Reduced Magnetism in Core–Shell Magnetite@MOF Composites

The magnetic susceptibility of synthesized magnetite (Fe3O4) microspheres was found to decline after the growth of a metal–organic framework (MOF) shell on the magnetite core. Detailed structural analysis of the core–shell particles using scanning electron microscopy, transmission electron microscop...

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Veröffentlicht in:	Nano letters 2017-11, Vol.17 (11), p.6968-6973
Hauptverfasser:	Elsaidi, Sameh K, Sinnwell, Michael A, Banerjee, Debasis, Devaraj, Arun, Kukkadapu, Ravi K, Droubay, Timothy C, Nie, Zimin, Kovarik, Libor, Vijayakumar, Murugesan, Manandhar, Sandeep, Nandasiri, Manjula, McGrail, B. Peter, Thallapally, Praveen K
Format:	Artikel
Sprache:	eng
Schlagworte:	core shell nano particles Environmental Molecular Sciences Laboratory MOFs NANOSCIENCE AND NANOTECHNOLOGY rare earth element extraction
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Beschreibung
Zusammenfassung:	The magnetic susceptibility of synthesized magnetite (Fe3O4) microspheres was found to decline after the growth of a metal–organic framework (MOF) shell on the magnetite core. Detailed structural analysis of the core–shell particles using scanning electron microscopy, transmission electron microscopy, atom probe tomography, and57Fe–Mössbauer spectroscopy suggests that the distribution of MOF precursors inside the magnetic core resulted in the oxidation of the iron oxide core.
ISSN:	1530-6984 1530-6992
DOI:	10.1021/acs.nanolett.7b03451