Characterization of nanomagnetites co-precipitated in inert gas atmosphere for plant nutrition
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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 57Fe Mössbauer spectroscopy, electron microscopy and PXRD measurements. The presence of considerable FeII contributions were indicated by 57Fe 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 FeIII 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 FeII content of the nanomagnetites.
Keywords57Fe Mössbauer spectroscopy Iron-oxide nanoparticles Inert gas atmosphere synthesis Plant nutrition Fe(II) oxidation state
The financial supports from NKFIH-OTKA (No K115913 and K115784) and Hungarian-Croatian S&T (No TÉT_16-1-2016-0002) grants are acknowledged.
- 5.Brown, J.C., Jolley, V.D.: Biochem. Physiol. Activity 11(6–11), 1077–1096 (1988)Google Scholar
- 7.Peternele, W.S., Fuentes, V.M., Fascineli, M.L., Silva, J.R., Silva, R.C., Lucci, C.M., Azevedo, R.B.: Journal of Nanomaterials, vol. 2014 (2014)Google Scholar
- 14.da Silva, S.W., Guilherme, L.R., de Oliveira, A.C., Garg, V.K., Matos Rodrigues, P.A., Huamaní Coaquira, J.A., da Silva Ferreira, Q., Ferreira de Melo, G.H., Lengyel, A., Szalay, R., Homonnay, Z., Klencsár, Z., Tolnai, Gy., Kuzmann, E.: J. Radioanal. Nucl. Chem. 312, 111 (2017)CrossRefGoogle Scholar