Electrocatalytic degradation of acid blue 113 azodye via rh/rho/titanium thermally activated modified electrode

The Removal of undesirable organic or dyestuff impurities from water through electrochemical processes is based on the selecting the suitable electrodes and potential/current conditions required for the degradation of these impurities. In this investigation the rhodium/rhodium oxide/titanium thermally activated modified electrode was used for the electrochemical degradation blue 113 azo dye in its aqueous solutions. The results of oxidation process electro generated Fenton's agent were expressed in terms of the remaining dye concentration and COD removal, which were determined instrumentally. The different operating conditions of treatment process were studied which include: current density, pH, and temperature, time of electrolysis, conductive electrolyte concentration, and initial dye concentration. The optimum operating conditions for each dye were determined. The under-test modified electrode gave good results for the complete removal of dye and COD.