Direct And Mediated Anodic Oxidation of Organic Pollutants

Literature results summarized in this review show that there are two main strategies for anodic oxidation of organic compounds. The first is to perform electrolysis at a high anodic potential in the region of water discharge, with the participation of intermediates of electrogenerated hydroxyl radicals. The nature of electrode material strongly affects both process selectivity and efficiency. In particular, anodes with low oxygen evolution overpotential, such as graphite, IrO2, RuO2 and Pt permit only partial oxidation of organics, while anodes with high oxygen evolution overpotential, such as SnO2, PbO2 and BDD, favour complete oxidation of organics to CO2, therefore they are ideal electrodes for wastewater…