丙酮对Ti-PILCs合成实验条件的影响  

The effect of acetone on test synthesizing conditions of Ti-PILCs

作　　者：项茹[1] 强敏[1] 张一敏[1] 

机构地区：[1]武汉科技大学化工与资源环境学院,武汉430081

出　　处：《化工新型材料》2005年第4期25-28,共4页New Chemical Materials

基　　金：湖北省重大攻关项目;项目编号:鄂科发计字(2002)25号

摘　　要：以钠基蒙脱石为基质材料、钛酸丁酯为钛源,在Ti/蒙脱土=15mmol/g、H/Ti=2 5mol/moL、HCl=5mol/L的条件下,以不同体积比的丙酮与水的混合溶液为溶剂制得了钛交联蒙脱土纳米复合材料(Ti PILCs)。用X射线粉末衍射(XRD)和N2 吸附脱附实验对材料进行表征。结果表明:V水∶V丙酮=1∶2时,层间距达3 .37nm,比表面达389 .1m2 /g,产率为未加丙酮时的2 3倍。说明在Ti PILCs制备过程中,丙酮的加入对蒙脱土层间引入较大粒径的钛聚合羟基阳离子,促进钛聚合羟基阳离子与钠离子交换是有利的。Using Ti(n-C 4H 9O) 4 as titanium resource, Na-montmorillonite as the starting clay, and the mixture of water and acetone as solvent, titanium-pillared clays were prepared when Ti/clay=15mmol/g, H/Ti=2.5mol/mol,HCl=5mol/L. The materials were characterized by power X-ray diffraction, N 2 adsorption/desorption analyses. The results showed, when V H 2O ∶Vacetone =1∶2, titanium-pillared clays possessed interlayer of 3.37nm free spacing and specific surface area of 389.1m2/g, and its productivity is 2.3 times of the materials without adding acetone. It also showed, during the course of preparing, adding acetone can help bigsize polyhydroxy titanium cations inserting the interlayer of Na-montmorillonite and exchangd with Na+.

关 键 词：丙酮 实验条件 X射线粉末衍射 合成 纳米复合材料 聚合羟基 钠基蒙脱石 交联蒙脱土 钠离子交换 基质材料 钛酸丁酯 混合溶液 制备过程 阳离子 MOL 体积比 层间距 比表面 大粒径 Ti 钛源 溶剂 

分 类 号：O643.37[理学—物理化学]