柱撑粘土材料的环境化学行为

Environmental Chemistry Behaviors of the Pillared Clay Mineral Materials

柱撑粘土是一种新型的复合材料 ,国内外近年来进行了广泛和深入的研究。本文系统评述了国内外柱撑粘土复合材料的环境化学行为 :吸附重金属离子、吸附苯酚类物质、吸附磷类物质、吸附废水中的 COD、大气污染等方面。揭示该种新材料在各种污水处理中具有广阔的应用前景。

Pillared clay is one of the new composite materials at present. It shows promise of very broad applications in the field of environmental science,such as sorption of heavy metal cations, removal of chlorinated phenols and phenol,absorption of volatile organic compound,removal of organophosphorus insecticides and so on. Pillared clays and their uncalcined hydroxy intercalated precursors possess the following properties:interlayer cations of high polarizing power, a high surface area,and a low cation exchange capacity. Therefore, these pillared clays are expected to show higher sorption capacities for heavy metal cations,organic compounds than common clay minerals.