H2SO4/HNO3/HCl-Functionalization and its effect on dispersion of carbon nanotubes in aqueous media

被引：359

作者：

Osorio, A. G. ^{[1
]}

Silveira, I. C. L. ^{[1
]}

Bueno, V. L. ^{[1
]}

Bergmann, C. P. ^{[1
]}

机构：

[1] Univ Fed Rio Grande do Sul, Dept Mat, Ceram Mat Lab, LACER, BR-90035190 Porto Alegre, RS, Brazil

来源：

APPLIED SURFACE SCIENCE | 2008年 / 255卷 / 05期

关键词：

Carbon nanotubes; Functionalization; Dispersion in aqueous media;

D O I：

10.1016/j.apsusc.2008.07.144

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：

Chemical functionalization is a procedure used in materials science to oxidize the surface of materials. Several researchers use this technique to improve carbon nanotubes (CNTs) interaction and dispersion. The present article evaluates the effect of different functionalization methodologies on dispersion of CNTs in aqueous media. Sulfuric, nitric and chloridric acids were used on the first functionalization. For the second procedure tested the addition of chloridric acid was eliminated; and the third functionalization was done using only nitric acid. Experimental results obtained by Raman spectroscopy indicated the maintenance of the structure of CNTs after all oxidations. The presence of other structures was proved by thermogravimetry decomposition and the addition of functional groups was confirmed by transform Fourier infrared spectroscopy. From these experimental results, we conclude that all methodologies used showed a percentage of adsorption of functional groups on the CNTs. However, based on dispersion analysis in aqueous media, it is observed that this adsorption showed more efficiency on the first functionalization method, followed by the second method. (C) 2008 Elsevier B. V. All rights reserved.

引用

页码：2485 / 2489

页数：5

共 29 条

[1] Surface chemical functionalized single-walled carbon nanotube with anchored phenol structures: Physical and chemical characterization [J].

Bae, Jong Hyun ;

Shanmugharaj, A. M. ;

Noh, Woo Hyun ;

Choi, Won Seok ;

Ryu, Sung Hun .

APPLIED SURFACE SCIENCE, 2007, 253 (09) :4150-4155

[2] Multiwalled carbon nanotubes grafted with polyhedral oligomeric silsesquioxane and its dispersion in poly(L-lactide) matrix [J].

Chen, Guang-Xin ;

Shimizu, Hiroshi .

POLYMER, 2008, 49 (04) :943-951

[3] Carbon nanotube reinforced hydroxyapatite composite coatings produced through laser surface alloying [J].

Chen, Y ;

Zhang, YQ ;

Zhang, TH ;

Gan, CH ;

Zheng, CY ;

Yu, G .

CARBON, 2006, 44 (01) :37-45

[4] In situ grafting of carboxylic acid-terminated hyperbranched poly (ether-ketone) to the surface of carbon nanotubes [J].

Choi, Ja-Young ;

Han, Sang-Wook ;

Huh, Wan-Soo ;

Tan, Loon-Seng ;

Baek, Jong-Beom .

POLYMER, 2007, 48 (14) :4034-4040

[5] Phonons in carbon nanotubes [J].

Dresselhaus, MS ;

Eklund, PC .

ADVANCES IN PHYSICS, 2000, 49 (06) :705-814

[6] Raman spectroscopy on one isolated carbon nanotube [J].

Dresselhaus, MS ;

Jorio, A ;

Souza, AG ;

Dresselhaus, G ;

Saito, R .

PHYSICA B-CONDENSED MATTER, 2002, 323 (1-4) :15-20

[7] Catalytic CVD synthesis of double and triple-walled carbon nanotubes by the control of the catalyst preparation [J].

Flahaut, E ;

Laurent, C ;

Peigney, A .

CARBON, 2005, 43 (02) :375-383

[8] Diameter control of single-walled carbon nanotubes [J].

Kataura, H ;

Kumazawa, Y ;

Maniwa, Y ;

Ohtsuka, Y ;

Sen, R ;

Suzuki, S ;

Achiba, Y .

CARBON, 2000, 38 (11-12) :1691-1697

[9] Functionalization of single-walled carbon nanotube by the covalent modification with polymer chains [J].

Kitano, Hiromi ;

Tachimoto, Kazutaka ;

Anraku, Yasutaka .

JOURNAL OF COLLOID AND INTERFACE SCIENCE, 2007, 306 (01) :28-33

[10] Preparation of poly 2-hydroxyethyl methaerylate functionalized carbon nanotubes as novel biomaterial nanocomposites [J].

Kumar, Nanjundan Ashok ;

Ganapathy, Hullathy Subban ;

Kim, Jong Su ;

Jeong, Yong Seok ;

Jeong, Yeon Tae .

EUROPEAN POLYMER JOURNAL, 2008, 44 (03) :579-586

← 1 2 3 →