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Oxidized Single-Walled Carbon Nanotubes: Removal of Carbonaceous Functionalized Material by Washing with Solvents or Base

Published online by Cambridge University Press:  12 July 2011

Elisa Del Canto ,
Kevin Flavin ,
Dania Movia  and
Silvia Giordani
Elisa Del Canto
Affiliation:
School of Chemistry / Centre for Research on Adaptive Nanostructures and Nanodevices (CRANN), University of Dublin, Trinity College, Dublin 2, Ireland
Kevin Flavin
Affiliation:
School of Chemistry / Centre for Research on Adaptive Nanostructures and Nanodevices (CRANN), University of Dublin, Trinity College, Dublin 2, Ireland
Dania Movia
Affiliation:
School of Chemistry / Centre for Research on Adaptive Nanostructures and Nanodevices (CRANN), University of Dublin, Trinity College, Dublin 2, Ireland
Silvia Giordani*
Affiliation:
School of Chemistry / Centre for Research on Adaptive Nanostructures and Nanodevices (CRANN), University of Dublin, Trinity College, Dublin 2, Ireland
*
*giordans@tcd.ie
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Abstract

Oxidized single-walled carbon nanotubes (SWNTs) have been prepared following a widely reported two-step purification/oxidation procedure in the presence or absence of a treatment with base (NaOH). The oxidized nanotube samples washed with solvents or base appear close to identical with respect to both appearance and properties. Efficient removal of both metal and carbonaceous impurities and introduction of –COOH groups on the nanotube surface have been demonstrated by AFM, Raman and FTIR spectroscopy. Furthermore, persistence of optical properties was confirmed using UV-vis/NIR absorption and NIR photoluminescence spectroscopies.

Keywords

nanoscaleoptical propertiesoxidation
Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 1362: Symposium QQ – Carbon Functional Interfaces , 2011 , mrss11-1362-qq09-44
Copyright
Copyright © Materials Research Society 2011

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References

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