4.6 Article

Extraction of rare earth elements using magnetite@MOF composites

Journal

JOURNAL OF MATERIALS CHEMISTRY A
Volume 6, Issue 38, Pages 18438-18443

Publisher

ROYAL SOC CHEMISTRY
DOI: 10.1039/c8ta04750b

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Funding

  1. Department of Energy, Geothermal Technologies Office
  2. Department of Energy's Office of Biological and Environmental Research
  3. U.S. Department of Energy, Battelle Memorial Institute [DE-AC05-76RL01830]
  4. Office of Science, Office of Basic Energy Sciences, of the U.S. Department of Energy [DE-AC02-05CH11231]

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Magnetic core-shell microspheres were developed to extract rare earth elements (REEs) from aqueous and brine solutions with up to 99.99% removal efficiency. The shell, composed of a thermally and chemically stable functionalized metal-organic framework (MOF), is grown over a synthesized Fe3O4 magnetic core (magnetite@MOF). The composite particles can be removed from the mixture under an applied magnetic field, offering a practical, and efficient REE-removal process.

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