Abstract
In this research a simple method has been presented to coat magnetic nanoparticles with TiO2. Firstly, Fe3O4 nanoparticles have been prepared using a co-precipitation method. Thereafter, in order to achieve particles with better dispersibility, the surface of Fe3O4 nanoparticles has been modified with the help of trisodium citrate as stabilizer. Afterward, Fe3O4 / TiO2 core-shell nanocomposites were synthesized by the Stöber method. The prepared samples were characterized by means of X-ray diffraction (XRD), transmission electron microscopy (TEM), Fourier transform infrared (FTIR) spectroscopy, energy dispersive X-ray spectroscopy (EDS) analysis and vibrating sample magnetometer (VSM). XRD results show the formation of two compounds of crystalline magnetite and brookite-type TiO2 . TEM images confirmed the formation of their core-shell structure. The surface modification of magnetite nanoparticles using trisodium citrate was confirmed by FTIR analysis. Magnetic studies also indicated that prepared core-shells exhibit superparamagnetic behavior at room temperature. Combining this property with the photocatalytic ability of TiO2 could result in a synthesized nanocomposite with different medical and environmental applications.
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References
Sh. Xuan et al., J. Phys. Chem. C 113, 553 (2009).
X. Chen, S.S. Mao, Chem. Rev. 107, 2891 (2007).
D. Beydoun et al., J. Phys. Chem. B 104, 4387 (2000).
Q. He et al., Opt. Mater. 31, 380 (2008).
H. Yan et al., Mater. Chem. Phys. 113, 46 (2009).
Y. Weia et al., Proc. Eng. 27, 632 (2012).
J. Liu, Y. Bin, M. Matsuo, J. Phys. Chem. C 116, 134 (2012).
J.H. Kim, Ch.H. Lee, S.K. Lee, Bull. Korean Chem. Soc. 30, 1305 (2009).
R.Y. Hong et al., Mater. Res. Bull. 43, 2457 (2008).
W. Cai, J. Wan, J. Colloid Interf. Sci. 305, 366 (2007).
R.Y. Hong et al., Appl. Surf. Sci. 255, 3485 (2009).
M.H.R. Farimani et al., Physica E 53, 207 (2013).
C. Cheng et al., J. Mater. Chem. 19, 8782 (2009).
F. Mahtab et al., Adv. Funct. Mater. 21, 1733 (2011).
P. Allia et al., Phy. Rev. B 64, 1 (2001).
Y.W. Jun, J.W. Seo, J. Cheon, Acc. Chem. Res. 41, 179 (2008).
Z.L. Liu et al., J. Mater. Synth. Process. 10, 83 (2002).
T. Ozkaya et al., J. Alloys Comp. 472, 18 (2009).
D.R. Coronado et al., Nanotechnology 19, 145605 (2008).
A.D. Paola, M. Bellardita, L. Palmisano, Catalysts 3, 36 (2013).
H.G. Yang, H.Ch. Zen, J. Phys. Chem. 108, 3492 (2004).
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Behrad, F., Helmi Rashid Farimani, M., Shahtahmasebi, N. et al. Synthesis and characterization of Fe3O4/TiO2 magnetic and photocatalyst bifunctional core-shell with superparamagnetic performance. Eur. Phys. J. Plus 130, 144 (2015). https://doi.org/10.1140/epjp/i2015-15144-y
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DOI: https://doi.org/10.1140/epjp/i2015-15144-y