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Self-sterilized composite membranes of cellulose acetate/polyethylene glycol for water desalination


Ahmad, A and Jamshed, F and Riaz, T and Gul, S-e- and Waheed, S and Sabir, A and AlAnezi, AA and Adrees, M and Jamil, T, Self-sterilized composite membranes of cellulose acetate/polyethylene glycol for water desalination, Carbohydrate Polymers, 149 pp. 207-216. ISSN 0144-8617 (2016) [Refereed Article]

Copyright Statement

Copyright 2016 Elsevier Ltd

DOI: doi:10.1016/j.carbpol.2016.04.104


Cellulose acetate/Polyethylene glycol-600 composite membranes were fabricated by two step phase inversion procedure and modified by in-situ reduction of silver nitrate. FTIR spectra demonstrated the existence of functional groups for bonding of silver with oxygen at 370 cm−1, 535 cm−1. The XRD diffractogram indicates characteristic peaks at 2θ values of 38.10, 44.30, 64.40, and 77.30 which confirm the successful incorporation of silver within matrix of composite membranes. The morphology of composite membranes with appearances of spongy voids was exemplified from the scanning electron microscope. The atomic force microscopy was used to determine the increase in the surface roughness of the membranes. The increase in hydrophilicity, measured through contact angle, is rendered to the embedment of silver. The modification of membranes increased the flux from 0.80 to 0.95 L/hr.m2. The resulting membranes have outstanding ability to fight against gram negative Escherichia Coli and Bacillus Sabtilus. The novel cellulose acetate/polyethylene glycol membranes customized with silver have paved the path for evolution of axenic membranes.

Item Details

Item Type:Refereed Article
Keywords:Reverse osmosis, Polyethylene glycol, Cellulose acetate, Phase inversion, antibacterial
Research Division:Chemical Sciences
Research Group:Inorganic chemistry
Research Field:Inorganic chemistry not elsewhere classified
Objective Division:Manufacturing
Objective Group:Industrial chemicals and related products
Objective Field:Industrial chemicals and related products not elsewhere classified
UTAS Author:Waheed, S (Ms Sidra Waheed)
ID Code:115040
Year Published:2016
Web of Science® Times Cited:30
Deposited By:Chemistry
Deposited On:2017-03-06
Last Modified:2017-10-30

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