"Shaped Co<sup>2+</sup> doped TiO<sub>2</sub> nanocrystals synthesized " by M. VRANJEŠ, J. KULJANIN JAKOVLJEVIĆ et al.

Article Title

Shaped Co²⁺ doped TiO₂ nanocrystals synthesized from nanotubular precursor: Structure and ferromagnetic behavior

Authors

M. VRANJEŠ, Vinča Institute of Nuclear Sciences, University of Belgrade, P.O. Box 522, 11001 Belgrade, Serbia
J. KULJANIN JAKOVLJEVIĆ, Vinča Institute of Nuclear Sciences, University of Belgrade, P.O. Box 522, 11001 Belgrade, Serbia
Z. KONSTANTINOVIĆ, Center for Solid State Physics and New Materials, Institute of Physics Belgrade, University of Belgrade, Pregrevica 118, 11080 Belgrade, Serbia
A. POMAR, Institut de Ciència de Materials de Barcelona, CSIC, Campus UAB, 08193 Bellaterra, Spain
M. STOILJKOVIĆ, Vinča Institute of Nuclear Sciences, University of Belgrade, P.O. Box 522, 11001 Belgrade, Serbia
M. MITRIĆ, Vinča Institute of Nuclear Sciences, University of Belgrade, P.O. Box 522, 11001 Belgrade, Serbia
T. RADETIĆ, Faculty of Technology and Metallurgy, University of Belgrade, Karnegijeva 4, 11120 Belgrade, Serbia
Z. ŠAPONJIĆ, Vinča Institute of Nuclear Sciences, University of Belgrade, P.O. Box 522, 11001 Belgrade, Serbia

Keywords

hydrothermal synthesis, X-ray diffraction (XRD), transmission electron microscopy (TEM), doped TiO2, magnetic properties

Abstract

Co²⁺ doped TiO₂ nanocrystals were synthetized by a hydrothermal treatment procedure applied to precursor dispersion of titania nanotubes and Co²⁺ ions. Mixture of polygonal and prolate spheroid-like nanocrystals was obtained. The results of X-ray diffraction (XRD) analysis showed that resulted nanocrystals retain anatase crystal phase for both dopant concentrations (1.69 and 2.5 at%), but the crystal lattice parameters were affected. Reflection spectra revealed altered optical properties compared to bare TiO₂. Room temperature ferromagnetic ordering with saturation magnetic moment in the range of 0.001-0.002 μB/Co was observed for both measured films made of Co²⁺ doped TiO₂ nanocrystals.

DOI

https://doi.org/10.1007/s40145-017-0233-5

Publisher

Tsinghua University Press

Recommended Citation

M. VRANJEŠ, J. KULJANIN JAKOVLJEVIĆ, Z. KONSTANTINOVIĆ et al. Shaped Co2+ doped TiO2 nanocrystals synthesized from nanotubular precursor: Structure and ferromagnetic behavior. Journal of Advanced Ceramics 2017, 6(3): 220-229.

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