4A沸石和地质聚合物的合成与离子交换性能的研究  

Study on the synthesis of zeolite 4A and geopolymer and ion-exchange

作　　者：陈晓堂[1] 徐军[1] 郑娟荣[2] 陈宜俍[1] 郭士岭[1] 秦建昭[1] 

机构地区：[1]郑州大学化学工程学院,郑州450002 [2]郑州大学土木工程学院,郑州450002

出　　处：《化工新型材料》2007年第8期34-35,42,共3页New Chemical Materials

基　　金：国家自然科学基金(50572096)资助项目

摘　　要：采用偏高岭土和氢氧化钠为主要原料合成4A沸石及其前驱体和地质聚合物;对合成的样品进行X射线衍射分析和NH4+离子交换试验,试验结果表明,4A沸石前驱体和地质聚合物具有相似的XRD图和相近的离子交换能力,从而确定地质聚合物具有类似沸石前驱体的三维网状骨架结构特征。　Zeolite 4A and its preformed aluminosilicate precursors with different crystallization time and geopolymer were synthesized from metakaolinnite and sodium hydroxide and deionized water.XRD analysis and NH＋4 ion exchange experiment were carried out on the samples.Test results showed that the XRD patters and NH＋4 ion exchange capability of the precursors of zeolite 4A were similar to that of geopolymer.It was shown that geopolymer has three-dimensional framework structure similar to those of the precursors of zeolite.

关 键 词：地质聚合物 4A沸石 偏高岭土 前驱体 离子交换 

分 类 号：O631.3[理学—高分子化学]