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Enhanced desalination of polyamide thin film nanocomposite incorporated with acid treated multiwalled carbon nanotube-titania nanotube hybrid

Wan Azelee, Ihsan and Goh, Pei Sean and Lau, Woei Jye and Ismail, Ahmad Fauzi and Rezaei-Dashtarzhandi, M. and Wong, Kar Chun and Subramaniam, Mahesan Naidu (2017) Enhanced desalination of polyamide thin film nanocomposite incorporated with acid treated multiwalled carbon nanotube-titania nanotube hybrid. Desalination, 409 . pp. 163-170. ISSN 0011-9164

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Official URL: http://dx.doi.org/10.1016/j.desal.2017.01.029

Abstract

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 NaCl and Na2SO4 rejection of this membrane was 97.97% and 98.07%, respectively that is almost similar to the neat membrane.

Item Type:Article
Additional Information:RADIS System Ref No:PB/2017/11402
Uncontrolled Keywords:reverse osmosis, water desalination
Subjects:L Education
T Technology > TP Chemical technology
Divisions:Chemical Engineering
ID Code:66157
Deposited By: Widya Wahid
Deposited On:13 Jul 2017 14:24
Last Modified:13 Jul 2017 14:24

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