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Química Nova

Print version ISSN 0100-4042On-line version ISSN 1678-7064


GONCALVES, Rosana F. et al. Photoluminescence and CO2 absorption on lanthanum doped CaTiO3 nanoparticles. Quím. Nova [online]. 2004, vol.27, n.6, pp.862-865. ISSN 0100-4042.

Ca1-xLaxTiO3 powders were prepared by the polymeric precursor method. X-ray diffraction (XRD), FT-Raman spectroscopy, transmission electron microscopy (TEM), and N2 and CO2 adsorption were used for the microstructural and surface characterization of the powders. Room temperature photoluminescence (PL) was observed in Ca1-xLaxTiO3 amorphous particles. The PL intensity of these powders was found to be dependent on the lanthanum molar concentration.

Keywords : CaTiO3; lanthanum; photoluminescence; CO2 adsorption.

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