| 混合表面活性剂与调节pH值法高效合成MCM-48 |
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| 引用本文： | 翟尚儒,张晔,吴东,孙予罕.混合表面活性剂与调节pH值法高效合成MCM-48[J].化学学报,2003,61(3):345-349. |
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| 作者姓名： | 翟尚儒 张晔 吴东 孙予罕 |
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| 作者单位： | 中国科学院山西煤炭化学研究所,煤转化国家重点实验室,太原,030001 |
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| 基金项目： | 国家自然科学基金 (No .2 99730 57)，国家重点基础研究专项基金 (No.2 0 0 0 0 4 80 0 1 )资助项目 |
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| 摘 要： | 以正硅酸乙酯（TEOS）为硅源、十六烷基三甲基溴化铵（CTAB）与曲拉通X- 100(TX-100)热合成中孔MCM-48．在合成过程中通过调节溶液pH值可有效提高MCM- 48的收率和水热稳定性，同时采用剂使模板剂的利用效率达到了6.0TEPOS／1.0 Surf．并通过XRD、N_2-吸附／脱附和FT-IR等测试手段对产物进行了表征.
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| 关 键 词： | 硅酸酯 十六烷基三甲基溴化铵 水热反应 模板剂 X射线衍射分析 吸附 解吸 傅里叶变换 红外分光光度法 |
| 修稿时间： | 2002年7月3日 |
Efficient Synthesis of Mesoporous MCM-48 by Using Mixed Surfactants and pH Adjustment Method |
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| Institution: | State Key Laboratory of Coal Conversion,Institute of Coal Chemistry, Chinese Academy of Sciences |
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| Abstract: | Mesoporous molecular sieves MCM-48 were hydrothermally synthesized by using tetraethylorthosilicate (TEOS) as silica source and mixed surfactants of cetyltrimethylammonium bromide (CTAB) and Triton X-100 (TX-100) as co-template. The yields and hydrothermal stability of MCM-48 could be increased considerably by adjusting the pH values of the solutions which had been statically crystallized for a certain time. At the same time, the utilizing efficiency of the mixed surfactants was higher than that using CTAB alone as the template. The synthesized samples were characterized by XRD, N 2 adsorption-desorption isotherms and FT-IR methods. |
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| Keywords: | MCM-48 mixed surfactants efficient synthesis |
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