Citation: ZHU Sheng-Nan, ZHANG Jing, LI Qing-Wen, LI Hong-Bo, JIN He-Hua, SONG Qi-Jun. Separation of Metallic Single-walled Carbon Nanotubes and Semiconducting Single-walled Carbon Nanotubes by Agarose Gel Electrophoresis[J]. Chinese Journal of Analytical Chemistry, ;2012, 40(12): 1839-1844. doi: 10.3724/SP.J.1096.2012.20360 shu

Separation of Metallic Single-walled Carbon Nanotubes and Semiconducting Single-walled Carbon Nanotubes by Agarose Gel Electrophoresis

1.
¹ School of Chemistry and Material Engineering, Jiangnan University, Wuxi 214000, China;

Corresponding author: SONG Qi-Jun,
Received Date: 6 April 2012
Available Online: 2 July 2012
Fund Project: 本文系国家自然科学基金(Nos.20903069,21175060)资助项目 (Nos.20903069,21175060)

The agarose gel electrophoresis(AGE) is one of the low-cost, large scale technologies for the separation of metallic single-walled carbon nanotubes(m-SWCNTs) and semiconducting single-walled carbon nanotubes(s-SWCNTs). The separated m-SWCNTs are divided into several parts and characterized by the UV-visible-near infrared absorption spectrum and the Raman spectrum respectively. The results show that the moieties with the fastest electrophoresis migration rate contain more m-SWCNTs. Furthermore, the effects of different agarose concentrations on the separating efficiencies of SWCNTs are investigated. It is found that higher concentration of agarose gel is beneficial to the enrichment of the m-SWCNTs and the separating efficiency of the m-SWCNTs could be realized by increasing the charge density on the surface of the SWCNTs.
- Single-walled carbon nanotube,
- Agarose gel electrophoresis,
- Ultraviolet-visible-near infrared absorption spectrum,
- Raman spectrum
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