Aminated polyethersulfone-silver nanoparticles (AgNPs-APES) composite membranes with controlled silver ion release for antibacterial and water treatment applications
- Authors
- Haider, M. Salman; Shao, Godlisten N.; Imran, S. M.; Park, Sung Soo; Abbas, Nadir; Tahir, M. Suleman; Hussain, Manwar; Bae, Wookeun; Kim, Hee Taik
- Issue Date
- May-2016
- Publisher
- Elsevier BV
- Keywords
- Silver nanoparticles; Aminated polyethersulfone; Antibacterial activities; Leaching; Composite membranes
- Citation
- Materials Science and Engineering C, v.62, pp.732 - 745
- Indexed
- SCIE
SCOPUS
- Journal Title
- Materials Science and Engineering C
- Volume
- 62
- Start Page
- 732
- End Page
- 745
- URI
- https://scholarworks.bwise.kr/erica/handle/2021.sw.erica/13671
- DOI
- 10.1016/j.msec.2016.02.025
- ISSN
- 0928-4931
- Abstract
- The present study reports the antibacterial disinfection properties of a series of silver nanoparticle (AgNP) immobilized membranes. Initially, polyethersulfone (PES) was functionalized through the introduction of amino groups to form aminated polyethersulfone (NH2-PES, APES). AgNPs were then coordinately immobilized on the surface of the APES composite membrane to form AgNPs-APES. The properties of the obtained membrane were examined by FT-IR, XPS, XRD, TGA, ICP-OES and SEM-EDAX analyses. These structural characterizations revealed that AgNPs ranging from 5 to 40 nm were immobilized on the surface of the polymer membrane. Antibacterial tests of the samples showed that the AgNPs-APES exhibited higher activity than the AgNPs-PES un-functionalized membrane. Generally, the AgNPs-APES 1 cm x 3 cm strip revealed a four times longer life than the un-functionalized AgNPs polymer membranes. The evaluation of the Ag+ leaching properties of the obtained samples indicated that approximately 30% of the AgNPs could be retained, even after 12 days of operation. Further analysis indicated that silver ion release can be sustained for approximately 25 days. The present study provides a systematic and novel approach to synthesize water treatment membranes with controlled and improved silver (Ag+) release to enhance the lifetime of the membranes. (C) 2016 Elsevier B.V. All rights reserved.
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