces is one of the most promising pathways to deal with treating varying water qualities and increase their long-term stability and permeability. Although plasma technologies have been explored for surface modification of bulk micro and ultrafiltration membrane materials, the modification of thin film composite membranes is yet to be systematically investigated. Here, the performance of commercial thin-film composite desalination membranes has been significantly enhanced by rapid and facile, low pressure, argon plasma activation. Pressure driven water desalination tests showed that at low power density, flux was improved by 22% without compromising salt rejection. Various plasma durations and excitation powers have been systematically evaluated to assess the impact of plasma glow reactions on the physico-chemical properties of these materials associated with permeability. With increasing power density, plasma treatment enhanced the hydrophilicity of the surfaces, where water contact angles decreasing by 70% were strongly correlated with increased negative charge and smooth uniform surface morphology. These results highlight a versatile chemical modification technique for post-treatment of commercial membrane products that provides uniform morphology and chemically altered surface properties.
Language eng
DOI 10.1038/srep29206
Field of Research 090404 Membrane and Separation Technologies
Socio Economic Objective 970103 Expanding Knowledge in the Chemical Sciences
HERDC Research category C1 Refereed article in a scholarly journal
ERA Research output type C Journal article
Copyright notice ©2016, Nature Publishing Group
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Document type: Journal Article
Collection: Institute for Frontier Materials
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