Transformation mechanism of magnetite nanoparticles

• Autorzy: Khan U. S. , Amanullah , Manan A. , Khan N. , Mahmood A. , Rahim A.

Identyfikatory

DOI

10.1515/msp-2015-0037

• Języki publikacji: EN

Abstrakty

EN

A simple oxidation synthesis route was developed for producing magnetite nanoparticles with controlled size and morphology. Investigation of oxidation process of the produced magnetite nanoparticles (NP) was performed after synthesis under different temperatures. The phase transformation of synthetic magnetite nanoparticles into maghemite and, henceforth, to hematite nanoparticles at different temperatures under dry oxidation has been studied. The natural magnetite particles were directly transformed to hematite particles at comparatively lower temperature, thus, maghemite phase was bypassed. The phase structures, morphologies and particle sizes of the produced magnetic nanoparticles have been investigated by X-ray diffraction (XRD), transmission electron microscopy (TEM), energy dispersive X-ray spectrometry (EDX) and BET surface area analysis.

Słowa kluczowe

EN

transformation; magnetite; maghemite; hematite; nanoparticles

• Wydawca: De Gruyter
• Czasopismo: Materials Science Poland
• Rocznik: 2015
• Tom: Vol. 33, No. 2
• Strony: 278--285
• Opis fizyczny: Bibliogr. 17 poz., rys., tab.

Twórcy

autor

Khan U. S.

• Department of Physics, University of Science and Technology Bannu, Pakistan

autor

Amanullah

• Department of Physics, University of Science and Technology Bannu, Pakistan

autor

Manan A.

• Department of Physics, University of Science and Technology Bannu, Pakistan

autor

Khan N.

• Department of Physics, Kohat University of Science and Technology, Kohat, Pakistan

autor

Mahmood A.

• Department of Physics, University of Science and Technology Bannu, Pakistan

autor

Rahim A.

• Interdisciplinary Research Centre in Biomedical Materials (IRCBM), COMSATS Institute of Information Technology, Lahore, Pakistan

Bibliografia

• [1] XIANGYUAN L., JUN D., JHON W., J. Mater. Res., 14 (1999), 3355.
• [2] JUNGK H.O., FELDMANN C., J. Mater. Res., 15 (2000), 2244.
• [3] HSIN-YU L., YU-WEN C., WI-JYE W., J. Nanopart. Res., 7 (2005), 249.
• [4] WOO K., HONG J., CHOI S., LEE H.W., AHN J.P., KIM C.S., LEE S.W., Chem. Mater., 16 (2004), 2814.
• [5] YU-LUN C., MING-WEI L., JIA-QI L., LI-JEN C., ZHONG L.W., Adv. Funct. Mater., 16 (2006), 2243.
• [6] XU Y.Y., RUI X. F., FU Y.Y., ZHANG H., Chem. Phys. Lett., 410 (2005), 36.
• [7] SATYAWATI S.J., PRAJAKTA R.P., MASHAV S.N., BAKARE P.P., J. Nanopart. Res., 8 (2006), 635.
• [8] CORNELL R.M., SCHWERTMANN U., The Iron Oxides: Structure, Properties, Reactions, Occurrences and Uses, Wiley-VCH, Weinheim, 2003.
• [9] MONTES-HERNANDEZ G., PIRONON J., VILLIERAS F., J. Colloid Interf. Sci, 303 (2006), 472.
• [10] KAZUHIKO K., NOAKO O., TATSUO I., Langmuir, 18 (2002), 2895.
• [11] MAJEWSKI P., Maghemite, in: Encyclopaedia Britannica Online, http://search.eb.com/eb/ article-9049986, 2008.
• [12] THAPA D., PALKAR V.R., KURUP M.B., MALIK S.K., Mater. Lett., 58 (2004), 2692.
• [13] CORR S.A., GUN’KO Y.K., DOUVALIS A.P., VENKATESAN M., GUNNING R.D., J. Mater. Chem., 14 (2004), 944.
• [14] CHEN T., XU H., XIE Q., CHEN J., JI J., LU H., Earth Planet Sc. Lett., 240 (2005), 790.
• [15] TANG J., MYERS M., BOSNICK K.A., BRUS L.E., J. Phys. Chem, 107 (2003), 7501.
• [16] Human Respiratory Tract Model for Radiological Protection. ICRP Publication 66, Ann. ICRP, 24 (1 – 3) (1994), 1.
• [17] SUGIMOTO T., Adv. Colloid. Interfac., 28 (1987), 65.