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The Investigation of Functionalization Role in Multi-Walled Carbon Nanotubes Dispersion by Surfactants
1 , * 1 , 2
1  Science and Technology University
2  Imam hossein university

Abstract: Dispersibility and stability of chemical functionalized multi-walled carbon nanotubes (f MWCNTs) in aqueous solution by using small amount of a cationic ionic liquid (IL), 1- tetradecyl-3-methylimidazolium Chloride, [C14mim]Cl, was investigated and was compared with unfunctionalized MWNTs. The surface modification of MWCNTs was done by acid treatment. The f-MWCNTs are extensively characterized by using FT-IR spectroscopy. Using UV-vis spectroscopy was proved that the presence of functional group on the side wall of MWCNTs significantly affected their dispersibility in an aqueous solution which contains a small amount of imidazolium based IL as dispersing agent.
Keywords: Multi walled Carbon Nanotubes; functionalized Carbon Nanotubes; dispersion; Imidazolium based Ionic Liquid