Chinese Journal of Applied Chemistry ›› 2010, Vol. 27 ›› Issue (08): 987-989.DOI: 10.3724/SP.J.1095.2010.90675

• Communications • Previous Articles     Next Articles

Removal of Impurities in Carbon Nanotubes by Low Energy Ion Beam Irradiation

CAI Dong-Qing1, WU Zheng-Yan1*, WU Lin1, WU Yue-Jin1, CHU Paul K2, YU Zeng-Liang1   

  1. (1.Key Laboratory of Ion Beam Bioengineering,Institute of Plasma Physics,
    Chinese Academy of Sciences,Hefei 230031;
    2.Department of Physics and Materials Science,City University of Hong Kong,Hong Kong)
  • Received:2009-10-16 Revised:2010-01-05 Published:2010-08-10 Online:2010-08-10


Ion beam bombardment was used to bombard the carbon nanotubes. Scanning electron microscopy photographs indicate that ion beam bombardment can eliminate the impurities conveniently. On the other hand, Raman spectra analysis results show that ion beam bombardment do not cause obvious damages on carbon nanotubes. Urea added to carbon nanotubes as an impurity disappears after being irradiating, indicating that the main mechanism of the impurities removal by ion beam is sputtering effect.

Key words: Ion beam bombardment, purification, carbon nanotubes

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