钛基柱撑累托石矿物材料的研究

STUDIES ON TI-PILLARED RECTORITE MINERAL MATERIAL

在氮气环境中用TiCl4 和HCl制成钛基柱撑液 ,采用离子交换法 ,用 [Ti2 0 O3 2 (OH) 12 (OH2 ) 18]4 + Daw son型Ti多核阳离子 ,交换累托石蒙皂石质晶层中的Na等阳离子 ,制成钛基柱撑累托石。通过电子探针定量分析、X射线衍射、红外光谱、热分析及魔角旋转核磁共振等方法 ,对钛基柱撑累托石的成分、结构和热稳定性进行了表征。钛基柱撑累托石具 1 .6nm的层孔隙 ,是一种很有应用前途的柱撑粘土矿物材料 ,有望在催化剂载体及环保材料领域中得到广泛的使用。

Pillaring solution was prepared using TiCl\-4 and HCl in nitrogen atmosphere. Pillared rectorite was made by introducing Dawson type polymeric titanium oxide cations \[Ti\-\{20\}O\-\{32\}(OH)\-\{12\}(OH\-2)\-\{18\}\]\+\{4+\} into the rectorite structure by cation exchange. Composition, structure, and thermal stability of the pillared rectorite were studied with EPMA, XRD, IR, thermal analysis and NMR. The Ti\|pillared rectorite with 16 A interlayer porosities is a new type of clay mineral materials which could be widely used as catalytic media and environmental protection materials.