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    CeO2-catalyzed ozonation of phenol
    (Springer, 2010-12-01) Pinheiro da Silva, M. F.; Soeira, L. S.; Daghastanli, K. R. P.; Martins, T. S. [UNIFESP]; Cuccovia, I. M.; Freire, R. S.; Isolani, P. C.; Universidade de São Paulo (USP); Universidade Federal de São Paulo (UNIFESP)
    Three different cerium citrate-based precursors were used for synthesizing CeO2 through thermal treatment. Three morphological types of CeO2 were obtained. Characterization of these oxides was carried out by XRD patterns, SEM microscopy, N-2 adsorption isotherms, Raman spectroscopy, zeta potential, and UV/Vis luminescence. Ozonation of phenol catalyzed by CeO2 was studied as a representative reaction of environmental interest. the differences on the catalytic activity showed by these three oxides could be correlated to amounts of Ce3+ on CeO2 surface and, consequently, to the demand for oxygen needed to burn each precursor.