Electrochemical Chelation of Heavy Metals by 2-Benzimidazole
Received Date: Feb 12, 2018 / Accepted Date: Feb 28, 2018 / Published Date: Mar 05, 2018
Abstract
The performance of carbon paste electrodes modified with 2-Benzimidazole Thiol (BIT) was investigated as a modified electrode for the determination of lead. 2-Benzimidazole was developed and introduced as a new modifying agent for heavy metal chelation. The physical parameters that could influence the current densities were investigated and optimized. The prepared electrode showed a good linear response to lead ions in the different concentrations, the detection limit was 2,77.10-9 mol/l. The behavior of Pb2+ is studied by Square Wave Voltammetry (SWV), Cyclic Voltammetry (CV) and Electrochemical Impedance Spectroscopy (EIS). Three peaks of oxidation of Pb2+ are observed successively at -0.7 V, -0.5 V and -0.42 V, the peak of reduction occurs at +0.43 V. The interference effect was studied.
Keywords: Lead; 2-Benzimidazole Thiol; Square Wave Voltammetry (SWV); Cyclic Voltammetry (CV); Electrochemical impedance spectroscopy (EIS)
Citation: Charaf L, Madiha E, Hind S, Amine SM, Jihane E, et al. (2018) Electrochemical Chelation of Heavy Metals by 2-Benzimidazole. J Powder Metall Min 7: 188. Doi: 10.4172/2168-9806.1000188
Copyright: © 2018 Charaf L, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
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