Formation and characterization of iron oxide nanoparticles loaded on self-organized TiO2 nanotubes |
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| Authors: | Y.Q. Liang S.L. Zhu X.J. Yang |
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| Affiliation: | a School of Materials Science and Engineering, Tianjin University, 92 Weijin Road, Tianjin 300072, China
b Tianjin Key Laboratory of Composite and Functional Materials, Tianjin 300072, China |
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| Abstract: | The iron oxide nanoparticles were loaded onto self-organized TiO2 nanotube layers grown by anodization of Ti in fluoride containing electrolytes. The nanoparticles were obtained by electrodepositing method in glycerol/water/FeCl3·6H2O electrolytes at room temperature. The X-ray diffraction (XRD), high-resolution transmission electron microscopy (HRTEM) and X-ray photoelectron spectroscopy (XPS) measurements showed that the nanoparticles consisted of iron nanocrystalline (Fe) and magnetite (Fe3O4). The hematite (α-Fe2O3) structure was obtained by annealing in air at 450 °C. The growth mechanism of the nanoparticles and their morphology were also described. Furthermore, the nanoparticles exhibited good ferromagnetic properties at room temperature. |
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| Keywords: | TiO2 nanotubes Iron oxide Electrodepositing Magnetic Growth mechanism |
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