| TiO2 is an important kind of photocatalytic material. TiO2 nanotubes and TiO2 hollow spheres have high BET surface area. They have wide application in several fields such as photocatalytic degradation of pollutant, solar energy storage performances, photovoltaic conversion and so on.In this paper, The TiO2 nanoparticle were prepared with tetrabutyl titanate(TNB) which are former material in the sol-gel process. The carbon spheres were prepared via hydrothermal method taking glucose as raw materials, The TiO2 hollow spheres were prepared with the carbon spheres as template in the sol-gel process. Titanate nanotubes were prepared via hydrothermal method taking TiO2 and NaOH as raw materials, and titania nanotube(TNT) with anatase phase were obtained after these titanate nanotubes calcined at 350℃, 450℃, 550℃for 6 hours.The product were characterized by X-ray diffraction, transmission electron microsope(TEM), UV-Vis optical property analysis. The factors affecting photocatalytic property were discussed.The results showed that, With the extension of hydrothermal reaction time, the size of carbon spheres were increased. The anatase hollow spheres have been prepared with the carbon spheres as template. The size of TiO2 hollow spheres is about 650nm, the thickness of the TiO2 hollow spheres is about 18nm.The titanate nanotubes were amorphousand the composition were H2Ti2O5·H2O. With the extension of hydrothermal reaction time, the content and the length of the nanotubes increased. When the hydrothermal reaction temperature was with a certain range, the content and the length of the nanotubes increased, with the increase of hydrothermal reaction temperature. Nanotubes photocatalytic efficiency is proportional to hydrothermal reaction time and temperature of hydrothermal reaction. The TNT were obtain after titanate nanotubes calcined, increasing the calcination temperature, the content of anatase increased, but the shape of the nanotube were destroyed.The influence fators to methylene bule photo-degradation catalysized by the TiO2 nanotubes, including adsorption and crystals. The efficiency of methylene blue photo- degradation catalysized by the titanate nanotubes prepared at 200℃for 20h and calcined at 450℃was the best.
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