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The strontium hexaferrite fibers (SrFe12O19) were synthesized by electrospinning using iron (III) nitrate, strontium nitrate and polyacrylonitrile (PAN) as precursors. The as-spun fibers were calcined at 900, 1000 and 1100 ºC for 8 h in air. The as-spun and calcined fibers were characterized by thermogravimetric-differential thermal analysis (TG-DTA), X-ray diffraction (XRD), Field emission scanning electron microscopy (FE-SEM), Fourier transform infrared spectroscopy (FT-IR) and UV-Visible diffuse reflectance spectroscopy (UV-Vis DRS). The TG-DTA results showed that completely decomposition of PAN and formation of the crystallization occurred above 500 ºC. The XRD and FT-IR results confirmed the crystalline phases of SrFe12O19 and impurity phase of -Fe2O3 were detected. FE-SEM images showed that the SrFe12O19 fibers had porosity and rough surface with diameter about 500 – 1200 nm. UV-Vis DRS spectra showed that SrFe12O19 fibers exhibit the absorption bands in range of ultraviolet and visible light regions. The band gap energy of SrFe12O19 fibers is about 2.00 eV in different temperatures.
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