| 锆掺杂MCM-48氧化硅的合成及其表征 |
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| 引用本文： | 季华,魏明杰,范益群.锆掺杂MCM-48氧化硅的合成及其表征[J].硅酸盐通报,2007,26(5):862-866. |
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| 作者姓名： | 季华 魏明杰 范益群 |
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| 作者单位： | 南京工业大学化学化工学院,材料化学工程国家重点实验室,南京,210009 |
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| 基金项目： | 国家重点基础研究发展计划(No2003CB615707)，国家自然科学基金项目(No20436030) |
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| 摘 要： | 以正硅酸乙酯为硅源,丙醇锆为锆源,十六烷基三甲基溴化铵为模板剂,通过水热合成法制备Zr-MCM-48介孔材料,提高材料的耐碱性能.利用XRD、N2吸附-脱附、XPS等手段对产物进行了结构和性能的分析.XRD检测显示当Zr/Si物质的量比小于0.1时,可以获得长程有序的MCM-48结构.N2吸附-脱附实验、XPS测试等证实Zr已经掺入MCM-48骨架中.稳定性实验结果表明Zr/Si物质的量比为0.03时,Zr-MCM-48材料的耐碱性能明显增强,进一步表明Zr掺入了MCM-48材料的骨架中.
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| 关 键 词： | 介孔 Zr-MCM-48 丙醇锆 锫 |
| 文章编号： | 1001-1625（2007）05-0862-05 |
Synthesis and Characterization of Zirconium Substituted MCM-48 Mesoporous Silica |
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| JI Hua,WEI Ming-jie,FAN Yi-qun.Synthesis and Characterization of Zirconium Substituted MCM-48 Mesoporous Silica[J].Bulletin of the Chinese Ceramic Society,2007,26(5):862-866. |
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| Authors: | JI Hua WEI Ming-jie FAN Yi-qun |
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| Affiliation: | State Key Laboratory of Material-Oriented Chemical Engineering,College of Chemistry and Chemical Engineering, Nanjing University of Technology, Nanjing 210009, China |
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| Abstract: | Zirconium substituted MCM-48 mesoporous silica was prepared via hydrothermal synthesis method,using zirconium propoxide as zirconium precursor in order to improve its resistance to alkaline solution.The structure and the micro-morphology of the MCM-48 mesoporous silica with the zirconium were investigated through the analyses of XRD,nitrogen adsorption-desorption isotherm and XPS et al.The XRD shows that the well-ordered MCM-48 was obtained when the Zr/Si molar ration is less than 0.10.Characterization of nitrogen adsorption-desorption isotherm and XPS confirms that zirconium is incorporated into the framework of the MCM-48.This material showed high stability in the alkaline solution. |
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| Keywords: | mesoporous Zr-MCM-48 zirconium propoxide zirconium |
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