Functionalization of Multi-walled Carbon Nanotube by Treatment with Dry Ozone Gas for the Enhanced Dispersion and Adhesion in Polymeric Composites

  • Kim, Jung-Hwan ;
  • Min, Byung-Gil
  • Received : 2010.11.08
  • Accepted : 2010.12.01
  • Published : 2010.12.30


A method of functionalization of multi-walled carbon nanotube (MWNT) at room temperature using dry ozone gas is described. The resulting MWNT were characterized by Fourier transform infrared, x-ray photoelectron spectroscopy, and scanning electron microscopy. Combined to these analyses and solubility in liquids, it could be concluded that the dry ozone gas exposure introduces polar functional groups such as carboxylic groups to MWNT similar to acidic modification of MWNT. Particularly, the stable dispersion of MWNT in water after ozone treatment above a critical level could be obtained, implying potential bio-application. The hydrophilic functional groups on the MWNT introduced by ozone oxidation were helpful in improving the interaction with functional groups in PA6 such as $-NH_2$ and -CONH- resulting in improved mechanical properties.


MWNT;Ozone;Functionalization;Polyamide 6


  1. Wong, E. W.; Sheehan, P. E.; Lieber, C. M. Science 1997, 277, 1971.
  2. Tans, S. J.; Verschueren, A. R. M.; Dekker, C. Nature 1998, 393, 49.
  3. Berber, S.; Kwon, Y. K.; Tomanek, D. Phys. Rev. Lett. 2000, 84, 4613.
  4. Sahoo, N. G.; Rana, S.; Cho, J. W.; Li, L.; Chan, S. H. Prog. Polym. Sci. 2010, 35, 837.
  5. Peng, K.; Liu, L-Q.; Li, H.; Meyer, H.; Zhang, Z.; Carbon, in press.
  6. Kim, J. Y.; Han, S.; Hong, S. Polymer 2008, 49, 3335.
  7. Eitan, A.; Jiang, K. Y.; Dukes, D.; Andrews, R.; Schadler, L. S. Chem. Mater. 2003, 15, 3198.
  8. Eitan, A.; Jiang, K. Y.; Dukes, D.; Andrews, R.; Schadler, L. S. Comp. Sci. Tech. 2006, 66, 1162.
  9. Mawhinney, D. B.; Naumenko, V.; Kuznetsova, A.; Yates, J. T.; Liu, J.; Smalley, R. E. J. Am. Chem. Soc. 2000, 122, 2383.
  10. Maa, P.-C.; Siddiquia, N.; Marom, G.; Kim, J.-K. Composites:Part A 2010, 41, 1345.
  11. Najafi, E.; Kim, J. Y.; Han, S. H.; Shin, K. W. Coll. Surf. A: Physicochem. Eng. Aspects 2006, 284, 373.
  12. Lu, C.; Su, F.; Hu, S. Appl. Surf. Sci. 2008, 254, 7035.
  13. Zeng, L.; Wang, W.; Liang, J.; Wang, Z.; Xia, Y.; Lei, D.; Ren, X.; Yao, N.; Zhang, B. Mat. Chem. Phys. 2008, 108, 82.
  14. Mawhinney, D. V.; Naumenko, V.; Kuznetsova, A.; Yates, J. T. J. Am. Chem. Soc. 2000, 122, 2283.
  15. Adhikari, A. R.; Huang, M. B.; Bakhru, H.; Talapatra, S.; Ajayan, P. M.; Ryu, C. Y. Nucl. Inst. Meth. Phys. Res. B 2006, 245, 431.

Cited by

  1. Carbon nanotubes-properties and applications: a review vol.14, pp.3, 2013,
  2. Influence of Ultraviolet/Ozonolysis Treatment of Nanocarbon Filler on the Electrical Resistivity of Epoxy Composites vol.11, pp.1, 2016,
  3. The application of activated carbon modified by ozone treatment for energy storage vol.20, pp.10, 2016,
  4. The effect of graphite functionalization on electrical and shielding properties of epoxy composites vol.639, pp.1, 2016,
  5. Large-scale oxidation of multi-walled carbon nanotubes in fluidized bed from ozone-containing gas mixtures pp.00084034, 2017,