中华医学超声杂志

应用化学 ›› 2010, Vol. 27 ›› Issue (08): 987-989.DOI: 10.3724/SP.J.1095.2010.90675

• 研究简报 • 上一篇    下一篇

低能量离子束轰击对碳纳米管中杂质的去除

蔡冬清1,吴正岩1*,吴林1,吴跃进1,朱剑豪2,余增亮1   

  1. (1.中国科学院等离子体物理研究所离子束生物工程学重点实验室 合肥 230031;
    2.香港城市大学物理与材料科学系 香港)
  • 收稿日期:2009-10-16 修回日期:2010-01-05 出版日期:2010-08-10 发布日期:2010-08-10
  • 通讯作者: 吴正岩，研究员; E-mail:zywu@ipp.ac.cn; 研究方向：离子束材料改性
  • 基金资助:
    国家自然科学基金（10975154）资助项目

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

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摘要：

采用低能量离子束对碳纳米管进行轰击。 扫描电子显微镜测试表明，离子束轰击可以方便地去除碳纳米管中的杂质，拉曼光谱结果显示离子束轰击没有对碳纳米管造成明显损伤。 以尿素作为杂质添加到碳纳米管中，经离子束轰击后发现尿素消失，说明离子束对杂质的去除机制为其溅射效应。

关键词: 离子束轰击, 纯化, 碳纳米管

Abstract:

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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