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A new chromatographic purification of single-walled carbon nanotubes using high-speed countercurrent chromatography is reported.The purification was accomplished on the basis of experiment that dispersed the single-walled carbon nanotubes with sodium dodecyl sulfate,and the result mixture was separated using the two phase system composed of n-butanol/water=1/1 (v/v). The sizes of SWNTs separated were observed by scanning electron microscopy.The results demonstrated that the high-speed countercurrent chromatography possessed a good efficency for purification of single-walled carbon nanotubes.
A new chromatographic purification of single-walled carbon nanotubes using high-speed countercurrent chromatography is reported on purification of single-walled carbon nanotubes with sodium dodecyl sulfate, and the result mixture was separated using the two phase systems composed of n-butanol / water = 1/1 (v / v). The sizes of SWNTs separated were observed by scanning electron microscopy. The results demonstrated that the high-speed countercurrent chromatography possessed a good efficency for purification of single- walled carbon nanotubes.