Mössbauer spectroscopic investigation of the sorption of iron by polyether-type polyurethane-foam sorbents

Štefan Palágyi, T. Braun, Z. Homonnay, A. Vértes

Research output: Contribution to journalArticle

21 Citations (Scopus)

Abstract

The results of a study on the nature of the iron species sorbed by polyether-type open-cell polyurethane (PU) foam membranes are presented. The study has included freshly prepared anionic 57FeIII-halo complexes and 57Fe(SCN)3, in addition to the cationic 57FeII-phenanthroline complex. Conclusions concerning the most probable nature of the sorbed species have been drawn from the comparison of Mössbauer spectra forfrozen Fe-PU foam complexes with the spectra for corresponding iron-containing frozen aqueous solutions and extracts in suitable organic solvents. For FeIII compounds, diethyl ether, and for the FeII complex, acetone, pentyl alcohol and nitrobenzene were used as organic solvents. The spectra were recorded at 80 K and evaluated to obtain isomer shifts, quadrupole splittings and internal magnetic fields for different iron species.

Original languageEnglish
Pages (from-to)1537-1541
Number of pages5
JournalThe Analyst
Volume117
Issue number10
Publication statusPublished - 1992

Fingerprint

Polyethers
Sorbents
foam
Polyurethanes
Foams
Sorption
Iron
sorption
iron
Organic solvents
Pentanols
Nitrobenzene
Phenanthrolines
Magnetic Fields
Acetone
acetone
ether
Isomers
Ether
alcohol

Keywords

  • Iron
  • Mössbauer spectroscopy
  • Polyurethane foam membrane
  • Polyurethane foam sorbent
  • Sorption mechanism

ASJC Scopus subject areas

  • Analytical Chemistry

Cite this

Mössbauer spectroscopic investigation of the sorption of iron by polyether-type polyurethane-foam sorbents. / Palágyi, Štefan; Braun, T.; Homonnay, Z.; Vértes, A.

In: The Analyst, Vol. 117, No. 10, 1992, p. 1537-1541.

Research output: Contribution to journalArticle

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