Light-controlled single-walled carbon nanotube dispersions in aqueous solution

被引：62

作者：

Chen, Senlin ^{[1
]}

Jiang, Yugui ^{[1
]}

Wang, Zhiqiang ^{[1
]}

Zhang, Xi ^{[1
]}

Dai, Liming ^{[2
]}

Smet, Mario ^{[3
]}

机构：

[1] Tsinghua Univ, Dept Chem, Key Lab Optoelect & Mol Engn, Beijing 100084, Peoples R China

[2] Univ Dayton, Sch Engn, Dept Chem & Mat Engn, Dayton, OH 45469 USA

[3] Katholieke Univ Leuven, Dept Chem, B-3001 Heverlee, Belgium

来源：

LANGMUIR | 2008年 / 24卷 / 17期

基金：

中国国家自然科学基金;

关键词：

D O I：

10.1021/la8020063

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

We have succeeded in dispersing single-walled carbon nanotubes (SWNTs) into an aqueous solution of poly(ethylene glycol)-terminated malachite green derivative (PEG-MG) through simple sonication. It was found that UV exposure caused reaggregation of these predispersed SWNTs in the same aqueous medium, as adsorbed PEG-MG photochromic chains Could be effectively photocleavaged from the nanotube surface. The observed light-controlled dispersion and reaggragation of SWNTs in the aqueous Solution should facilitate the development of SWNT dispersions with a controllable dispersity for potential applications.

引用

页码：9233 / 9236

页数：4

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