| 초록 |
TiO2 spherical particles were prepared using hydrothermal reaction at different temperatures of 110, 150, 190 ℃ for 5 h. The TiO2 samples were characterized by BET, XRD and SEM surface area analysis. Specific surface areas and particle sizes are in the range of 148 ~ 240 m2/g and 323 - 450 nm, composed of tiny nanoparticles with a size of 5 ~ 7 nm [1,2]. It was found that photocatalytic degradation of methylene blue is highly sensitive to the influence of particle size on the adsorption and photocatalysis. |
