Highly efficient lithium adsorption and stable isotope separation by metal-organic frameworks

Bo Tong; Guijie Guo; Xiangyunxiu Meng; Peng Bai; Jiafei Lyu; Xianghai Guo

doi:10.1039/d2cc02421g

Highly efficient lithium adsorption and stable isotope separation by metal-organic frameworks

Chem Commun (Camb). 2022 Aug 4;58(63):8866-8869. doi: 10.1039/d2cc02421g.

Authors

Bo Tong^{1

2}, Guijie Guo^{1

2}, Xiangyunxiu Meng^{1

2}, Peng Bai^{1

2}, Jiafei Lyu^{1

2}, Xianghai Guo^{3

4}

Affiliations

¹ Department of Pharmaceutical Engineering, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300350, P. R. China.
² Key Laboratory of Systems Bioengineering (Ministry of Education), Tianjin University, Tianjin, 300072, P. R. China.
³ School of Marine Science and Technology, Tianjin University, Tianjin 300072, P. R. China. guoxh@tju.edu.cn.
⁴ Key Laboratory of Ocean Observation Technology of Ministry of Natural Resources, School of Marine Science and Technology, Tianjin University, Tianjin 300072, P. R. China.

PMID: 35856683
DOI: 10.1039/d2cc02421g

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.