Characteristics of zinc ferrite nanoparticles (ZnFe 2O4) from natural iron ore

Synthesis of zinc ferrite nanoparticles (ZnFe2O4) of iron ore taken in Tanah Laut has been done. The Synthesis uses the coprecipitation method. ZnFe2O4 nanoparticles were characterized using X-Ray Diffraction (XRD), Transmission Electron Microscopy (TEM), Vibrating Sample Magnetometer (VSM), Fourier Transform Infrared (FTIR), and UV-Vis Spectrophotometer. Using XRD, it was found that ZnFe2O4 has an average crystal size of 8.80 nm. ZnFe2O4 is superparamagnetic because it has a narrow loop area of about 10 kOe.emu/g. Using FTIR, the Zn-O and Fe-O groups were obtained at wave numbers 556.58 and 598.87 cm�1 . The absorption spectrum is in the range of UV light (200 nm) to visible light (600 nm) and at wavelength of 288 nm is observed absorption.