磷酸锆插层复合材料对锶吸附性能研究  

Adsorption Properties of Intercalated Zirconium Phosphate Composite for Sr2+

作　　者：余钱红[1] 牟婉君[1] 陈柏桦[1] 杨宇川[1] 魏洪源[1] YU Qianhong;MU Wanjun;CHEN Baihua;YANG Yuchuan;WEI Hongyuan(Institute of Nuclear Physics and Chemistry,China Academy of Engineering Physics,Mianyang 621900,China)

机构地区：[1]中国工程物理研究院核物理与化学研究所,四川绵阳621900

出　　处：《同位素》2020年第6期356-360,共5页Journal of Isotopes

基　　金：国家自然科学基金面上项目(21876163)。

摘　　要：为有效地去除高放废液中90Sr,实现核燃料循环利用,制备对90Sr具有较高吸附容量的无机材料具有重要意义。本研究采用客体分子插层的方法将正丁胺、正庚胺及正葵胺分别引入α-磷酸锆(α-ZrP)层间,获得了三种具有较大层间距的插层磷酸锆复合材料,并对该类复合材料的形貌、微观结构进行分析,结果表明,插层后材料的宏观形貌未发生明显的变化,而其层间距由于胺类客体分子的插层明显增大;此外,吸附实验表明,插层后磷酸锆对锶的吸附容量明显增大,其中正丁胺插层后获得磷酸锆复合对锶的吸附性能最好,这主要由于锶水合半径、插层分子尺寸及层间距大小对其吸附容量有一定的影响。研究结果可为磷酸锆材料吸附属性的改善以及新型吸附材料的设计提供新的研究思路。The intercalatedα-ZrP materials have been extensively concerned due to their excellent properties for removal of metal ions from complex system.Three intercalatedα-ZrP materials were prepared by intercalating of butylamine,heptyamine and decylamine,and there adsorption behaviors for Sr2+have been studied systemically.Intercalation of guest molecules into the layered structure ofα-ZrP can significantly improve adsorption properties of Sr2+.Theα-ZrP intercalated by butylamine has exhibited the better adsorption ability for Sr2+than those of heptyamine and decylamine.In addition,the Sr2+adsorption capacities onto the intercalatedα-ZrP have a direct relationship with hydrated radius of metal ions,the sizes of intercalated molecules and interlayer distances.

关 键 词：锶 插层 磷酸锆复合材料 吸附 

分 类 号：O615.11[理学—无机化学]