1. bookVolume 60 (2015): Issue 1 (March 2015)
Journal Details
License
Format
Journal
eISSN
1508-5791
First Published
25 Mar 2014
Publication timeframe
4 times per year
Languages
English
access type Open Access

Influence of annealing temperature on structural and magnetic properties of MnFe2O4 nanoparticles

Published Online: 12 Mar 2015
Volume & Issue: Volume 60 (2015) - Issue 1 (March 2015)
Page range: 137 - 141
Received: 18 Jun 2014
Accepted: 18 Nov 2014
Journal Details
License
Format
Journal
eISSN
1508-5791
First Published
25 Mar 2014
Publication timeframe
4 times per year
Languages
English
Abstract

Nanoparticles of manganese ferrite were obtained by the impregnation of highly ordered mesoporous MCM-41 silica support. The investigated sample contained 20% wt. Fe. The obtained nanocrystallites were strongly dispersed in silica matrix and their size was about 2 nm. The sample annealing at 500°C led to increase of particle size to about 5 nm. The Mössbauer spectroscopy investigations performed at room temperature show on occurrence of MnFe2O4 nanoparticle in superparamagnetic state for the sample annealed in all temperatures. The coexistence of superparamagnetic and ferromagnetic phase was observed at liquid nitrogen temperature. The sample annealed at 400°C and 500°C has bigger manganese ferrite particle and better crystallized structure. One can assign them the discrete hyperfine magnetic field components.

Keywords

1. Kresge, C. T., Leonowicz, M. E., Roth, W. J., Vartuli, J. C., & Beck, J. S. (1992). Ordered mesoporous molecular sieves synthesized by a liquid–crystal template mechanism. Nature, 359, 710–712.10.1038/359710a0Search in Google Scholar

2. Wingen, A., Anastasievic, N., Hollnagel, A., Werner, D., & Schuth, F. (2000). Fe-MCM-41 as a catalyst for sulfur dioxide oxidation in highly concentrated gases. J. Catal., 193, 248–254. DOI: 10.1006/jcat.2000.2896.10.1006/jcat.2000.2896Search in Google Scholar

3. Ivashchenko, N. A., Gac, W., Tertykh, V. A., Yanishpolskii, V. V., Khainakov, S. A., Dikhtiarenko, A. V., Pasieczna-Patkowska, A., & Zawadzki, W. (2012). Preparation, characterization and catalytic activity of palladium nanoparticles embedded in the mesoporous silica matrices. World J. Nano Sci. Eng., 2, 117–125. http://dx.doi.org/10.4236/wjnse.2012.23015.Search in Google Scholar

4. Sahoo, B., Sahu, S. K., Nayak, S., Dharaa, D., & Pramanik, P. (2012). Fabrication of magnetic mesoporous manganese ferrite nanocomposites as efficient catalyst for degradation of dye pollutants. Catal. Sci. Technol., 2, 1367–1374. DOI: 10.1039/c2cy20026k.10.1039/c2cy20026kSearch in Google Scholar

5. Kumar, C. S. S. R., & Mohammad, F. (2011). Magnetic nanomaterials for hyperthermia-based therapy and controlled drug delivery. Adv. Drug Deliv. Rev., 63, 789–808. DOI: 10.1016/j.addr.2011.03.008.10.1016/j.addr.2011.03.008Search in Google Scholar

6. Na, B. H. B., Song, I. C., & Hyeon, T. (2009). Inorganic nanoparticles for MRI contrast agents. Adv. Mater., 21, 2133–2148. DOI: 10.1002/adma.200802366.10.1002/adma.200802366Search in Google Scholar

7. Grün, M., Unger, K. K., Matsumoto, A., & Tsutsumi, K. (1997). Ordered microporous/mesoporous MCM-41 type absorbents: novel routes in synthesis, product, characterisation and specification. In B. McEnaney, J. T. Mays, J. Rouquerol, J. Rodriguez-Reynoso, K. S. W. Sing & K. K. Unger (Eds.), Characterization of porous solids IV (pp. 81–89). London: The Royal Society of Chemistry.Search in Google Scholar

8. Williamson, G. K., & Hall, W. H. (1953). X-ray line broadening from filed aluminium and wolfram. Acta Metall., 1, 22–31.10.1016/0001-6160(53)90006-6Search in Google Scholar

9. Dhiman, R. L., Taneja, S. P., & Reddy, V. R. (2008). Preparation and characterization of manganese ferrite aluminates. Adv. Condens. Matter Phys., 2008, 1–7. DOI: 10.1155/2008/703479.10.1155/2008/703479Search in Google Scholar

10. Li, J., Yuan, H., Li, G., Liu, Y., & Leng, J. (2010). Cation distribution dependence of magnetic properties of sol-gel prepared MnFe2O4 spinel ferrite nanoparticles. J. Magn. Magn. Mater., 322, 3396–3400. DOI: 10.1016/j.jmmm.2010.06.035.10.1016/j.jmmm.2010.06.035Search in Google Scholar

11. Mørup, S., Topøse, T., & Lipka, J. (1976). Modified theory for Mössbauer spectra of superparamagnetic particles: application to Fe3O4. J. Phys., 12(37), C6-287–C6-289. http://dx.doi.org/10.1051/jphyscol:1976658.Search in Google Scholar

12. Kamali, M. S., Ericsson, T., & Wäppling, R. (2006) Characterization of iron oxide nanoparticles by Mössbauer spectroscopy. Thin Solid Films, 515, 721–723. DOI: 10.1016/j.tsf.2005.12.180.10.1016/j.tsf.2005.12.180Search in Google Scholar

Recommended articles from Trend MD

Plan your remote conference with Sciendo