PVP-Assisted of α-Fe2O3/ZnO Nanosized Prepared by Simple Solgel Synthesis

Fe2O3/ZnO nanocomposites were synthesized by simple solgel method via iron chloride hexahydrate (FeCl3.6H2O) and zinc sulfate heptahydrate (ZnSo4.7H2O) as precursor in the presence of Polyvinylpyrrolidone (PVP) surfactant. The samples were characterized by high resolution transmission electron microscopy (HRTEM), field effect scanning electron microscopy (FESEM), X-ray diffraction (XRD), vibration sampling magnetometer (VSM), and Fourier transform infrared spectroscopy (FTIR) in different temperature. The XRD results showed that Fe-doped ZnO was single-phased with a hexagonal wurtzite structure ZnO and spinel phase of rhombohedral α-Fe2O3. The particle size of as-prepared sample was in the range size of 20-45 nm and annealed one was around 40 nm in diameter at 500 oC for 3 hours. The TEM studies showed the rod-like shaped nanosized particles. The sharp peaks in FTIR spectrum determined the element of Fe-Zn nanoparticles. The result of magnetic measurements showed coercive field and saturation magnetism around 2.3 kG and 0.034 emu/g respectively, for as-prepared samples.

کلیدواژه ها:

α-Fe2O3 ، nanoparticles ، PVP ، synthesis ، Solgel