Cr(VI) Reduction using Polyaniline Coating on RVC Electrodes

Abstract

Polyaniline coatings electrodeposited by cyclic voltammetry on RVC electrodes are studied as a system to reduce Cr(VI) to Cr (III). Various polymer film electrodeposition conditions are assessed, such as the number of scans, anodic potential limit, monomer concentration and background electrolyte concentration. The results show that to achieve a high Cr(VI) transformation rate, deposits with a large polymer mass must be obtained, and that the structures must be as open as possible in order to afford the Cr(VI) greater permeability, thus increasing the conversion rate.