The synthesis, characterization and optical properties of nanocrystallined cerium dioxide by the hydrothermal method

Abstract

Nano-sized cerium dioxides (CeO2) are prepared by the hydrothermal method, using nitric cerium. The XRD study shows that nano-sized CeO2 has an appreciable amount of cubic phase. The nano-sized CeO2 obtained has an average particle size in the range of 4.5-10.3 nm. TEM micrographs show well-dispersed spherical-like and cubic-like CeO2 nanoparticles. The UV-DRS absorption spectrum for alkali-treated CeO2 shows an absorption peak at 365∼384 nm.