Electrochemical Degradation of Indigocarmine Dye at Ni/Graphite Modified Electrode in Aqueous Solution

Abstract

Degradation of indigo carmine dye(IC) in aqueous solution by Anodic oxidation with a Pd/graphite modified electrode (PdGME) can be applied to the remediation of waste water containing indigocarmine.It indicates that the graphite modified had excellent catalytic performance. The deposited Pd/graphite modified electrode was applied to electrochem. degradation of indigo carmine dye solution This environmentally friendly method decontaminates completely aqueous solutions of this dye. These finding suggest that electrode based reactive sediment capping via sequential reduction/oxidation is a potentially robust and tunable technol. for in situ contaminants degradation The COD value decreases to -98% of the initial COD. Indigocarmine (IC) is more rapidly removed in Pd/graphite modified electrode than in Graphite electrode. The degradation rate increases with increasing current and electrochem. degradation of indigo carmine at palladium graphite follows I order kinetics up to 60% of the reaction. The ICE values of different exptl. conditions are evaluated. These results indicated that the Pd/graphite modified electrode would be promising anode for electrochem. degradation of indigo carmine. The dye is converted into CO2, H2O, and simpler inorganic salts.