Coprecipitation synthesis of zinc ferrit (FE₂O₃/ZNO) nanoparticles prepared by CTAB surfactant

Abstract

Zinc ferrite (Fe₂O₃/ZnO) nanocomposites were successfully synthesized by simple co-precipitation method via iron (III) nitrate 9-hydrate (Fe(NO₃)₃.9H₂O) and zinc nitrate hexahydrate (Zn(NO₃)₂.6H₂O) as precursor in the presence of cetyltrimethylammonium bromide (CTAB) surfactant. The samples were characterized by high resolution transmission electron microscopy (HRTEM), field effect scanning electron microscopy (FESEM), X-ray diffraction (XRD), X-ray florescence (XRF) 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 30-40 nm and annealed one was around 37 nm in diameter at 500 ^oC for 3 hours. The TEMstudies showed the rod-like shaped nanosized particles. The sharp peaks in FTIR spectrum determined the element of Fe-Zn nanoparticles. The result of XRF analysis showed the peaks of iron and ferrite elements with less Cl, F and Ni impurities.

Keywords: Fe₂O₃/ZnO; CTAB; chemical synthesis; coprecipitation