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Antifouling and antibacterial behavior of polyethersulfone membrane incorporating polyaniline@silver nanocomposites

Abstract

Nanocomposites with antibacterial property were synthesized through in situ reduction of silver ammonia aqueous solution (Ag(NH3)2OH) on polydopamine coated polyaniline (PANI) nanofibers. The obtained PANI@Ag nanocomposites were incorporated into polyethersulfone (PES) to fabricate composite ultrafiltration (UF) membranes by phase inversion process. As characterized by FTIR, XRD and TEM analysis, Ag nanoparticles were uniformly assembled onto PANI nanofibers, which favored to the silver immobilization in the membrane matrix. The stability of silver in the composite membrane was further determined, with a slow silver release observed during static immersion and dynamic filtration tests. Compared with pristine PES membrane, the PES/PANI@Ag membrane showed improved hydrophilicity, water flux and antifouling property. Moreover, PES/PANI@Ag membrane exhibited excellent anti-bacterial properties and anti-biofouling performance against bacteria Escherichia coli and Bacillus subtilis.

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Publication details

The article was received on 25 Nov 2016, accepted on 06 Apr 2017 and first published on 18 Apr 2017


Article type: Paper
DOI: 10.1039/C6EW00332J
Citation: Environ. Sci.: Water Res. Technol., 2017, Accepted Manuscript
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    Antifouling and antibacterial behavior of polyethersulfone membrane incorporating polyaniline@silver nanocomposites

    S. Zhao, L. huang, T. Tong, W. Zhang, Z. Wang, J. Wang and S. Wang, Environ. Sci.: Water Res. Technol., 2017, Accepted Manuscript , DOI: 10.1039/C6EW00332J

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