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Journal of Nanomaterials
Volume 2014 (2014), Article ID 589627, 8 pages
http://dx.doi.org/10.1155/2014/589627
Research Article

Highly Enhanced Vapor Sensing of Multiwalled Carbon Nanotube Network Sensors by n-Butylamine Functionalization

1Polymer Centre, Faculty of Technology, Tomas Bata University in Zlin, 760 01 Zlin, Czech Republic
2Centre of Polymer Systems, University Institute, Tomas Bata University, Nad Ovcirnou 3685, 760 01 Zlin, Czech Republic
3Institute of Hydrodynamics, Academy of Sciences, 166 12 Prague, Czech Republic
4Departamento de Química, Universidad Nacional de Rio Cuarto, 5800 Rio Cuarto, Argentina
5Department of Secondary Science and Mathematics Education, Faculty of Necatibey Education, Balikesir University, 10100 Balikesir, Turkey
6Jozef Stefan Institute F4, Jamova Cesta 39, 1000 Ljubljana, Slovenia

Received 24 April 2014; Revised 26 June 2014; Accepted 1 July 2014; Published 21 August 2014

Academic Editor: Keita Kobayashi

Copyright © 2014 P. Slobodian et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

The sensing of volatile organic compounds by multiwall carbon nanotube networks of randomly entangled pristine nanotubes or the nanotubes functionalized by n-butylamine, which were deposited on polyurethane supporting electrospinned nonwoven membrane, has been investigated. The results show that the sensing of volatile organic compounds by functionalized nanotubes considerably increases with respect to pristine nanotubes. The increase is highly dependent on used vapor polarity. For the case of highly polar methanol, the functionalized MWCNT network exhibits even more than eightfold higher sensitivity in comparison to the network prepared from pristine nanotubes.