Characterization of nanomagnetites co-precipitated in inert gas atmosphere for plant nutrition

• Published in: Hyperfine interactions Vol. 239; no. 1; pp. 1 - 7
• Main Authors: Lengyel, A., Homonnay, Z., Kovács, K., Klencsár, Z., Németh, Sz, Szalay, R., Kis, V., Fodor, F., Solti, Á., Ristic, M., Music, S., Kuzmann, E.
• Format: Journal Article
• Language: English
• Published: Cham Springer International Publishing 01.12.2018; Springer Nature B.V
• Subjects: 27–31 May 2018; Atomic; Condensed Matter Physics; Coprecipitation; Croatia; Hadrons; Heavy Ions; Iron 57; Molecular; Mossbauer spectroscopy; Nanoparticles; Nuclear Physics; Nutrition; Optical and Plasma Physics; Organic chemistry; Physics; Physics and Astronomy; Proceedings of the 4th Mediterranean Conference on the Applications of the Mössbauer Effect (MECAME 2018); Rare gases; Spectrum analysis; Surfaces and Interfaces; Thin Films; Zadar; Iron-oxide nanoparticles; Fe Mössbauer spectroscopy; Inert gas atmosphere synthesis; Plant nutrition; Fe(II) oxidation state
• ISSN: 0304-3843; 1572-9540
• DOI: 10.1007/s10751-018-1516-0

Iron-oxide nanoparticles were prepared by chemical coprecipitation method in inert gas atmosphere and also in air atmosphere in order to use them as possible nutrition source for plants. The samples were characterized by 57 Fe Mössbauer spectroscopy, electron microscopy and PXRD measurements. The presence of considerable Fe II contributions were indicated by 57 Fe Mössbauer spectra. Furthermore TEM and XRD reflected nanomagnetite in washed and lyophilized samples prepared in inert gas atmosphere while the samples prepared in air atmosphere contained much higher amount of Fe III than characteristic of magnetite. In the case of samples prepared in inert gas, it was also shown that the immediate washing after the coprecipitation has a crucial influence on the Fe II content of the nanomagnetites.