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Degradation Of Reactive Dyes By Contact Glow Discharge Electrolysis In The Presence Of Cl− Ions: Kinetics And Aox Formation, Sadiqua Ramjaum, Ruixia Yuan, Zhaohui Wang, Jianshe Liu

Dr Zhaohui Wang

The plasma generated around the anode during contact glow discharge electrolysis (CGDE) is a rich source of hydroxyl (OH) radicals that can efficiently degrade organic contaminants in aqueous solutions. The degradation of textile azo dyestuffs, Reactive Yellow 176 (Y3RS), Reactive Red 239 (R3BS) and Reactive Black 5 (B5), by anodic CGDE was investigated in the presence of chloride (Cl⁻) ions. The degradation kinetics of the dyes was dependent on the concentration of Cl⁻ ions and on the respective dye being treated. R3BS degradation was inhibited by Cl⁻ ions in the range of 0–0.01 M. When the …