Reaction Factors and Kinetics of Degradation of Malachite Green with Novel Biomimetic Photocatalyst HMS-FePcS

Chinese Journal of Catalysis ›› 2008, Vol. 29 ›› Issue (4): 397-402.

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Reaction Factors and Kinetics of Degradation of Malachite Green with Novel Biomimetic Photocatalyst HMS-FePcS

GAO Guandao1, ZHANG Aiyong1, ZHANG Meng1, CHEN Jinlong2, ZHANG Quanxing2

1 Key Laboratory of Pollution Processes and Environmental Criteria (Nankai University), Ministry of Education, College of Environmental Science and Engineering, Nankai University, Tianjin 300071, China; 2 State Key Laboratory of Pollution Control and Resource Reuse, School of Environment, Nanjing University, Nanjing 210093, Jiangsu, China

Received:2008-04-25 Online:2008-04-25 Published:2012-03-22

Abstract

Abstract: A novel catalyst, HMS-FePcS, prepared by modifying HMS molecular sieve with iron sulfophthalocyanine (FePcS) was found to be highly effective for the degradation of nonbiodegradable malachite green upon visible light irradiation in the presence of H2O2. Influencing factors including temperature, light energy, dosages of the catalyst and H2O2, and active centers were investigated. The experimental data of kinetics from optimum conditions indicated that the reaction is zero order in the initial stage and first order in the second stage. A rational explanation was suggested according to the Langmuir-Hinshelwood model.

Key words: photocatalysis, malachite green, iron sulfophthalocyanine, reaction factor, reaction kinetics

GAO Guandao;ZHANG Aiyong;ZHANG Meng;CHEN Jinlong;ZHANG Quanxing. Reaction Factors and Kinetics of Degradation of Malachite Green with Novel Biomimetic Photocatalyst HMS-FePcS[J]. Chinese Journal of Catalysis, 2008, 29(4): 397-402.

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Reaction Factors and Kinetics of Degradation of Malachite Green with Novel Biomimetic Photocatalyst HMS-FePcS

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