Role of Graphite Electrodes for Removal of Persistent Contaminants in Electrochemical Systems with Chloride Salts as an Electrolyte: A Case Study of Disappearance of an Azo Dye

In this study, a Hoffman cell with a 4.28 M NaCl solution at 298 K and initial pH ∼ 6 was operated at 0.1 A and ∼16 V to identify the main redox reactions on the surface of the graphite anode and cathode. The measured volumes of evolved gas and the concentration of free chlorine in the anode cell re...

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