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本研究采用钙基蒙脱石成功地制备了羟基Fe-Al,羟基Cr-Al柱撑蒙脱石。柱撑蒙脱石的层间距达到19 ,比表面积310m2/g ;层间域空间热稳定性可达700℃。文中对柱撑蒙脱石的制备条件、酸性的起因 ,影响层空间结构热稳定性的因素进行了初步的探讨
In this study, hydroxy-Fe-Al and hydroxyl Cr-Al pillared montmorillonite were successfully prepared by calcium-based montmorillonite. Pillared montmorillonite layer spacing of 19, the specific surface area of 310m2 / g; interlayer thermal stability of up to 700 ℃. In this paper, the preparation conditions of pillared montmorillonite, the origin of acidity and the factors affecting the thermal stability of the layer structure are discussed