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Jakub Ederer,Adam Novák,Pavel Janoš,Martin Štastny,Jirí Henych,Matouš Bárta,Petr Ryšánek,Jakub Tolasz 한국공업화학회 2023 Journal of Industrial and Engineering Chemistry Vol.123 No.-
Nanocrystalline cerium oxide (CeO2) was used as an effective catalytic and adsorption material for thesafe removal of selected phosphorus compounds. Several CeO2 samples were prepared by a simple coprecipitationmethod with subsequent annealing at temperatures between 400–600 C, and their sorptionability for inorganic phosphates was studied together with their ability to decompose the organophosphoruscompound - paraoxon methyl (PO) - with the goal to find the relations between the sorptionand catalytic activity of the prepared materials. It was found that a complex set of physical and chemicalcharacteristics (surface area, crystallite size, pore volume/size, the number of surface hydroxyl groups)plays a crucial role in the governing of adsorption ability and catalytic activity. From the dependenceof some characteristics (i.e., the number of surface hydroxyl groups, BET surface area, crystallite size)on the annealing temperature and their mutual correlations, the model describing the degradation oforganophosphate compounds on the surface of cerium oxide was deduced.