Formation of Fe(0)-Nanoparticles via Reduction of Fe(II) Compounds by Amino Acids and Their Subsequent Oxidation to Iron Oxides. (19th September 2012)

• Record Type: Journal Article
• Authors: Klačanová, K.; Fodran, P.; Šimon, P.; Rapta, P.; Boča, R.; Jorík, V.; Miglierini, M.; Kolek, E.; Čaplovič, L'.
• Other Names: Portalone Gustavo Academic Editor.
• Is Part Of: Journal of chemistry. Volume 2013(2013)
• Publication Date: 2012-09-19
• Subjects: Chemistry -- Periodicals; 540.5
• DOI: 10.1155/2013/961629
• Languages: English
• ISSNs: 2090-9063

Abstract

Abstract : Iron nanoparticles were prepared by the reduction of central Fe(II) ion in the coordination compounds with amino acid ligands. The anion of the amino acid used as a ligand acted as the reducing agent. Conditions for the reduction were very mild; the temperature did not exceed 52°C, and the optimum pH was between 9.5 and 9.7. The metal iron precipitated as a mirror on the flask or as a colloid in water. Identification of the product was carried out by measuring UV/VIS spectra of the iron nanoparticles in water. The iron nanoparticles were oxidized by oxygen yielding a mixture of iron oxides. Oxidation of Fe(0) to Fe(II) took several seconds under air. The size and properties of iron oxide nanoparticles were studied by UV/VIS, TEM investigation, RTG diffractometry, Mössbauer spectroscopy, magnetometry, thermogravimetry, and GC/MS.