S. Liu
Biogenic silver nanocomposite TFC nanofiltration membrane with antifouling properties
Liu, S.; Zhang, M.; Fang, F.; Cui, L.; Wu, J.J.; Field, R.; Zhang, K.
Authors
Abstract
Biofouling is still a major obstacle hindering wider application of thin-film composite (TFC) nanofiltration membranes in the water industry. One of the practical strategies to reduce biofouling is to develop novel antibiofouling membrane materials. Well-dispersed biogenic silver nanoparticles with a diameter of ~6 nm (Bio-Ag0-6) were first immobilized in the selective layer of TFC nanofiltration membranes. Different dosages of Bio-Ag0-6 were added in the aqueous solution during the interfacial polymerization of tetraethylenepentamine and 1,3,5-benzenetricarbonyl trichloride (TMC). Improved properties of Bio-Ag0-6 /TFC membranes were systematically investigated. When the concentration of Bio-Ag0-6 increased from 0 to 0.05 wt.% in aqueous solution, the water flux of TFC membranes increased from 7.31 to 13.76 Lm−2 h−1 while maintaining the rejection of Na2SO4 at a relatively high level. The addition of Bio-Ag0-6 also enhanced the hydrophilicity of Bio-Ag0-6/TFC membranes in comparison with the bare TFC membranes. All Bio-Ag0-6/TFC membranes exhibited an obvious antibacterial ability to inhibit the growth of Pseudomonas aeruginosa. Moreover, the Bio-Ag0-6/TFC membranes showed the property of a low silver leaching rate in both the static immersion and the filtration systems. It demonstrated that the embedded Bio-Ag0-6 in TFC membrane via interfacial polymerization improved the performance of the TFC nanofiltration membrane.
Journal Article Type | Article |
---|---|
Acceptance Date | Mar 29, 2015 |
Online Publication Date | May 28, 2015 |
Publication Date | May 1, 2016 |
Deposit Date | Feb 3, 2016 |
Publicly Available Date | May 28, 2016 |
Journal | Desalination and Water Treatment |
Print ISSN | 1944-3994 |
Electronic ISSN | 1944-3986 |
Publisher | Balaban Publishers – Desalination Publications |
Peer Reviewed | Peer Reviewed |
Volume | 57 |
Issue | 23 |
Pages | 10560-10571 |
DOI | https://doi.org/10.1080/19443994.2015.1040854 |
Public URL | https://durham-repository.worktribe.com/output/1389714 |
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Accepted Journal Article
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Copyright Statement
This is an Accepted Manuscript of an article published by Taylor & Francis Group in Desalination and Water Treatment on 28/05/2015, available online at: http://www.tandfonline.com/10.1080/19443994.2015.1040854.
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