Layered metal sulfides capture uranium from seawater

Manolis J. Manos, Mercouri G Kanatzidis

Research output: Contribution to journalArticle

237 Citations (Scopus)

Abstract

Uranium is the main source for nuclear energy but also one of the most toxic heavy metals. The current methods for uranium removal from water present limitations, such as narrow pH operating range, limited tolerance to high salt concentrations, or/and high cost. We show here that a layered sulfide ion exchanger K2MnSn2S6 (KMS-1) overcomes these limitations and is exceptionally capable in selectively and rapidly sequestering high (ppm) as well as trace (ppb) quantities of UO22+ under a variety of conditions, including seawater. KMS-1 can efficiently absorb the naturally occurring U traces in seawater samples. The results presented here reveal the exceptional potential of sulfide-based ion-exchangers for remediating of uranium-containing wastes and groundwater and for extracting uranium from the sea.

Original languageEnglish
Pages (from-to)16441-16446
Number of pages6
JournalJournal of the American Chemical Society
Volume134
Issue number39
DOIs
Publication statusPublished - Oct 3 2012

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Uranium
Seawater
Sulfides
Metals
Ion exchangers
Ions
Nuclear Energy
Poisons
Groundwater
Heavy Metals
Oceans and Seas
Nuclear energy
Heavy metals
Salts
Costs and Cost Analysis
Water
Costs

ASJC Scopus subject areas

  • Chemistry(all)
  • Catalysis
  • Biochemistry
  • Colloid and Surface Chemistry

Cite this

Layered metal sulfides capture uranium from seawater. / Manos, Manolis J.; Kanatzidis, Mercouri G.

In: Journal of the American Chemical Society, Vol. 134, No. 39, 03.10.2012, p. 16441-16446.

Research output: Contribution to journalArticle

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