Generation of sodium hypochlorite (NaOCl) from sodium chloride solution using C/PbO₂ and Pb/PbO₂ electrodes

Abstract

Two modified electrodes (Pb/PbO₂ and C/PbO₂) were prepared by electrodepositing a lead oxide layer on lead and carbon substrates. These modified electrodes were used as anodes for the generation of sodium hypochlorite (NaOCl) from sodium chloride solution. Different operating conditions and factors affecting the treatment process of NaOCl generation, including current density, pH values, conductive electrolytes, and electrolysis time, were studied and optimized. By comparison the C/PbO₂ electrode shows a higher efficiency than the Pb/PbO₂ electrode for the generation of NaOCl.

Keywords

sodium hypochlorite / sodium chloride / lead oxide / electrodeposition / electrodes

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