Design and synthesis of chelating diamide sorbents for the separation of lanthanides
Journal Article
·
· Inorganic Chemistry Communications, 14(6):971-974
A nanoporous sorbent designed around chelating iminodiacetamide (“IDA-Amide”) moiety was made on mesoporous silica (MCM-41) and evaluated for lanthanide separations (Ce3+, Nd3+, Eu3+, Gd3+, and Lu3+). The effects of solution pH on lanthanide binding were studied, as well as sorption kinetics, and competition from other metal ions. The IDA-Amide SAMMS® demonstrated an interesting difference in the kinetics of sorption of the lanthanide ions in the order of Lu3+ > Eu3+ > Gd3+ > Nd3+ > Ce3+ . The close proximity of the ligands in the IDA-Amide SAMMS® may allow for multiple metal-ligand interactions (“macromolecular chelation”).
- Research Organization:
- Pacific Northwest National Laboratory (PNNL), Richland, WA (US)
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- AC05-76RL01830
- OSTI ID:
- 1019186
- Report Number(s):
- PNNL-SA-77936
- Journal Information:
- Inorganic Chemistry Communications, 14(6):971-974, Journal Name: Inorganic Chemistry Communications, 14(6):971-974 Journal Issue: 6 Vol. 14; ISSN 1387-7003
- Country of Publication:
- United States
- Language:
- English
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