Synthesis of Ti-Beta via mechanochemical route
Synthesis of Ti-Beta via mechanochemical route
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DOI：
10.1007/s10853-007-2104-x
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发表时间：
2008-04-01
影响因子：
4.5
通讯作者：
Muramatsu, Atsushi
中科院分区：
文献类型：
--
作者：
Borjas, Salomon E. Garcia;Yamamoto, Katsutoshi;Muramatsu, Atsushi
*BEA 型钛硅酸盐 Ti-Beta 采用机械化学反应的新方法合成。在这种新的合成方法中，以二氧化钛和二氧化硅粉末为原料，并使用行星式球磨机进行研磨。将如此获得的二氧化硅-二氧化钛复合物在作为结构导向剂的四乙基氟化铵的存在下进行水热处理以获得Ti-Beta材料。通过粉末X射线衍射和紫外-可见光谱对所得钛硅酸盐样品进行了表征。通过这种新方法合成的Ti-Beta材料的结晶行为和催化活性与传统由硅和钛醇盐合成的材料进行了比较。
A *BEA-type titanosilicate, Ti-Beta, has been synthesized by a new method using mechanochemical reaction. In this new synthesis method, titania and silica powders are used as source materials and ground by using a planetary ball mill. Thus obtained silica-titania composite is hydrothermally treated in the presence of tetraethylammonium fluoride as a structure-directing agent to obtain a Ti-Beta material. The titanosilicate samples obtained are characterized by powder X-ray diffractometry and UV-visible spectroscopy. The crystallization behaviors and the catalytic activities of Ti-Beta materials synthesized by this new method are compared with those synthesized conventionally from silicon and titanium alkoxides.