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ISSN 1017-2548(Print)
ISSN 2234-8530(Online)
Volume 33, Number 6
JKCSEZ 33(6)
December 20, 1989 |
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Title |
Catalytic Activity of Metal-phthalocyanine Bonded on Polymer for Decomposition of Hydrogen Peroxide
고분자에 결합된 금속-프탈로시아닌의 과산화수소수 분해반응에 대한 촉매활성 |
Author |
Kong Soo Kim, Yong Chul Chun, Young Woo Lee, Sang Hoo Lee
김공수, 김용철, 이영우, 이상호 |
Keywords |
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Abstract |
metal-4,4',4",4"'-tetraaminophthalocyanine [Mt-PcNH2, Mt = Fe(Ⅲ), Co(Ⅱ), Ni(Ⅱ), Cu(Ⅱ)] 및 Mt-PcNH2가 styrene-methacrylic acid 공중합체(STMA)에 고정화된 Mt-PcSTMA를 촉매로 사용한 불균일 수용액계에서 과산화수소의 분해반응에 대한 촉매활성에 대하여 실험하였다. 이 촉매들은 효소반응과 비슷한 촉매활성을 나타내었고, Fe(Ⅲ)-PcNH2이 공중합체에 결합되어 고정화된 Fe(Ⅲ)-PcSTMA가 가장 촉매활성이 우수하였다. 분해반응율은 높은 pH 범위에서 증가하였으며, CN-, CNS-, C2O4-2, I- 등의 공존 음이온의 영향을 받았다. 또한, 반응속도론적인 고찰을 통하여 열역학적 특성값을 구한 결과로부터 촉매반응이 Michaelis-Menten형의 반응기구로 진행됨을 알 수 있었다. The decomposition reaction of hydrogen peroxide was carried out by using metal-4,4',4",4"'-tetraaminophthalocyanine [Mt-PcNH2, Mt = Fe(Ⅲ), Co(Ⅱ)] supported on poly (styrene-co-methacrylic acid), in heterogeneous aqueous system. These catalysts showed a catalse-like activity and Fe(Ⅲ)-PcNH2 supported on the copolymer was particularly effective for the decomposition of hydrogen peroxide. It was found that the rate of decomposition increased smoothly in the higher pH region and catalytic reaction was interfered by adding CN-, CNS-, C2O4-2, I- ions. The kinetics of the catalytic reaction was also investigated and the reaction proceeds according to the Michaelis-Menten type mechanism. |
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662 - 668 |
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