高岭石-甘氨酸插层工艺研究  

Research on Processing Conditions of Kaolinite / Glycine Intercalated Compound

作　　者：赵顺平[1,2] 郭玉[3] 薛晨[1,2] 徐衡[1,2] 夏华[4] 

机构地区：[1]安庆师范学院化学化工学院,安徽安庆246011 [2]光、电、磁功能配合物和纳米配合物安徽省重点实验室,安徽安庆246011 [3]安庆师范学院物理与电气工程学院,安徽安庆246011 [4]中国地质大学武汉材化学院,湖北武汉430074

出　　处：《非金属矿》2014年第2期9-11,共3页Non-Metallic Mines

基　　金：国家自然科学基金(21201009);安徽省自然科学基金(KJ2013B118);高校优秀青年人才基金(2011SQRL098)

摘　　要：以高岭石-甲醇复合物为前驱体制备了高岭石-甘氨酸插层复合物,产物采用PXRD、FTIR表征。重点考察了水与甲醇体积比、pH值、甘氨酸浓度、搅拌温度、搅拌时间等工艺条件对插层效果的影响。结果表明,水与甲醇体积比为1∶1,1 mol/L甘氨酸水溶液在等电点6附近,。70℃搅拌24 h,插层效果最佳,插层率约为80%,层间距d(001)值为1.12 nm和1.05 nm,分别对应甘氨酸分子在高岭石层间直立和倾斜60两种取向。The kaolinite-glycine intercalated compound was prepared based on kaolinite-methanol precursor, and characterized by PXRD and FT-IR. The processing conditions including water to methanol volume ratio, pH value, glycine concentration, stirring temperature and time which had important influence on intercalation ratio and interlayer distance changes were researched. The results showed that optimum processing condition should be 1 ： 1 volume ratio, pH value 6, glycine concentration 1 tool/L, stirring at 70 ℃ for 24 h, 80 % intercalation ratio and d（001） values of 1,12 nm and 1.05 um were observed, correspongding to upright and tile with 60° angle models of glycine molecules between kaolinite layers, respectively.

关 键 词：高岭石 甘氨酸 插层 工艺 

分 类 号：TB332[一般工业技术—材料科学与工程]