کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
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1645691 | 1517288 | 2013 | 4 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: TiO2/SBA-15 composites prepared using H2TiO3 by hydrothermal method and its photocatalytic activity TiO2/SBA-15 composites prepared using H2TiO3 by hydrothermal method and its photocatalytic activity](/preview/png/1645691.png)
A novel approach of SBA-15 mesoporous materials decorated with various amounts of TiO2 (10–30% TiO2/SBA-15) were prepared by the post-synthesis method using metatitanic acid as precursor and template-retentive SBA-15 as support. The result shows that the silica framework was stable and it was almost not affected by appropriate titania deposition. The photocatalytic activity of the samples was tested by degradation of methyl orange (MO), which was increased with increasing TiO2 loading ratio at first and then decreased. The 17% TiO2/SBA-15 composite calcinated at 600 °C showed the highest photocatalytic ability for degradation of MO because of its appropriate amount of TiO2 and less agglomeration.
SBA-15 mesoporous materials decorated with various amounts of TiO2 were prepared by hydrothermal method using inexpensive metatitanic acid as precursor and template-retentive SBA-15 as support, which showed stable silica framework, good TiO2 dispersion properties, good photocatalytic activity and easy recyclable ability.Figure optionsDownload as PowerPoint slideHighlights
► Chlorine-free, inexpensive inorganic metatitanic acid was used as titanium source.
► As-prepared SBA-15 materials containing template was used as support.
► The nanocomposites have stable silica framework and dispersed TiO2 particles.
► 17% TiO2/SBA-15 exhibited good photocatalytic activity for MO degradation.
Journal: Materials Letters - Volume 99, 15 May 2013, Pages 38–41