Highly efficient lithium adsorption and stable isotope separation by metal–organic frameworks
Bo Tong, Guijie Guo, Xiangyunxiu Meng, Peng Bai, Jiafei Lyu, Xianghai Guo
Abstract
The effects of a series of MOFs on the adsorption and separation of lithium isotopes were investigated in this paper. Seven kinds of MOF were prepared, and the characterization studies of MIL-100(Fe) before and after adsorption by X-ray photoelectron spectroscopy (XPS) demonstrated the potential chemical interaction between Fe and Li. The influence of metal ions, counter-ions and solvents on the adsorption capacity and separation factor was investigated. The maximum separation factor can reach 1.048 ± 0.001. MIL-100(Fe) also has good regeneration performance.
Topics & Concepts
Metal-organic frameworkAdsorptionLithium (medication)ChemistryIsotopes of lithiumInorganic chemistrySeparation (statistics)Stable isotope ratioMetalLithium metalChemical engineeringOrganic chemistryIonIon exchangePhysical chemistryElectrodeElectrolyteComputer scienceMedicineQuantum mechanicsPhysicsEngineeringMachine learningEndocrinologyChemical Synthesis and CharacterizationMetal-Organic Frameworks: Synthesis and ApplicationsRadioactive element chemistry and processing