Self-sterilized composite membranes of cellulose acetate/polyethylene glycol for water desalination.
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 370cm(-1), 535cm(-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 0.95L/hr.m(2). 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.
Department of Polymer Engineering and Technology, University of the Punjab, Quaid-e-Azam Campus, P.O. Box 54590, Lahore, Pakistan. Electronic address: adnanahmedbaloch@gmail.com.
Adnan
A
Ahmad
Department of Polymer Engineering and Technology, University of the Punjab, Quaid-e-Azam Campus, P.O. Box 54590, Lahore, Pakistan.
Fahad
F
Jamshed
Department of Textile Engineering and Technology, University of the Punjab, Quaid-e-Azam Campus, P.O. Box 54590, Lahore, Pakistan.
Tabinda
T
Riaz
Industrial and Engineering Optics, School of Physics, College of Sciences and Health, Dublin Institute of Technology, Kevin St., Dublin 8, Ireland.
Sabad-E-
SE
Gul
Australian Centre for Research on Separation Science (Across) School of Physical sciences, Chemistry, University of Tasmania, Dobson Road, Sandy Bay, Tasmania 7005, Australia; ARC Centre of Excellence for Electromaterials Science (ACES), School of Chemistry, University of Tasmania, Hobart 7001, Tasmania, Australia.
Sidra
S
Waheed
Department of Polymer Engineering and Technology, University of the Punjab, Quaid-e-Azam Campus, P.O. Box 54590, Lahore, Pakistan.
Aneela
A
Sabir
Department of Chemical Engineering Technology, College of Technological Studies, The Public Authority for Applied Education and Training (PAAET), P.O. Box 42325, Shuwaikh 70654, Kuwait.
Adnan Alhathal
AA
AlAnezi
Department of Polymer Engineering and Technology, University of the Punjab, Quaid-e-Azam Campus, P.O. Box 54590, Lahore, Pakistan.
Muhammad
M
Adrees
Department of Polymer Engineering and Technology, University of the Punjab, Quaid-e-Azam Campus, P.O. Box 54590, Lahore, Pakistan.
Tahir
T
Jamil
D000900:Anti-Bacterial Agents / Q000737:chemistry* / Q000494:pharmacology; D001407:Bacillus / Q000187:drug effects; D002482:Cellulose / Q000031:analogs & derivatives* / Q000737:chemistry / Q000494:pharmacology; D004926:Escherichia coli / Q000187:drug effects; D008567:Membranes, Artificial; D010539:Permeability; D011092:Polyethylene Glycols / Q000737:chemistry*; D054712:Salinity; D013242:Sterilization; D014867:Water / Q000737:chemistry*; D018508:Water Purification / Q000295:instrumentation / Q000379:methods*
D000900:Anti-Bacterial Agents; D008567:Membranes, Artificial; D014867:Water; C005062:acetylcellulose; D011092:Polyethylene Glycols; D002482:Cellulose
Antibacterial; Cellulose acetate; Phase inversion; Polyethylene glycol; Reverse osmosis