A green access to highly pure single-walled carbon nanotubes by taurocholate-assistant dispersion and centrifugation
(0) Raw single-walled carbon nanotubes produced by arc discharge were oxidized in the air to eliminate amorphous carbon, and then dispersed in the aqueous solution of sodium taurocholate supersonically. Thus obtained stable dispersion was subjected to centrifugation, and the metal catalysts and varying carbon impurities were separated with carbon nanotubes. The efficiency of the above procedure was confirmed by scanning electron microscope observation, thermogravimetry, and optical absorption and Raman spectroscopic analyses. The advantage of this procedure lies in easiness, high purity, and no pollution to environment.
Yongfu Lian
Key Laboratory of Functional Inorganic material Chemistry (Heilongjiang University),Ministry of education,Harbin,150080,China
国际会议
The 8th China International Nanoscience and Technology Symposium(2009第八届中国国际纳米科技湘潭研讨会Cinsts09)
湖南湘潭
英文
1-4
2009-10-23（万方平台首次上网日期，不代表论文的发表时间）