Journal
DESALINATION
Volume 409, Issue -, Pages 163-170Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.desal.2017.01.029
Keywords
Water desalination; Thin film nanocomposite membrane; Reverse osmosis; Acid treated MWCNT-TNT
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Funding
- Ministry of Higher Education [4F306, 4J182, 4J196]
- Ministry of Higher Education under MyBrain15 (MyPhD) scheme
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Polyamide (PA) thin film nanocomposite (TFN) membrane incorporated with multiwalled carbon nanotubes-titania nanotube (MWCNT-TNT) hybrid was successfully fabricated. The hybrid was introduced to the PA selective layer during the interfacial polymerization (IP) of trimesoyl chloride (TMC) and m-phenylenediamine (MPD) monomers over porous commercial polysulfone (PS) ultrafiltration support. The resultant TFN was characterized and applied for desalination. The results revealed that the acid treated MWCNT-TNT, which act as filler in the PA membrane, improved the surface properties of the membrane in term of surface charge, surface roughness and contact angle. Consequently, the water permeability increased significantly without compromising the salt rejection performance. The highest water permeability of 0.74 L/m2 h bar was achieved for the TFN membrane containing 0.05 wt% acid treated MWCNT-TNT, which is approximately 57.45% than that of the neat PA membrane. The NaCI and Na2SO4 rejection of this membrane was 97.97% and 98.07%, respectively that is almost similar to the neat membrane. (C) 2017 ElseVier B.V. All rights reserved.
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