摘要
The TiO2 fihus were prepared on slides by dc reactive magnetron spattering, then the samples were annealed at 300 ℃ ,350 ℃ ,400 ℃ ,450 ℃ ,500 ℃ and 550 ℃ , respectively. X-ray diffraction （XRD） was used to obtain the TiO2 film crystalline structure; X-ray photoelectron spectroscopy （ XPS ） was used to study the film surface stoichiometries ; surface morphologies were studied by scanning electron microscopy （SEM） ; the coatact angle was tested to indicate the TiO2 film wettability ; and the photocatalytic activity testing was couducted to evaluate the photocatalysis properties. The photocatalytic activity and contact angle testing results were correlated with the crystallinity , surface morphologies aud surface · OH concentration of TiO2 films. The samples with a higher polycrystalline anatase structure, rough surface and high · OH concentration displayed a better photoinduced hydrophilicity aud a stronger photocatalysis.
The TiO2 fihus were prepared on slides by dc reactive magnetron spattering, then the samples were annealed at 300 ℃ ,350 ℃ ,400 ℃ ,450 ℃ ,500 ℃ and 550 ℃ , respectively. X-ray diffraction （XRD） was used to obtain the TiO2 film crystalline structure; X-ray photoelectron spectroscopy （ XPS ） was used to study the film surface stoichiometries ; surface morphologies were studied by scanning electron microscopy （SEM） ; the coatact angle was tested to indicate the TiO2 film wettability ; and the photocatalytic activity testing was couducted to evaluate the photocatalysis properties. The photocatalytic activity and contact angle testing results were correlated with the crystallinity , surface morphologies aud surface · OH concentration of TiO2 films. The samples with a higher polycrystalline anatase structure, rough surface and high · OH concentration displayed a better photoinduced hydrophilicity aud a stronger photocatalysis.
基金
FundedbytheNational"863"ProjectFoundation(No.2003LG0034)
