ELECTROCHEMICAL BEHAVIOR OF PARAQUAT ADSORBED ONTO CRYSTALLINE APATITE
M. A. EL MHAMMEDI1, BAKASSE A. 2, CHTAINI A. 1* 1 EQUIPE D’ELECTROCHIMIE ET DES MATÉRIAUX INORGANIQUES, FACULTÉ DES SCIENCES ET TECHNIQUES, UNIVERSITÉ CADI AYAD, BP 523, BENI MELLAL, MAROC 2 LABORATOIRE D’ANALYSE DES MICRO-POLLUANTS ORGANIQUES, FACULTÉ DES SCIENCES, UNIVERSITÉ CHOUAIB DOUKKALI, BP 20,
The carbon paste electrode (CPE) has been used to analyze the electrochemical behavior of paraquat (PQ) adsorbed onto synthesized Ca-hydroxyapatite (HAP) in K2SO4 (0.1M). The cyclic voltammetry results obtained were correlated with square wave voltammetry. The influence of variables such as the concentration of paraquat adsorbed onto apatite (PQ/HAP), and the potential scan rate was tested. X-ray diffraction analysis (XRD), Fourier transformed infrared spectroscopy (FTIR) analysis, and inductively coupled plasma-atomic emission spectrometry (ICP, AES) were used for the characterization of the apatite.
