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Zinc ferrite (Fe 2 O 3 /ZnO) nanocomposites were successfully synthesized by simple co-precipitation method via iron (III) nitrate 9-hydrate (Fe(NO 3 ) 3 .9H 2 O) and zinc nitrate hexahydrate (Zn(NO 3 ) 2 .6H 2 O) 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-Fe 2 O 3 . 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 o C 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: Fe 2 O 3 /ZnO; CTAB; chemical synthesis; coprecipitation

Coprecipitation synthesis of zinc ferrit (FE<sub>2</sub>O<sub>3</sub>/ZNO) nanoparticles prepared by CTAB surfactant