Preparation of a microporous layered organic-inorganic hybrid nanocomposite using p-aminotrimethoxysilane and a crystalline layered silicate, ilerite.
Preparation of a microporous layered organic-inorganic hybrid nanocomposite using p-aminotrimethoxysilane and a crystalline layered silicate, ilerite.
复制标题
使用对氨基三甲氧基硅烷和结晶层状硅酸盐伊莱石制备微孔层状有机-无机杂化纳米复合材料。
DOI：
10.1016/j.jcis.2008.11.028
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发表时间：
2009
影响因子：
9.9
通讯作者：
F. Mizukami
中科院分区：
文献类型：
--
作者：
R. Ishii;T. Ikeda;F. Mizukami
为了尝试制备具有层间微孔性的层状有机-无机杂化纳米复合材料，进行了对氨基苯基三甲氧基硅烷（表示为APhS）与伊利石的硅烷化，其中APhS分子使用含有氨基和甲氧基的两个杂官能团在硅酸盐层之间桥接。APhS分子被成功地凝聚并固定在质子化的伊利石的层间。化学分析和29Si固体核磁共振结果表明，APhS分子间的优先缩合占据了层间空间。随后的HCl处理可以去除过量的APhS分子的低聚物种类。去除带来了由残余APhS分子的桥接支持的夹层中的空位。此外，固定化APhS分子对所得纳米复合材料的表面性质有显着的影响，其显示出高的甲苯吸附性。因此，我们发现了一种方法来构建一个微孔，层状纳米复合材料的有机空间与两个杂官能团的桥接。
The silylation of ilerite with p-aminophenyltrimethoxysilane (denoted as APhS) was conducted in order to attempt preparation of a layered organic–inorganic hybrid nanocomposite having interlayer microporosity, in which the APhS molecule bridges between the silicate layers using two heterofunctional groups containing an amino group and a methoxy one. The APhS molecules were successfully condensed and immobilized in the interlayer of the protonated ilerite. Chemical analysis and29Si solid-state NMR results indicated that the interlayer space was occupied by preferential condensation between the APhS molecules. Subsequent HCl treatment could remove the excess amounts of the oligomeric species of the APhS molecules. The removal brought about vacant spaces in the interlayer supported by the bridging of the residual APhS molecules. Furthermore, the immobilized APhS molecules had a significant influence on the surface properties of the resultant nanocomposite, which showed high toluene adsorptivity. Consequently, we found a means to construct a microporous, layered nanocomposite by the bridging of the organic spaces with two heterofunctional groups.