Effect of iron oxide nanoparticles functionalization by citrate analyzed using Mössbauer spectroscopy

Michael V. Ushakov, M. H. Sousa, Paulo C. Morais, Ernő Kuzmann, Vladimir A. Semionkin, Michael I. Oshtrakh

Research output: Contribution to journalArticle

Abstract

Comparison of the Mössbauer spectra of the as-prepared native iron oxide nanoparticles (IONs) and the citrate-functionalized IONs demonstrates differences in the spectral shapes at room temperature and variations of the 57Fe hyperfine parameters at 80 K. The observed differences are claimed to result from capping the IONs with citrate, thus decreasing the particle-particle interaction while promoting interaction of the outer atomic layers of the IONs with the surface molecular coating.

Original languageEnglish
Article number27
JournalHyperfine Interactions
Volume241
Issue number1
DOIs
Publication statusPublished - Dec 1 2020

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Keywords

  • Hyperfine parameters
  • Iron oxide nanoparticles
  • Mössbauer spectroscopy
  • Surface functionalization

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Nuclear and High Energy Physics
  • Condensed Matter Physics
  • Physical and Theoretical Chemistry

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