Synthesis of Cobalt Doped Porous Titania-Silica Prepared by Using the Rice Husks as Both Silicon Source and Template and its Catalytic Oxidation of 4-Methyl Pyridine
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- 作者：Zhongbiao Zhai ; Yingchun Miao ; Qiaoli Sun ; Huiwang Tao ; Wei Wang and Jiaqiang Wang
- 关键词：4 ; Methyl pyridine ; 4 ; Pyridinecarboxylic acid ; Rice husk ; Co doped porous titania ; silica
- 刊名：Catalysis Letters
- 出版年：2009
- 出版时间：September, 2009
- 年：2009
- 卷：131
- 期：3-4
- 页码：538-544
- 全文大小：462.1 KB
文摘
Cobalt doped porous titania-silica with Ti/Si molar ratio of 0.2 synthesized by using rice husks as both silicon source and template presented good product (4-pyridinecarboxylic acid) selectivity (91 % ) and high substrate conversion rate (96 % ) for the catalytic oxidation of 4-methyl pyridine. Fast hot catalyst filtration experiment proved that it acted as a heterogeneous one and can be used a number of times with almost the same activity.