Electrochemical Oxidation of Amido Black 10B Under Amperostatic Conditions with Vertically Oriented Graphite/Platinum Electrodes

Abstract

This work is devoted to examining the applicability and efficiency of the electrochemical oxidation process for the degradation of Amido black 10B dye (AB 10B) at graphite anode (recovered from the used cell) and platinum cathode. Electrolysis has been carried out in an undivided electrochemical cell in the presence of KCl as supporting electrolyte under amperostatic conditions with vertically oriented graphite anode and platinum cathode. The effect of various parameters like; electrolysis time, current density, initial concentration of dye, amount of supporting electrolyte, pH, cathode and anode materials, COD, kinetics, and energy consumption of the process have been studied. The experimental data well fitted to first-order kinetic reaction. The intermediates formed during electrolysis have been identified with LC-MS and FT-IR spectral studies. It is interesting to notice that at the optimum conditions 97.50% of dye has been degraded with 82.00% COD reduction within 120 min of treatment time during electrolysis.