Lanthanide selective sorbents: Self-assembled monolayers on mesoporous supports (SAMMS)

Glen E. Fryxell, Hong Wu, Yuehe Lin, Wendy J. Shaw, Jerome C. Birnbaum, John Linehan, Zimin Nie, Ken Kemner, Shelly Kelly

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Abstract

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-selective 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-selective 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.

Original languageEnglish
Pages (from-to)3356-3363
Number of pages8
JournalJournal of Materials Chemistry
Volume14
Issue number22
DOIs
Publication statusPublished - Nov 21 2004

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ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Materials Chemistry
  • Materials Science(all)

Cite this

Fryxell, G. E., Wu, H., Lin, Y., Shaw, W. J., Birnbaum, J. C., Linehan, J., ... Kelly, S. (2004). Lanthanide selective sorbents: Self-assembled monolayers on mesoporous supports (SAMMS). Journal of Materials Chemistry, 14(22), 3356-3363. https://doi.org/10.1039/b408181a