Abstract
Gallic acid (3,4,5-trihydroxybenzoic acid, GA) which is a key component of humic acids in combination with imidazole affects the catalytic performance of pentachlorophenol (PCP) decomposition by a Fe-porphyrin catalyst via diverse mechanisms. GA can improve drastically the yield and the kinetics of the catalytic oxidation of PCP by a factor of 20. In the presence of GA, imidazole acts competitively with PCP consuming oxidative equivalents. The data of catalytic oxidation products indicate a mechanism where decomposition of PCP occurs through oxidative dechlorination, initialized by an oxo-ferryl porphyrin π-cation radical complex formed on the Fe-porphyrin catalyst.
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This research has been cofinanced by the European Union (European Social Fund – ESF) and Greek national funds through the Operational Program “Education and Lifelong Learning” of the National Strategic Reference Framework (NSRF) – Research Funding Program: Thales. Investing in knowledge society through the ESF.
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© 2013 Zhejiang University Press and Springer Science+Business Media Dordrecht
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Louloudi, M., Papastergiou, M., Perlepes, S.P. (2013). Mechanisms of Co-catalytic Action of Humic-Like Additives on Pentachlorophenol Oxidation by a Fe-Porphyrin Catalyst. In: Xu, J., Wu, J., He, Y. (eds) Functions of Natural Organic Matter in Changing Environment. Springer, Dordrecht. https://doi.org/10.1007/978-94-007-5634-2_98
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DOI: https://doi.org/10.1007/978-94-007-5634-2_98
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