Evaluation of the formation of oxidants and by-products using Pt/Ti, RuO<sub>2</sub>/Ti, and IrO<sub>2</sub>/Ti electrodes in the electrochemical process
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The aim of this study was to evaluate the formation of oxidants and by-products by using different electrode materials, such as Pt/Ti, RuO<sub>2</sub>/Ti, and IrO<sub>2</sub>/Ti, in the electrochemical process. The harmful by-products ClO<sub>3</sub><sup>−</sup> and ClO<sub>4</sub><sup>−</sup> were formed during the electrolysis of a Cl<sup>−</sup> electrolyte solution, as well as active chlorine, which is the most common water disinfectant. With regard to drinking water treatment, the most efficient electrode was defined as that leading to a higher formation of active chlorine and a lower formation of hazardous by-products. Overall, it was found that the Pt/Ti electrode should not be used for drinking water treatment applications, while the IrO<sub>2</sub>/Ti and RuO<sub>2</sub>/Ti electrodes are ideal for use.Supplementary material
