Crown Ether-Grafted Graphene Oxide-Based Materials—Synthesis, Characterization and Study of Lithium Adsorption from Complex Brine DOI Open Access
Ewa Knapik,

Grzegorz Rotko,

Marcin Piotrowski

et al.

Materials, Journal Year: 2024, Volume and Issue: 17(24), P. 6269 - 6269

Published: Dec. 22, 2024

Direct lithium extraction from unconventional resources requires the development of effective adsorbents. Crown ether-containing materials have been reported as promising structures in terms selectivity, but data on adsorption real, highly saline brines are scarce. ether-grafted graphene oxides were synthesized using 2-hydroxymethyl-12-crown-4, hydroxy-dibenzo-14-crown-4 and epichlorohydrin a source anchoring groups. The obtained carbonaceous used to prepare chitosan–polyvinyl alcohol composites. prepared (and intermediate products) characterized FTIR, XRD, Raman spectroscopy SEM-EDS methods. Adsorption tests performed pure diluted LiCl solution ([Li] = 200 mg/kg) well oilfield brine ≈ 220 mg/kg), distribution coefficients (Kd) determined. results show that Kd was range 0.9–75.6, while it 0.2–2.3. study indicates high affinity for is mostly associated with non-selective interaction ions oxide matrix (COOH groups). It also shown application dibenzo-14-crown-4 moiety modification groups increases composite material compared an analogous containing 12-crown-4-ether

Language: Английский

Selective separation of lithium from the hydrochloric acid leachate of lithium ores via the extraction system containing TBP-FeCl3 DOI

Chenquan Ni,

Chang Liu,

Jieyi Wang

et al.

Desalination, Journal Year: 2024, Volume and Issue: 583, P. 117677 - 117677

Published: April 25, 2024

Language: Английский

Citations

10
A highly efficient ternary extraction system with tributyl phosphate/crown ether/NaNTf2 for the recovery of Li+ from low-grade salt lakes DOI

Junyuan Hua,

F YANG, Jintao He

et al.

Desalination, Journal Year: 2024, Volume and Issue: 583, P. 117702 - 117702

Published: April 29, 2024

Language: Английский

Citations

4
Advances in lithium and sodium separation techniques for brine lithium extraction processes DOI
Chi Zhang, Ni He, Xiaoyu Meng

et al.

Journal of environmental chemical engineering, Journal Year: 2025, Volume and Issue: unknown, P. 116471 - 116471

Published: April 1, 2025

Language: Английский

Citations

0
Facile fabrication of bilayer photothermal melamine sponge for efficient lithium extraction DOI
Zhengfei Zhu, Xudong Sun, Yuhui Jiang

et al.

Separation and Purification Technology, Journal Year: 2024, Volume and Issue: unknown, P. 130941 - 130941

Published: Dec. 1, 2024

Language: Английский

Citations

0
Crown Ether-Grafted Graphene Oxide-Based Materials—Synthesis, Characterization and Study of Lithium Adsorption from Complex Brine DOI Open Access
Ewa Knapik,

Grzegorz Rotko,

Marcin Piotrowski

et al.

Materials, Journal Year: 2024, Volume and Issue: 17(24), P. 6269 - 6269

Published: Dec. 22, 2024

Direct lithium extraction from unconventional resources requires the development of effective adsorbents. Crown ether-containing materials have been reported as promising structures in terms selectivity, but data on adsorption real, highly saline brines are scarce. ether-grafted graphene oxides were synthesized using 2-hydroxymethyl-12-crown-4, hydroxy-dibenzo-14-crown-4 and epichlorohydrin a source anchoring groups. The obtained carbonaceous used to prepare chitosan–polyvinyl alcohol composites. prepared (and intermediate products) characterized FTIR, XRD, Raman spectroscopy SEM-EDS methods. Adsorption tests performed pure diluted LiCl solution ([Li] = 200 mg/kg) well oilfield brine ≈ 220 mg/kg), distribution coefficients (Kd) determined. results show that Kd was range 0.9–75.6, while it 0.2–2.3. study indicates high affinity for is mostly associated with non-selective interaction ions oxide matrix (COOH groups). It also shown application dibenzo-14-crown-4 moiety modification groups increases composite material compared an analogous containing 12-crown-4-ether

Language: Английский

Citations

0