Antifouling improvement of polyamide nanofiltration membranes by embedding amino functionalized multiwalled carbon nanotube
Paper ID : 1135-MST2015-FULL
Authors:
1Hamed Zarrabi *, 2Vahid Vatanpour, 3Abbas Shockravi
1Kharazmi University of Tehran
2Faculty of Chemistry, Kharazmi University,
3Faculty of Chemistry, Kharazmi University, 15719-14911 Tehran, Iran
Abstract:
In the present study, high performance polyamide mixed matrix nanofiltration membranes containing amino-functionalized multi-walled carbon nanotubes (NH2-MWNTs) have been developed to increase of flux and reduce of fouling. The membranes were synthesized by embedding NH2-MWNTs in the polyamide layer prepared from reaction of piperazine and trimesoyl chloride. The effect of this nanomaterial on membrane morphology, surface functionality and hydrophilicity was investigated by microscopic, spectroscopic and surface characterization techniques. The permeate flux increased with increasing the amount of NH2- MWCNT. Contact angle measurements showed that functionalized MWCNTs was effective in increasing hydrophilicity. The optimum combination of 0.005 wt% MWCNTs induced the best antifouling properties and improved membrane permeability. Comparison of the prepared NF membrane with commercial membranes approved the high performance of the NH2-MWCNTs embedded membranes.
Keywords:
nanofiltration membranes, amino-functionalized multi-walled carbon nanotubes, hydrophilicity, antifouling
Status : Paper Accepted (Poster Presentation)