UNESCO, SUEZ IMPROVE ACCESS TO SAFE WATER

Abstract

Present communication deals with demonstration of a simple and facile approach towards electrochemical synthesis of single walled carbon nanotubes (SWNTs) and polyaniline (PANI) nanocomposite by electrochemical method and its application for the detection of Ni(II) metal ion from aqueous media in presence of ethylenediamine (EDA) chelating ligand. The modification of PANI/SWNTs nanocomposite with EDA was done through simple dip coating technique at room temperature. Polyaniline (PANI) and single walled carbon nanotubes (SWNTs) nanocomposite considered as a sensing backbone. EDA served the purpose of selective detection of Ni(II) metal ion from aqueous media due to its ring-like structure. Ethylenediamine functionalized PANI/SWNTs nanocomposite (EDA-PANI/SWNTs) properties are evident from Electrochemical, Fourier transform infrared spectrometer (FTIR), Raman Spectroscopy, X-ray diffraction (XRD) and Atomic force microscope (AFM) analysis. Differential Pulse Voltammetry (DPV) technique was applied for the electrochemical analysis of Ni(II) ion. All recorded observations revealed that EDA modified PANI/SWNTs nanocomposite is suitable for the detection of Ni(II) ion.