Photoluminescence and CO2 absorption on lanthanum doped CaTiO3 nanoparticles

Química Nova

Lopes, Kírian Pimenta¹  Valentini, Antoninho¹  Universidade Federal de São Carlos, São Carlos¹  Escote, Márcia Tsuyama¹  Longo, Elson¹  Leite, Edson R.¹  Carreño, Neftalí L. V.¹  Machado, Marco A.¹  Gonçalves, Rosana F.¹ 

关键词: CaTiO3;    lanthanum;    photoluminescence;    CO2 adsorption.;   

DOI  :  10.1590/S0100-40422004000600004

学科分类：化学（综合）

来源: Sociedade Brasileira de Quimica

【 摘 要 】

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.

【 授权许可】

Unknown