镓取代皂石的合成与交联的研究

Studies on the Synthesis and Cross-1 inking of Ga-substituted Saponite

以XRD、MAS NMR、IR和化学分析等方法研究了镓取代皂石及其羟基铝低聚物交联物。结果表明,Ga占据骨架四面体位置,影响四面体层电荷及Al柱的交联密度。交联物经焙烧后,Al柱与层形成Ga—O—Al_p键,实现了层与柱的交联,而Al_(13)基本结构不变。

The Ga-substituted saponite and its cross-linking materials with hydroxy aluminium oligmer were characterized by means of XRD, MAS NMR, IR, chemical analysis. The results indicate that the charge of tetrahedral sheet and pillaring density are related to the amounts of Gallium in tetrahedral sheet. The binding of pillar with sheet occured by the way of Ga-O-Alp linkage while the pillared Ga-saponite was calcined. But the basic framework of Al13 does not change.