高等学校化学学报 ›› 1997, Vol. 18 ›› Issue (6): 864.

• 论文 • 上一篇    下一篇

亚甲紫的电化学聚合和亚硝酸根的电催化还原

汪云, 周东美, 陈刚, 陈洪渊   

  1. 南京大学化学系配位化学研究所, 南京, 210093
  • 收稿日期:1996-06-04 出版日期:1997-06-24 发布日期:1997-06-24
  • 通讯作者: 陈洪渊.
  • 作者简介:汪云, 女, 硕士, 讲师.无锡轻工业大学访问学者.
  • 基金资助:

    国家自然科学基金

The Electrochemical Polymerization of Methylene Violet and Electrocatalytic Reduction of Nitrite

WANG Yun, ZHOU Dong-Mei, CHEN Gang, CHEN Hong-Yuan   

  1. Department of Chemistry, Institute of Coordination Chemistry, Nanjing University, Nanjing, 210093
  • Received:1996-06-04 Online:1997-06-24 Published:1997-06-24

摘要: 运用循环伏安法在光谱纯石墨电极上制备了亚甲紫聚合膜修饰电极.在酸性、中性和碱性溶液中,亚甲紫单体均能在电极上进行电化学聚合得到性能稳定的亚甲紫聚合膜.研究了实验条件对膜生长过程的影响和亚甲紫聚合膜修饰电极的电化学行为,并讨论了该修饰电极对亚硝酸根的电催化还原作用.结果表明:亚硝酸根在亚甲紫聚合膜修饰电极上具有很好的电流响应,催化峰电流与亚硝酸根的浓度在1.0×10-5~3.0×10-3mol/L范围内呈良好的线性关系.

关键词: 电化学聚合, 亚硝酸根, 化学修饰电极, 亚甲紫, 石墨电极

Abstract: Astable poly (methylene violet) chemically modified electrode was prepared on the spectrum-pure graphite electrode by using cyclic voltammetry. The monomer of methy-lene violet could be polymerized on the electrode surface. The effects of various experimental conditions were discussed as for the polymerization process and the electrochemical behaviour of film was investigated in detail. The results exhibited that this film could be used for the electrocatalytic reduction of nitrite. Meanwhile, this electrode also showed a good linear cur-rent response for the NO2- in the range from 1.0×10-5 to 3.0×10-3 mol/L.

Key words: Electrochemically polymerization, Nitrite, Chemically modified electrode, Methylene violet, Graphite electrode

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