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Spectroscopic Investigation of Modified Single Wall Carbon Nanotube (SWCNT)
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作者 S Hussain p jha +4 位作者 A Chouksey R Raman S.S. Islam T Islam p.K Choudhary 《Journal of Modern Physics》 2011年第6期538-543,共6页
We have investigated the effects of chemical treatment on Single Wall Carbon Nanotube (SWCNT) before and after being modified with HNO3/H2SO4 by Raman, FTIR and UV-Vis-NIR spectroscopy. The results show successful car... We have investigated the effects of chemical treatment on Single Wall Carbon Nanotube (SWCNT) before and after being modified with HNO3/H2SO4 by Raman, FTIR and UV-Vis-NIR spectroscopy. The results show successful carboxylation of the CNT sidewalls as observed from FTIR and UV-Vis-NIR spectroscopy. This successful functionalization is achieved in 6-8 hrs of refluxing. We also report changes in the first and second order Raman spectra of SWNTs functionalized with oxygenated groups. During the experiment, we observe some important Raman features: Radial breathing mode (RBM), Tangential mode (G-band), and Disordered mode (D-band);which are affected due to the chemical oxidation of carbon nanotubes. We found that the ratio of D- to the G-band intensity (Id/Ig), increase after functionalization and the RBM mode in acid treated SWCNTs is almost disappeared. 展开更多
关键词 Single Wall Carbon NANOTUBES FUNCTIONALIZATION RAMAN SPECTROSCOPY Ftir and Uv-Vis-Nir SPECTROSCOPY
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