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PVC-Li4Mn5O12复合离子筛的锂吸附性能
引用本文:肖国萍,周龙生,孙淑英,于建国. PVC-Li4Mn5O12复合离子筛的锂吸附性能[J]. 医学教育探索, 2012, 0(4): 402-407
作者姓名:肖国萍  周龙生  孙淑英  于建国
作者单位:华东理工大学国家盐湖资源综合利用工程技术研究中心,上海 200237;华东理工大学国家盐湖资源综合利用工程技术研究中心,上海 200237;华东理工大学国家盐湖资源综合利用工程技术研究中心,上海 200237;华东理工大学国家盐湖资源综合利用工程技术研究中心,上海 200237
基金项目:国家自然科学基金(20906022);国家863计划(2012AA061601)
摘    要:采用PVC粘合成型技术对实验室合成的Li4Mn5O12粉体进行成型,制备出直径约为3.5 mm的球形PVCLi4Mn5O12复合材料,并通过SEM、孔径分布、吸附动力学和选择性测试等手段研究成型前后离子筛的形貌和吸附性能。结果表明:PVCLi4Mn5O12复合样品中的离子筛仍为纳米棒;且球形离子筛具有较大的比表面积,在模拟卤水中对Li+具有良好的选择性吸附性能。

关 键 词:PVC-Li4Mn5O12; 离子筛;锂; 选择性吸附; 卤水
收稿时间:2012-02-29

Lithium Adsorption of PVC-Li4Mn5O12 Ion Sieve
XIAO Guo-ping,ZHOU Long-sheng,SUN Shu-ying and YU Jian-guo. Lithium Adsorption of PVC-Li4Mn5O12 Ion Sieve[J]. Researches in Medical Education, 2012, 0(4): 402-407
Authors:XIAO Guo-ping  ZHOU Long-sheng  SUN Shu-ying  YU Jian-guo
Affiliation:National Engineering Research Center for Integrated Utilization of Salt Lake Resources, East China University of Science and Technology, Shanghai 200237, China;National Engineering Research Center for Integrated Utilization of Salt Lake Resources, East China University of Science and Technology, Shanghai 200237, China;National Engineering Research Center for Integrated Utilization of Salt Lake Resources, East China University of Science and Technology, Shanghai 200237, China;National Engineering Research Center for Integrated Utilization of Salt Lake Resources, East China University of Science and Technology, Shanghai 200237, China
Abstract:Spherical PVC Li4Mn5O12 ion sieves with diameter of about 3.5 mm were prepared by the developed PVC granulation process of Li4Mn5O12 ultrafine powder synthesized in our lab. The morphology and adsorption property were characterized by scanning electron microscopy (SEM) and methods to determine the pore size distribution, adsorption kinetics and selectivity. The nanorod structure of ultrafine powder was well maintained in the composite PVC Li4Mn5O12 ion sieve, and the spherical ion sieve had high specific surface area, high Li+ adsorption capacity and high selectivity for Li+ adsorption in simulated brine.
Keywords:PVC-Li4Mn5O12   ion sieve   lithium   selective adsorption   brine
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