| 介孔分子筛SBA-15中表面羟基及模板剂去除的1H核磁共振研究 |
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| 引用本文： | 石磊,邹雁,庄继华,贺鹤勇.介孔分子筛SBA-15中表面羟基及模板剂去除的1H核磁共振研究[J].复旦学报(自然科学版),2002,41(3):313-316. |
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| 作者姓名： | 石磊 邹雁 庄继华 贺鹤勇 |
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| 作者单位： | 复旦大学,化学系,上海,200433 |
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| 基金项目： | 国家自然科学基金，教育部科学技术基金，20005310，，， |
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| 摘 要： | ^1H超高速魔角旋转固体核磁共振技术可直接和定量地检测SBA－15表面存在的3种硅羟基，即单羟基（Hs),氢键羟基（Hh)和双羟基（Hg）。此方法可用于准确跟踪介孔分子筛的嫁接和改性过程。^1H核磁共振亦发现，在不同的萃取条件下，多种有机溶剂不能完全除去模板剂，焙烧是在嫁接前除去模板剂的有效方法。
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| 关 键 词： | 介孔分子筛 SBA－15 超高速^1H核磁共振 表面羟基 表征 模板剂去除 硅羟基 |
| 文章编号： | 0427-7104(2002)03-0313-04 |
A 1H NMR Study on Hydroxyl Groups and Removal of Template in Mesoporous Molecular Sieve SBA-15 |
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| SHI Lei,ZOU Yan,ZHUANG Ji hua,HE He yong.A 1H NMR Study on Hydroxyl Groups and Removal of Template in Mesoporous Molecular Sieve SBA-15[J].Journal of Fudan University(Natural Science),2002,41(3):313-316. |
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| Authors: | SHI Lei ZOU Yan ZHUANG Ji hua HE He yong |
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| Abstract: | Three types of hydroxyl groups,which are attributed to single(H s),hydrogen bonded (H h) and geminal SiOH (H g) in mesoporous molecular sieve SBA 15 can be directly and quantitatively observed by 1H ultrafast MAS NMR spectroscopy. This method can be used to follow accurately the graft and modification process of mesoporous molecular sieve. 1H ultrafast MAS NMR also proves that the extraction with a number of organic solvents under different extraction condition cannot remove template molecules completely. Calcination is still the most efficient method to remove the template before graft. |
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| Keywords: | mesoporous molecular sieve SBA 15 1H utralfast MAS NMR surface hydroxyl characterization |
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