earticle

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An electrochemical generation of ozonized water was investigated by using β-PbO2 electrode or (Pt-TaOx) electrode as an anode and tap water as an anolyte. According to the potentiometric ozone detection which utilizes potential differences arisen from a chemical reaction of ozone and iodide, increasing tendency of ozone concentration on electrolysis time could be observed to show the maximum value of 8 ppm at an electrolysis time of 10 min. Tendency of the concentration of ozone generated at a (Pt-TaOx) electrode on thee lectrolysis time was obtained by means of the potentiometric analysis and is shown in comparison with that a ta β-PbO2 electrode.
Determined by the potentiometric analysis, higher concentration of ozone was generated at a (Pt-TaOx) electrodeth an at a β-PbO2 electrode toshowthemaximumvalueof13.7ppm. Also, it is interesting to see the maximum concentration of generated ozone could be obtained in as short as 3 minutes with a (Pt-TaOx) electrode, which wasquicker than with aβ-PbO2 electrode. Ozone could be generated promptly even at an electrolysis time of 10 sec., suggesting great advantages of this electrochemical process in terms of simplicity and readiness that might be applied directly to practical uses including medical and/or food industries.