Studies on the Phenol Oxidation with H2O2 Catalyzed by Metallomicelle Made from Crowned Schiff Base Mn(III) Complexes |
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| Authors: | Wei Hu Jian-zhang Li Ying Wang Shen-xin Li Jia-qing Xie |
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| Institution: | 1. Department of Chemistry , Sichuan University of Science &2. Engineering , Zigong, Sichuan, P. R. China huwei2113061@163.com;4. Engineering , Zigong, Sichuan, P. R. China |
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| Abstract: | Metallomicelles made from two Schiff base manganese(III) complexes (MnL1 and MnL2) and surfactants (CTAB and Brij35) were used as mimetic peroxidase in the catalytic oxidation of phenol by H2O2. The catalytic activity of the complexes (MnL1 and MnL2) were investigated. The mechanism and a kinetic mathematic model of the phenol catalytic oxidation were also studied. The results show the optimum acidity of the enzyme-like system in the paper is ca. pH 7.0, the optimum temperature which is ca. 35°C and the optimum molar ratio of H2O2 to the complex is ca. 30 in the complexes-H2O2-buffered solution; the Schiff base manganese(III) complexes and their metallomicelles as peroxidase mimics exhibit good catalytic activity and similar catalytic character to natural enzyme. |
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| Keywords: | Kinetics manganese(III) complexes metallomicelle mimetic peroxidase Schiff base |
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