Dispersion of Single-wall Carbon Nanotubes in Bile Salt Surfactants and Separation of SWCNTs(6,5) by Aqueous Two-phase Extraction

被引：2

作者：

Xu Hongmei ^{[1
]}

Li Jie ^{[1
]}

Qiao Yunfan ^{[2
]}

Zhang Min ^{[1
]}

Zhang Hongyang ^{[2
]}

Wang Yuerong ^{[2
]}

Hu Ping ^{[2
]}

机构：

[1] East China Univ Sci & Technol, Sch Pharm, Shanghai Key Lab New Drug Design, Shanghai 200237, Peoples R China

[2] East China Univ Sci & Technol, Sch Chem & Mol Engn, Shanghai Key Lab Funct Mat Chem, Shanghai 200237, Peoples R China

来源：

CHEMICAL JOURNAL OF CHINESE UNIVERSITIES-CHINESE | 2017年 / 38卷 / 07期

基金：

中国国家自然科学基金;

关键词：

Single-wall carbon nanotubes; Bile salt surfactant; Aqueous two-phase system; Dispersion; Separation; CHIRALITY SEPARATION; GEL CHROMATOGRAPHY; FRACTIONATION;

D O I：

10.7503/cjcu20160929

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Single-wall carbon nanotubes(SWCNTs) have sparked great interests because of their outstanding mechanical, electrical and chemical properties. The dispersion of SWCNTs in solvent is the key of their application. In this article, we investigated the abilities of six types of bile salt surfactants including sodium taurodeoxycholate and sodium deoxycholate to disperse SWCNTs. The results of UV-Vis-NIR absorption spectra show that bile salt surfactants can be used to disperse SWCNTs with a tip sonication at 225 W for 1 h. More SWCNTs can be dispersed in 2%(mass fraction) of sodium taurodeoxycholate solution compared with that in sodium deoxycholate. We also applied an aqueous two. phase solvent system containing polyethyleneglycol/dextran to separate SWCNTs(6,5). The dispersants and separation method proposed in this article provide helpful technical support for preparation of single chirality SWCNTs.

引用

页码：1148 / 1154

页数：7

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