磺酸基功能化的介孔材料HSO3-Zr-La-SBA-15的制备  

Preparation of Sulfonic-functionalized Mesoporous Materials HSO3-Zr-La-SBA-15

作　　者：刘婧[1,2] 杨武[2] 毛学荣[3] 薛瑞[2] 郭昊[2] LIU Jing 1,2, YANG Wu2 MAO Xue- tong3 ,XUE Rui2, GUO Hao2(1.Department of Food and Chemical Engineering,Gansu College of Agriculture Technology,Lanzhou 730020, China ; 2. College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou 730070, China ; 3. College of Chemical Engineering and Pharmacy, Jingehu University of Technology, Jingmen 448000, Chin)

机构地区：[1]甘肃农业职业技术学院食品化工系,甘肃兰州730020 [2]西北师范大学化学化工学院,甘肃兰州730070 [3]荆楚理工学院化工与药学院,湖北荆门448000

出　　处：《化学试剂》2018年第5期483-486,506,共5页Chemical Reagents

基　　金：甘肃省科技厅青年科技基金项目(1606RJYA-295);甘肃省高等学校科研项目(2015A-196)

摘　　要：介孔材料具有孔道结构规则有序、孔径均匀且可调、比表面积高、形貌可控、表面可功能化等特点,在大分子吸附、分离,特别是催化等领域有着重要的应用前景。在没有加任何无机酸的情况下,水热法一步制备了双金属掺杂的介孔材料Zr-La-SBA-15（ZLS）,接着以3-巯丙基-三甲氧基硅烷为有机功能试剂,通过采用后接枝法合成了磺酸基功能化的介孔材料HSO3-ZLS,并通过小角X-射线衍射（SXRD）、氮气吸附-脱附、红外光谱、透射电镜和热重等分析方法进行了详细表征。结果表明,修饰后的样品依然保持了SBA-15有序二维六方相介孔结构,且具有比表面及孔容较大、孔径分布较窄、热稳定性较高等优点。Due to uniform and adjustable pore size,high surface area,well-controlled morphology,and easily functionalized surface,as well as regular and ordered channel structures,mesoporous materials have been used in various fields such as absorption,separation,especially catalysis of macromolecules,which are usually difficult to be finished by classical microporous zeolite or molecular sieves.In this paper,the bimetallic mesoporous materials Zr-La-SBA-15（ZLS） were synthesized by a one step hydrothermal route,without addition of mineral acids,then sulfonic-functionalized HSO3-ZLS mesoporous materials were synthesized by a post-grafting procedure using 3-mercaptopropyl trimethoxysilane as organic modifiers,and their structures and physicochemical properties were characterized by SXRD,N2 adsorption-desorption isotherm techniques,IR,TEM and TG.The results indicated that the synthesized materials still maintained ordered mesoporous of two-dimensional hexagonal channel structure,very large specific surface area and pore volume,narrow pore size distribution,high thermostability.

关 键 词：介孔材料 功能化 合成 

分 类 号：O69[理学—化学]