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首页> 外文期刊>Journal of Non-Crystalline Solids: A Journal Devoted to Oxide, Halide, Chalcogenide and Metallic Glasses, Amorphous Semiconductors, Non-Crystalline Films, Glass-Ceramics and Glassy Composites >Novel polyether-inorganic hybrid mesoporous silica synthesized through in situ incorporation of organic functionality
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Novel polyether-inorganic hybrid mesoporous silica synthesized through in situ incorporation of organic functionality

机译：通过有机功能原位合成的新型聚醚-无机杂化介孔二氧化硅

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摘要

A new polyether-inorganic hybrid mesoporous silica has been synthesized through in situ incorporation of hydroquinone (HQ) moiety bridging between two silica units using tetraethyl orthosilicate (TEOS) as silica source in the presence of the self assembly of cationic surfactant under acidic pH. Samples synthesized with TEOS:HQ mole ratio of 2.0 and 4.0 showed good organic loading, mesoporosity and stability. Decreasing this ratio to 1.0 resulted in a organic-rich mesoporous hybrid material, which collapsed during template removal, whereas, increasing this ratio to 8.0 resulted in very poor incorporation of hydroquinone in the mesoporous silica. XRD and N-2 sorption data suggested the mesopore structure. TEM images indicated the wormhole like structure of these mesoporous samples. Solid state NMR data suggested the existence of (-O-C6H4-O)(2)Si*(OSi)(2) and (-O-C6H4-O)Si*(OSi)(3) sites in addition to (Si*(OSi)(4)) sites. UV-Visible and FT-IR data suggested the incorporation of hydroquinone species and Si-O-Ph bonding in the samples. (c) 2006 Elsevier B.V. All rights reserved.
机译：在阳离子表面活性剂在酸性pH条件下自组装的情况下，通过使用原硅酸四乙酯（TEOS）作为二氧化硅源，通过在两个二氧化硅单元之间就地桥接氢醌（HQ）部分的方法，合成了一种新型的聚醚-无机杂化介孔二氧化硅。 TEOS：HQ摩尔比为2.0和4.0合成的样品显示出良好的有机负荷，介孔性和稳定性。将该比率降低至1.0会导致富含有机物的介孔杂化材料，该材料在模板去除过程中会崩溃，而将该比率增加至8.0则会导致对苯二酚在介孔二氧化硅中的掺入非常差。 XRD和N-2吸附数据表明中孔结构。 TEM图像表明这些中孔样品的虫孔状结构。固态NMR数据表明除（Si）外还存在（-O-C6H4-O）（2）Si *（OSi）（2）和（-O-C6H4-O）Si *（OSi）（3）位*（OSi）（4））网站。 UV-Visible和FT-IR数据表明样品中引入了对苯二酚种类和Si-O-Ph键。 （c）2006 Elsevier B.V.保留所有权利。

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