Influence of Solution Mineralization on Decomposition of Its Components under Discharge Electroradiolysis Conditions
O. V. POLYAKOV, A. M. BADALYAN and L. F. BAKHTUROVA
Nikolaev Institute of Inorganic Chemistry, Siberian Branch of the Russian Academy of Sciences,
Pr. Akademika Lavrentyeva 3, Novosibirsk 630090 (Russia)
Pages: 633-639
Abstract
Based on the measured yields of the hydrogen peroxide formation and capture of radicals by OH acceptor (isopropanol, phenol), dependences of the current efficiency of water decomposition as well as of an efficiency of an electron capture by an acceptor (nitrobenzene) on the electrolyte concentration (sodium and ammonium tetraborate) in water solutions being exposed to anodic microdischarges have been determined. Non-monotone dependences with maxima have been obtained at concentrations 0.03 mol/l for water decomposition and 0.1-0.15 mol/l for electron capture. This effect is attributable to an increase in a proportion of the anionic current through the discharge plasma-liquid cathode interphase boundary with an increase in electrolyte concentration that lowers the current and power efficiency of the water decomposition and treatment under conditions of a high mineralization of the solution.
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