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| 铈改性SBA-15介孔分子筛的合成及催化性能 | |
| 引用本文： | 田志茗,邓启刚,赵德丰. 铈改性SBA-15介孔分子筛的合成及催化性能[J]. 石油化工高等学校学报, 2008, 21(1): 46-50 |
| 作者姓名： | 田志茗 邓启刚 赵德丰 |
| 作者单位： | 1. 大连理工大学国家精细化工重点实验室,辽宁大连,116000;齐齐哈尔大学化学化工学院,黑龙江齐齐哈尔,161000 2. 齐齐哈尔大学化学化工学院,黑龙江齐齐哈尔,161000 3. 大连理工大学国家精细化工重点实验室,辽宁大连,116000 |
| 摘 要： | 利用浸渍法制备了铈改性的介孔材料Ce-SO^2-1-SBA-15采用XRD、红外光谱和N2吸附脱附测定等手段对样品进行了表征。结果表明，制得的复合材料保持载体SBA-15高度有序的介孔二维六角孔道结构。用Hammett指示剂法测定了改性介孔材料表面pH为1.8，属于固体酸。用0.1mol/L的硫酸高铈浸渍SBA-15，焙烧温度为300℃焙烧时间3h，通过乙酸正丁酯的合成反应考察催化剂Ce-SBA-15的制备，酯化率为95.7％。 |
| 关 键 词： | 复合材料 SBA 15分子筛改性 CC 表征 催化 |
| 文章编号： | 1006-396X(2008)01-0046-05 |
| 修稿时间： | 2006-12-06 |
Synthesis and Catalytic Activity of SBA-15 Mesoporous Silica Modified by Cerium |
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| TIAN Zhi-ming,DENG Qi-gang,ZHAO De-feng. Synthesis and Catalytic Activity of SBA-15 Mesoporous Silica Modified by Cerium[J]. Journal of Petrochemical Universities, 2008, 21(1): 46-50 | |
| Authors: | TIAN Zhi-ming DENG Qi-gang ZHAO De-feng |
| Affiliation: | TIAN Zhi-ming1,2, DENG Qi-gang2, ZHAO De-feng1(1. State Key Laboratory of Fine Chemicals , Dalian University of Technology, Dalian Liaoning 116012 ,P. R. China;2.College of Chemistry and Chemical Engineering of Qiqihar University , Qiqihar Heilongjiang 161006, P. R. China ) |
| Abstract: | Mesoporous silica molecular sieve Ce-SO^2-1-SBA 15 was synthesized via incipient-wetness impregnation. Characterization was done by X-ray diffraction （XRD）, IR spectroscopic, nitrogen adsorption techniques . The results show that cerium has been incorporated into SBA 15 molecular sieve. The prepared materials keep the highly ordered mesoporous two-dimensional hexagonal structure and themesoporous channel structure. The acid strength （pH=1.8 ） on catalyst surface was determined by mean of Hammett indication method, and attribute to solid acid. The catalyst prepared by impregnating SBA-15 in solution of 0.1mol/L. ceric sulfate and being calcined at 300℃ for 3 h showcd best catalytic activity in synthesis of n-butyl acetate. The yield of n-butyl acetate was up 95.7% under the optimum conditions. |
| Keywords: | Composite material： SBA-15 molecular sieve modification Cerium Characterization Catalysis |
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