Water-soluble single-walled carbon nanotubes via noncovalent functionalization by a rigid, planar and conjugated diazo dye

被引：100
作者：
Hu, CG
Chen, ZL
Shen, AG
Shen, XC
Li, H
Hu, SS [1 ]
机构：
[1] Wuhan Univ, Dept Chem, Wuhan 430072, Peoples R China
[2] Chinese Acad Sci, State Key Lab Transducer Technol, Beijing 100080, Peoples R China
[3] Univ Notre Dame, Dept Chem & Biomol Engn, Notre Dame, IN 46556 USA
来源：
CARBON | 2006年 / 44卷 / 03期
基金：
中国国家自然科学基金;
关键词：
carbon nanotubes; grinding; chemisorption; transmission electron microscopy; functional groups;
D O I：
10.1016/j.carbon.2005.09.003
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
A new noncovalent approach for the dissolution and exfoliation of SWNTs in water by a rigid, planar and conjugated diazo dye, Congo red (CR), is reported. Using a simple physical grinding treatment, the mixture of SWNTs and CR can be dissolved in water with a solubility as high as 3.5 mg/ml for SWNTs. The complete elimination of free CR from the mixture hardly changed this excellent solubility. High-resolution transmission electron microscope images showed that the SWNTs bundles were efficiently exfoliated into individual SWNTs or small ropes, which was further demonstrated by the increased pi-plasmon UV-vis absorption and the upshift of the radical breathing mode in Raman scatterings. The pi-stacking interaction between adsorbed CR and SWNTs was considered responsible for the high solubility. The uninterrupted structure of SWNTs with CR functionalization was ascertained by the unchanged disorder-induced Raman scattering. (C) 2005 Elsevier Ltd. All rights reserved.
引用
收藏
页码：428 / 434
页数：7
相关论文
共 42 条
[1]   Fractionation of multiwalled carbon nanotubes by cascade membrane microfiltration [J].
Abatemarco, T ;
Stickel, J ;
Belfort, J ;
Frank, BP ;
Ajayan, PM ;
Belfort, G .
JOURNAL OF PHYSICAL CHEMISTRY B, 1999, 103 (18) :3534-3538
[2]   Resonant Raman study of the structure and electronic properties of single-wall carbon nanotubes [J].
Alvarez, L ;
Righi, A ;
Guillard, T ;
Rols, S ;
Anglaret, E ;
Laplaze, D ;
Sauvajol, JL .
CHEMICAL PHYSICS LETTERS, 2000, 316 (3-4) :186-190
[3]   Characterization of the interaction of gamma cyclodextrin with single-walled carbon nanotubes [J].
Chambers, G ;
Carroll, C ;
Farrell, GF ;
Dalton, AB ;
McNamara, M ;
Panhuis, MIH ;
Byrne, HJ .
NANO LETTERS, 2003, 3 (06) :843-846
[4]   Psychiatric morbidity and post-traumatic symptoms among survivors in the early stage following the 1999 earthquake in Taiwan [J].
Chen, CC ;
Yeh, TL ;
Yang, YK ;
Chen, SJ ;
Lee, IH ;
Fu, LS ;
Yeh, CY ;
Hsu, HC ;
Tsai, WL ;
Cheng, SH ;
Chen, LY ;
Si, YC .
PSYCHIATRY RESEARCH, 2001, 105 (1-2) :13-22
[5]   Noncovalent engineering of carbon nanotube surfaces by rigid, functional conjugated polymers [J].
Chen, J ;
Liu, HY ;
Weimer, WA ;
Halls, MD ;
Waldeck, DH ;
Walker, GC .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2002, 124 (31) :9034-9035
[6]   Noncovalent sidewall functionalization of single-walled carbon nanotubes for protein immobilization [J].
Chen, RJ ;
Zhang, YG ;
Wang, DW ;
Dai, HJ .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2001, 123 (16) :3838-3839
[7]   Single-waited carbon nanotubes under the influence of dynamic coordination and supramolecular chemistry [J].
Chichak, KS ;
Star, A ;
Altoé, MVR ;
Stoddart, JF .
SMALL, 2005, 1 (04) :452-461
[8]  
Dresselhaus MS, 2001, CARBON NANOTUBES SYN
[9]   Unbundled and highly functionalized carbon nanotubes from aqueous reactions [J].
Dyke, CA ;
Tour, JM .
NANO LETTERS, 2003, 3 (09) :1215-1218
[10]   Diminished band-gap transitions of single-walled carbon nanotubes in complexation with aromatic molecules [J].
Fernando, KAS ;
Lin, Y ;
Wang, W ;
Kumar, S ;
Zhou, B ;
Xie, SY ;
Cureton, LT ;
Sun, YP .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2004, 126 (33) :10234-10235
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