| 具有多级孔的纯硅沸石材料的合成 |
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| 引用本文： | 陈丽,王一萌,何鸣元.具有多级孔的纯硅沸石材料的合成[J].高等学校化学学报,2010,31(11):2131-2135. |
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| 作者姓名： | 陈丽 王一萌 何鸣元 |
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| 作者单位： | 华东师范大学化学系, 上海市绿色化学与化工过程绿色化重点实验室, 上海 200062 |
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| 基金项目： | 国家自然科学基金，华东师范大学优秀博士培养基金 |
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| 摘 要： | 采用表面活性剂组装沸石晶种的方法,研究了不同浓度的非离子表面活性剂P123对组装的纳米Silicalite-1沸石晶粒的形貌和性质的影响.实验发现,在稀溶液体系中P123组装的沸石颗粒既在低角区呈现出介孔材料的特性,又在高角区表现出沸石的结构特征;TEM证实纳米粒子间存在无序的蠕虫状介孔孔道.
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| 关 键 词： | 纳米沸石 自组装 多级孔 P123 |
| 收稿时间： | 2010-03-31 |
Synthesis of Silicalite-1 with Hierarchical Porosity |
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| CHEN Li,WANG Yi-Meng,HE Ming-Yuan.Synthesis of Silicalite-1 with Hierarchical Porosity[J].Chemical Research In Chinese Universities,2010,31(11):2131-2135. |
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| Authors: | CHEN Li WANG Yi-Meng HE Ming-Yuan |
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| Institution: | Department of Chemistry, Shanghai Key Laboratory of Green Chemistry and Chemical Processes, East China Normal University, Shanghai 200062, China |
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| Abstract: | Hierarchical Silicalite-1 aggregates were synthesized by the assembly of Silicalite-1 zeolite seeds under different concentrations of P123. The samples were characterized by X-ray diffraction, IR spectroscopy, TEM and N2 adsorption to evaluate the physico-chemical properties of the mesoporous zeolite aggregates. The sample preserved a single well-defined peak in low-angle XRD patterns, at the same time, the diffraction peaks of Silicalite-1 appeared at wide-angle XRD patterns indicate the formation of MFI structure in the composite. The uniform worm-like pore distributed among the ZSM-5 zeolite aggregates was confirmed by TEM image. |
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| Keywords: | Zeolite nano-particle Self-assembly Hierarchical pore P123 |
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