Functionalization of Multi Wall Carbon Nanotubes Using Nitric Acid Oxidation

Saeed S. Ba Hashwan; M.F. Fatin; A. Rahim Ruslinda; M.K. Md Arshad; Uda Hashim; Mat Ayub Ramzan

doi:10.4028/www.scientific.net/AMM.754-755.1156

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 754-755Functionalization of Multi Wall Carbon Nanotubes...

Functionalization of Multi Wall Carbon Nanotubes Using Nitric Acid Oxidation

Abstract:

Functionalized of Multi Wall Carbon Nanotubes (MWCNTs) were demonstrated using the nitric acid (HNO₃) oxidation technique in order to get opened caps, removing carbonaceous and metal particles impurities for carboxylic groups (-COOH). The surface morphology and the existence of the carboxyl-group on the MWCNTs were examined using Fourier Transform Infrared Spectroscopy (FTIR) and Scanning Electron Microscopy (SEM), respectively. The carboxylic groups were observed at the peak of 1640.40cm^-1 via FTIR and indicate the absorbance intensity of the functionalized MWCNTs is 2.22 A which is higher than raw material. Furthermore, SEM image shows the bundle of structure on the raw MWCNTs signified the Van der Waals interaction between MWCNTs while after functionalized a groovy CNTs wall were observed due to presence of carboxyl group at the defect sites.

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Periodical:

Applied Mechanics and Materials (Volumes 754-755)

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1156-1160

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.754-755.1156

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Online since:

April 2015

Authors:

Saeed S. Ba Hashwan*, M.F. Fatin, A. Rahim Ruslinda, M.K. Md Arshad, Uda Hashim, Mat Ayub Ramzan

Keywords:

Functionalization, MWCNTs, Nitric Acid Oxidation, Purification

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