| 高分散TiO_2/SBA-15的制备及光催化性能 |
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| 引用本文： | 张书翠,姜东,唐涛,李君华,徐耀.高分散TiO_2/SBA-15的制备及光催化性能[J].物理化学学报,2010,26(5):1330-1336. |
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| 作者姓名： | 张书翠 姜东 唐涛 李君华 徐耀 |
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| 作者单位： | State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan 030001, P. R. China; Graduate University of Chinese Academy of Sciences, Beijing 100049, P. R. China |
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| 基金项目： | 煤转化国家重点实验室自主研究项目 |
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| 摘 要： | 提出了一种制备高分散TiO2/SBA-15光催化剂的新方法.以钛酸四正丁酯(TB)和羧基改性的SBA-15(COOH/SBA-15)为原料,利用COOH/SBA-15表面上高分散的羧基与TB的配合作用将TB锚定,经过溶剂热及焙烧处理制得TiO2/SBA-15光催化剂.采用粉末X射线衍射(XRD),N2吸脱附,傅里叶变换红外光谱(FT-IR),透射电镜(TEM)等对所得催化剂进行了表征.结果表明:所得TiO2/SBA-15光催化剂为高结晶度的锐钛矿晶型,TiO2均匀地分散在SBA-15表面,TiO2/SBA-15光催化剂保持较好的介孔特征结构,具有较大比表面积.以降解罗丹明B(RhB)为探针反应,考察了所得TiO2/SBA-15光催化剂的光催化性能.与后处理浸渍法制备的光催化剂相比,本文制备的TiO2/SBA-15光催化剂表现出了更加优越的光催化性能.
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| 关 键 词： | 光催化 羧基改性 TiO2 SBA-15 溶剂热 |
| 收稿时间： | 2009-12-10 |
| 修稿时间： | 2010-03-31 |
Synthesis and Photocatalytic Activity of Highly Dispersed TiO_2/SBA-15 |
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| ZHANG Shu-Cui, JIANG Dong, TANG Tao, LI Jun-Hua, XU Yao.Synthesis and Photocatalytic Activity of Highly Dispersed TiO_2/SBA-15[J].Acta Physico-Chimica Sinica,2010,26(5):1330-1336. |
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| Authors: | ZHANG Shu-Cui JIANG Dong TANG Tao LI Jun-Hua XU Yao |
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| Institution: | State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan 030001, P. R. China; Graduate University of Chinese Academy of Sciences, Beijing 100049, P. R. China |
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| Abstract: | Highly dispersed TiO2/SBA-15 photocatalysts were successfully synthesized by solvothermal treatment using titanium n-butoxide(TB) and carboxylate-modified SBA-15(COOH/SBA-15) as raw materials.The good dispersive carboxyl groups of COOH/SBA-15 coordinated with TB molecules to anchor them.After solvothermal treatment,the TB molecules were transformed into TiO2 nanoparticles and finally formed the TiO2/SBA-15 products.The products were calcined to improve the crystallization of TiO2 and to remove the organic c... |
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| Keywords: | TiO2 SBA-15 Photocatalysis Carboxylate-modified TiO2 SBA-15 Solvothermal |
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