XPS研究单壁碳纳米管(SWNTs)上碳与碘形成的共价键

A simple method was used to synthesize the iodinated multi hydroxylated SWNTs(SWNTols) by the reac-tion 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 materi-als, which were measured with the synchrotron radiation X-ray photoemission spectroscopy (SRXPS) as well as the conven-tional X-ray photoelectron spectroscopy (XPS). This result will be useful in applications of SWNTs in the biomedical and pharmaceutical sciences.