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Citation: CAI Dong-Qing, WU Zheng-Yan, WU Lin, WU Yue-Jin, CHU Paul K, YU Zeng-Liang. Removal of Impurities in Carbon Nanotubes by Low Energy Ion Beam Irradiation[J]. Chinese Journal of Applied Chemistry, ;2010, 27(8): 987-989. doi: 10.3724/SP.J.1095.2010.90675 shu

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

a. Key Laboratory of Ion Beam Bioengineering, Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031;
b. Department of Physics and Materials Science, City University of Hong Kong, Hong Kong

Received Date: 16 October 2009
Revised Date: 6 January 2010

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.
- ion beam bombardment,
- impurity removal,
- carbon nanotubes
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