کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
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1332101 | 979030 | 2006 | 8 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Effect of ultraviolet irradiation on crystallization behavior and surface microstructure of titania in the sol–gel process Effect of ultraviolet irradiation on crystallization behavior and surface microstructure of titania in the sol–gel process](/preview/png/1332101.png)
Nanosized titania was prepared at various hydrolysis ratios (r=H2O/Ti) by photo-assisted and conventional sol–gel methods. It was found that hydrolysis ratio and ultraviolet irradiation greatly affect the titania crystallization behavior. The introduction of photo-irradiation benefits anatase formation throughout a wide range of hydrolysis ratio. XPS results show that hydrolysis reaction was promoted by ultraviolet irradiation. In addition, photo-irradiation was also verified to be in favor of the generation of large specific surface area and high crystallinity, which resulted in relative high photocatalytic activity of TiO2 prepared by a photo-assisted sol–gel method.
Ultraviolet irradiation was introduced to the sol–gel preparation of titania. Photo-irradiation was verified to have great impact on crystallization behavior and surface microstructure.Figure optionsDownload as PowerPoint slide
Journal: Journal of Solid State Chemistry - Volume 179, Issue 1, January 2006, Pages 41–48