Lanthanide Selective Sorbents: Self-Assembled Monolayers on Mesoporous Supports (SAMMS)

Journal Article · Mon Nov 01 04:00:00 EST 2004 · Journal of Materials Chemistry, 14(22):3356-3363

DOI:https://doi.org/10.1039/b408181a· OSTI ID:859430

Fryxell, Glen E; Wu, Hong; Lin, Yuehe; Shaw, Wendy J; Birnbaum, Jerome C; Linehan, John C; Nie, Zimin; Kemner, Kenneth M; Kelly, Shelley

Through the marriage of mesoporous ceramics with self-assembled monolayer chemistry, the genesis of a powerful new class of environmental sorbent materials has been realized. By coating the mesoporous ceramic backbone with a monolayer terminated with a lanthanide-specific ligand, it is possible to couple high lanthanide binding affinity with the high loading capacity (resulting from the extremely high surface area of the support). This lanthanide-specific ligand field is created by pairing a “hard” anionic Lewis base with a suitable synergistic ligand, in a favorable chelating geometry. Details of the synthesis, characterization, lanthanide binding studies, binding kinetics, competition experiments and sorbent regeneration studies are summarized.

• Research Organization: Pacific Northwest National Laboratory (PNNL), Richland, WA (US), Environmental Molecular Sciences Laboratory (EMSL)
• Sponsoring Organization: USDOE
• DOE Contract Number: AC05-76RL01830
• OSTI ID: 859430
• Report Number(s): PNNL-SA-39211; 6899; KP1301020
• Journal Information: Journal of Materials Chemistry, 14(22):3356-3363, Journal Name: Journal of Materials Chemistry, 14(22):3356-3363
• Country of Publication: United States
• Language: English

Related Subjects

Environmental Molecular Sciences Laboratory