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Issue 18, 2014
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An In-ZnO nanosheet–modified carbon nanotube–polyimide film sensor for catechol detection

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Abstract

We report the fabrication of a catechol (CC) sensor based on an In-modified ZnO/carbon nanotube–polyimide (In-ZnO/PI–CNT) film by using a simple electrochemical method. The decoration of In nanoparticles and control of the size and morphology of In nanostructures provide a great opportunity to improve the catalytic activity of ZnO nanosheets. In nanoparticles supported on the ZnO nanosheets exhibit relatively large surface areas and can enhance the electron transfer. An In-ZnO/PI–CNT film is more active for the catalysis of CC than the ZnO/PI–CNT film and the In(3.79%)-ZnO/PI–CNT film shows the best catalytic activity. The In(3.79%)-ZnO/PI–CNT film sensor exhibits a wide linear range, good long-term stability and reproducibility, and performs well for detection of CC in real water samples. The In(3.79%)-ZnO/PI–CNT film holds great potential for the fabrication of efficient sensors.

Graphical abstract: An In-ZnO nanosheet–modified carbon nanotube–polyimide film sensor for catechol detection

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Supplementary files

Article information


Submitted
30 Dec 2013
Accepted
18 Feb 2014
First published
21 Mar 2014

J. Mater. Chem. A, 2014,2, 6656-6662
Article type
Paper

An In-ZnO nanosheet–modified carbon nanotube–polyimide film sensor for catechol detection

Y. Jiang, L. Jia, S. Yu and C. Wang, J. Mater. Chem. A, 2014, 2, 6656
DOI: 10.1039/C3TA15436J

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