物理化学学报 >> 2004, Vol. 20 >> Issue (07): 673-675.doi: 10.3866/PKU.WHXB20040701

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XPS研究单壁碳纳米管(SWNTs)上碳与碘形成的共价键

王海芳;邓小勇;王竞;高兴发;邢更妹;施祖进;顾镇南;刘元方;赵宇亮   

  1. 北京大学化学与分子工程学院，北京　100871；中国科学院高能物理研究所，北京　100039
  • 收稿日期:2004-03-18 修回日期:2004-04-16 发布日期:2004-07-15
  • 通讯作者: 刘元方 E-mail:yliu@pku.edu.cn

XPS Study of C－I Covalent Bond on Single-walled Carbon Nanotubes (SWNTs)

Wang Hai-Fang;Deng Xiao-Yong;Wang Jing;Gao Xing-Fa;Xing Geng-Mei;Shi Zu-Jin;Gu Zhen-Nan;Liu Yuan-Fang;Zhao Yu-Liang   

  1. College of Chemistry and Molecular Engineering, Peking University, Beijing　100871;Institute of High Energy Physics, Chinese Academy of Sciences, Beijing　100039
  • Received:2004-03-18 Revised:2004-04-16 Published:2004-07-15
  • Contact: Liu Yuan-Fang E-mail:yliu@pku.edu.cn

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摘要： 采用简单的氯胺-T反应制备了碘化的多羟基单壁碳纳米管(SWNTols)，发现碘与SWNTols的碳形成共价键.用同步辐射光电子能谱(SRXPS)和光电子能谱(XPS)测量发现,样品的碘的电子结合能与两个具有C－I共价键的参考物——苯的衍生物，完全一致，而与具有离子性质的NaI的结合能不同.这个结果对单壁碳纳米管今后的生物医学应用研究有实际意义.

关键词: 单壁碳纳米管(SWNTs), 碘, C－I共价键, 光电子能谱(XPS)

Abstract: A simple method was used to synthesize the iodinated multi hydroxylated SWNTs (SWNTols) by the reaction of SWNTols with NaI in the presence of strong oxidant N-chloro-p-toluenesulfonamide. The formation of the C－I covalent bond was verified by comparing the electron binding energies of iodine of I-SWNTols and the reference materials, which were measured with the synchrotron radiation X-ray photoemission spectroscopy (SRXPS) as well as the conventional X-ray photoelectron spectroscopy (XPS). This result will be useful in applications of SWNTs in the biomedical and pharmaceutical sciences.

Key words: SWNTs, C－I covalent bond, X-ray photoelectron spectroscopy (XPS)