Electrochemical Degradation of Acridine Orange Dye at Ru-Doped Platinum Anode in Aqueous Solution

Degradation of acridine orange (AO) in aqueous solution by anodic oxidation with a Ru-doped Pt electrode (RuDPt) can be applied to the remediation of waste waters containing acridine orange. This environmentally friendly method decontaminates completely aqueous solutions of this dye. The COD value decreases to ~98% of the initial COD. Acridine orange (AO) is more rapidly removed in RuDPt electrode than in platinum electrode alone. The reaction was carried out in presence of dilute NaCl. The degradation rate increases with increasing current and follows I order kinetics up to 60% of the reaction. The rate increases with [NaCl] and decreases with [AO]. The dye is converted into CO2, H2O, NH4 and simpler inorganic salts.