摘要
利用表面活化剂诱导合成法和离子印迹技术,通过TEOS和AAPS酸性催化水解和缩聚反应,将氨基嫁接到介孔材料孔壁上,组装出一种新颖的有序的无机-有机杂化材料;通过IR,XRD,TG,DTA,MIP和粒度分析测定,表征了该杂化材料的组成和孔结构。杂化材料对稀土La3+离子吸附量测定结果表明:杂化材料可对稀土离子有效捕集,La3+印迹杂化材料对模板镧离子比非印迹杂化材料表现出更好的识别选择性。
Using both surfactant-mediated synthesis method and ionic imprinting technique, the amino group was grafted on pore walls of the mesoporous material, a novel ordered hybrid material was assembled via the acid-catalyzed hydrolysis and condensation of TEOS and AAPS. The composition and pore structures were characterized with IR, XRD, TG, DTA, MIP and particle-size analysis. The adsorbing capacities of the hybrid material were determined for La^3＋ , and the result shows that the mesoporous hybrid material is efficient for the capture of rare earth ions, and La^3＋ imprinted hybrid material has a better selectivity of recognition for the templated lanthanum ion than that of non-imprinted hybrid material.
出处
《太原理工大学学报》
CAS
北大核心
2007年第4期316-319,共4页
Journal of Taiyuan University of Technology
基金
国家自然科学基金资助项目(20476067)
关键词
无机-有机杂化材料
稀土离子
化学识别
离子印迹技术
inorganic-organic hybrid material
rare earth ion
chemical recognition
ionic imprinting technique
