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电化学(中英文) ›› 1999, Vol. 5 ›› Issue (4): 401-405. 

• 研究论文 • 上一篇    下一篇

苯酚在热氧化法制备的SnO_2/Ti电极上的电氧化研究

张清松,吴辉煌   

  1. 厦门大学化学系固体表面物理化学国家重点实验室!厦门361005,厦门大学化学系固体表面物理化学国家重点实验室!厦门361005
  • 收稿日期:1999-11-28 修回日期:1999-11-28 出版日期:1999-11-28 发布日期:1999-11-28

Electro oxidation of Phenol on SnO_2/Ti Electrodes Prepared by Thermal Oxidation

Zhang Qingsong Wu Huihuang *   

  1. (Dept.of Chem.,State Key Lab.for Phys.Chem.of the Solid surfaces, Xiamen Univ.,Xiamen 361005
  • Received:1999-11-28 Revised:1999-11-28 Published:1999-11-28 Online:1999-11-28

摘要: 以热氧化法制备的SnO2/Ti 电极作为阳极用于含苯酚酸性溶液的恒电流电解,测定了苯酚浓度、溶液中化学需氧量(COD) 以及瞬时电流效率等随电解时间的变化.结果表明,用SnO2/Ti 电极代替铂作为阳极可使相同氧化电量下的COD 明显下降,而平均电流效率提高了3倍.讨论了两种电极上苯酚氧化的反应机理

关键词: 苯酚, 电化学氧化, SnO_2/Ti电极, 废水处理

Abstract: A SnO 2/Ti electrode prepared by thermal oxidation was used as the anode for galvanostatic electrolysis in acidic solution containing phenol, the time_dependances of phenol concentration,chemical oxygen demand in solution(COD)and instantaneous current efficiency were determined during electrolysis.The results show that with the SnO 2/Ti anode instead of Pt,the COD significantly decreases at the same charge passage, and average current efficiency of oxidation increases by three times The mechanism for phenol oxidation at two electrodes was discussed.

Key words: Phenol, Electro_oxidation, SnO_2/Ti electrodes , Waste_water treatment

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