文献类型：期刊文献

英文题名：Microwave assisted hydrothermal synthesis of MnO2?0.5H2O ion-sieve for lithium ion selective adsorption

作者：Chen, Lifang[1];Xu, Xin[1];Song, Jingjing[1];Zhu, Xuedong[1];Qi, Zhiwen[1]

机构：[1]E China Univ Sci & Technol, Sch Chem Engn, State Key Lab Chem Engn, Shanghai 200237, Peoples R China

年份：2016

卷号：51

期号：5

起止页码：874

外文期刊名：SEPARATION SCIENCE AND TECHNOLOGY

收录：;EI(收录号：20160902001847);WOS:【SCI-EXPANDED(收录号:WOS:000373778300016)】；

基金：This work was supported by the National High Technology Research and Development (863 Program 2012AA061601), the National Natural Science Foundation of China (NSFC 21476084, 21576081), Specialized Research Fund for the Doctoral Program of Higher Education (SRFDP 20120074110008), the Open Project of Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials (2014MCIMKF02), PetroChina Innovation Foundation and the Fundamental Research Funds for the Central Universities of China.

语种：英文

外文关键词：Microwave irradiation; Li1.6Mn1.6O4 precursors; lithium ion-sieve; lithium ion adsorption

摘要：Li1.6Mn1.6O4 (LMO) synthesized by microwave assisted hydrothermal method were used to obtain MnO2 center dot 0.5H(2)O ion sieves (HMO) after acid treatment. The HMO-1 prepared with a Li/Mn molar ratio of 4, at 100oC for 1 h under microwave irradiation, exhibits an effective Li+ adsorption capacity of 5.6 mmol center dot g(-1) and a high selectivity to Li+ with an equilibrium distribution coefficient of 12366.44 mL center dot g(-1). Moreover, it shows almost saturated ion-exchange capacity (> 95%) for Li+ extracted/inserted process. Thus HMO ion-sieves with high adsorption capacity and selectivity to Li+ are expected to be a promising application for Li+ selective adsorption from brine, seawater, and aqueous lithium generated in industries.