期刊
MATERIALS SCIENCE & ENGINEERING C-MATERIALS FOR BIOLOGICAL APPLICATIONS
卷 32, 期 6, 页码 1682-1689出版社
ELSEVIER
DOI: 10.1016/j.msec.2012.04.066
关键词
Nanocomposite; Cu(OH)(2) nanoparticles; Ionic liquid; Multiwalled carbon nanotubes; Diclofenac; Drug analysis
资金
- post-graduate office of Guilan University
This paper describes the development and utilization of a new nanocomposite consisting of Cu(OH)(2) nanoparticles, hydrophobic ionic liquid 1-ethyl-3-methylimidazolium hexafluorophosphate (EMIMPF6) and multiwalled carbon nanotubes for glassy carbon electrode modification. The nanocomposite was characterized by transmission electron microscopy (TEM), scanning electron microscopy (SEM) along with energy-dispersive X-ray spectroscopy (EDX). The modified electrode was used for electrochemical characterization of diclofenac. Using differential pulse voltammetry, the prepared sensor showed good sensitivity and selectivity with low overpotential for the determination of diclofenac in the range from 018 to 119 mu M, with a detection limit of 0.04 mu M. Electrochemical studies suggested that the MWCNTs/Cu(OH)(2) nanoparticles/IL nanocomposite modified electrode provided a synergistic augmentation on the voltammetric behavior of electrochemical oxidation of diclofenac, which was indicated by the improvement of anodic peak current. (C) 2012 Elsevier B.V. All rights reserved.
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