Journal
RSC ADVANCES
Volume 5, Issue 126, Pages 103782-103789Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c5ra21027e
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Funding
- Fonds Quebecois de Recherche Nature et Technologies Quebec (FRQNT)
- National Sciences and Engineering Research Council of Canada (NSERC)
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Nowadays, rare earth elements (REEs) and their compounds are critical for the rapidly growing advanced technology sectors and clean energy demands. However, their separation and purification still remain challenging. Among different extracting agents used for REE separation, the diglycolamide (DGA)-based materials have attracted increasing attention as one of the most effective extracting agents. In this contribution, a series of new and element-selective sorbents were generated through derivatisation of the diglycolamide ligand (DGA), grafted to mesoporous silica and tested for the separation of rare earth elements. It is shown that, by tuning the ligand bite angle and its environment, it is possible to improve the selectivity towards specific rare earth elements.
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