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International Journal of Electrochemistry
Volume 2015, Article ID 890425, 7 pages
http://dx.doi.org/10.1155/2015/890425
Research Article

Evaluation of Hydrophilized Graphite Felt for Electrochemical Heavy Metals Detection (Pb2+, Hg2+)

1Sorbonne Universités, UPMC Universités Paris 06, UMR 7574, Chimie de la Matière Condensée de Paris, 75005 Paris, France
2CNRS, UMR 7574, Chimie de la Matière Condensée de Paris, 75005 Paris, France
3Collège de France, UMR 7574, Chimie de la Matière Condensée de Paris, 75005 Paris, France

Received 5 May 2015; Revised 13 June 2015; Accepted 17 June 2015

Academic Editor: Shengshui Hu

Copyright © 2015 Laila Bouabdalaoui 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

Hydrophilized graphite felt has been used, for the first time, for the electrochemical detection of Hg2+ ions both as single metal species and via its simultaneous detection with Pb2+. To do so, square wave voltammetry (SWV) method was developed with alginate modified graphite felt as working electrode. The structure of the graphite felt such as its high porosity and specific surface area coupled with its good electrical conductivity allows achieving large peak currents via the SWV method, suggesting that the alginate coating helps to preconcentrate metals at the carbon surface. The as-described electrode has low cost, it is easy to manipulate, and the electrochemical analysis can be performed by simple immersion of the felt in the metal solution.