席夫碱配合物在表面活性剂胶束中对过氧化氢分解的催化作用

Decomposition of H_2O_2 catalyzed by complex of schiff base in micelles of surfactants

合成了水杨醛缩牛磺酸席夫碱合铜配合物,研究了该配合物分别在阴离子表面活性剂十二烷基苯磺酸钠(SDBS)、阳离子表面活性剂十六烷基三甲基溴化铵(CTAB)和非离子表面活性剂辛基酚聚氧乙烯醚(OP-10)的胶束中对H2O2分解的催化性能,探讨了pH、过氧化氢浓度对催化性能的影响。结果表明:该配合物在阳离子胶束中对H2O2的分解具有快速催化作用,其催化速率远远高于铜离子本身的催化速率,而且在碱性介质中催化速率明显提高;非离子和阴离子表面活性剂胶束对配合物的催化有禁阻作用。

Cu complex of taurine - salicylic schiff base was prepared. Catalytic activity of the complex in the micelles of different surfactants （SDBS, CTAB or OP- 10） for decomposition of H2O2 was investigated. The effects of different conditions （such as pH and concentrations of H2O2） were also investigated. The results showed that, this Cu complex in the micelle of cationic surfactant can quickly catalyze the decomposition of H2O2, the decomposition rate of H2O2 catalyzed by the complex was much higher than by Cu^2＋ itself, and basic solution was helpful to the decomposition of H2O2. On the contrary the catalytic activity of the complex is hindered in the micelle of non - ionic or anionic surfactants.