LIN  Xing, LIU Weiliang

(Jingdezhen Ceramic Institute, Jingdezhen 333001)

Abstract:TiO₂ nanotubes were synthesized by hydrothermal process, using P25 (TiO₂) powder and NaOH as the reactant. The micro -morphology, structure and composition of titania nanotube (TNT) were characterized by TEM and XRD, and the photocatalytic activity was studied. The results showed that the product is anatase TiO₂ nanotubes with multi-storey tube wall, 10nm~30nm in the external-diameter, several nanometers to tens in the length. In the ultraviolet light, the photocatalytic degradation rate of \MB by TNT was 60% in eighty minutes, higher than the photocatalytic degradation by P25.

Keywords:hydrothermal process, TiO₂ nanotubes, photocatalytic degradation