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Interlayered colored iron compounds prepared by reactions of nanoirons with bidentate chelating ligands in laponite

  • Journal of the Korean Crystal Growth and Crystal Technology
  • Abbr : J. Korean Cryst. Growth Cryst. Technol.
  • 2021, 31(2), pp.69-72
  • DOI : 10.6111/JKCGCT.2021.31.2.069
  • Publisher : The Korea Association Of Crystal Growth, Inc.
  • Research Area : Engineering > Materials Science and Engineering
  • Received : March 8, 2021
  • Accepted : March 31, 2021
  • Published : April 30, 2021

Dong Hwan Kim 1 Kim Youhyuk 1

1단국대학교

Accredited

ABSTRACT

The reaction of ammonium ferric sulfate with sodium borohydride in laponite sol yields nanoiron colloidalsolution. This solution in air forms transparent yellow brown solution. The resulting solution reacts with bidentate chelatingligands. The reaction products are characterized by UV-Vis absorption spectroscopy and X-ray diffraction. All compoundsshow metal to ligand charge transfer band in the region of 400~650 nm in UV-Vis absorption spectra. This indicates theformation of iron-ligand complex by air oxidation of nanoiron. Also, XRD patterns exhibit that the iron-ligand complex isintercalated in the interlayer of laponite.

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