摘要
Nanosize TiO 2,Y 2 O 3/TiO 2 particles were prepared by the sol-gel process. The structur e was characterized by means of XRD,TEM. The photoelectric properties of the nan oparticles were studied by PL. The thickness and the surface of the carboxymethy l cellulose film was measured by SEM. Based on a model reaction, the photocataly tic degradation of methylene blue with positive charge was investigated in TiO 2, Y2O3/TiO 2 nanopowder composite films irradiated by UV lamp. The results revealed that the degradation process belonged to the first-order k inetic reaction.
Nanosize TiO2, Y2O3/TiO2 particles were prepared by the sol-gel process. The structure was characterized by means of XRD,TEM. The photoelectric properties of the nanoparticles were studied by PL. The thickness and the surface of the carboxymethyl cellulose film was measured by SEM. Based on a model reaction, the photocatalytic degradation of methylene blue with positive charge was investigated in TiO2,Y2O3/TiO2 nanopowder composite films irradiated by UV lamp. The results revealed that the degradation process belonged to the first-order kinetic reaction.
基金
Support Foundation of Fujian Education Bureau( K04026)
Support Foundation of Fujian Development &Reformation Committee(04FJSD)
