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Mineralization of Aqueous Benzenesulfonates by Contact Glow Discharge Electrolysis
2004 年 72 巻 12 号 p. 836-838
詳細
2004 年 72 巻 12 号 p. 836-838
Contact glow discharge electrolysis (CGDE) of benzenesulfonates in a neutral phosphate buffer solution was investigated. Benzenesulfonic acid was smoothly degraded and eventually mineralized to inorganic carbon and sulfate ion. As the intermediate products, some phenolic compounds were detected as well as carboxylic acids such as oxalate and formate. Also in CGDE of p-toluenesulfonic acid, quite similar results were obtained. Based on the products and kinetic consideration, it was assumed that hydroxyl radicals would play a crucial role in the oxidative degradation of aqueous benzenesulfonates.
