Investigation of Optical and Structural Properties of Iron Oxide Nanostructures Synthesized by Co-Precipitation Method

In this research, iron oxide nanostructures have been successfully synthesized using the coprecipitation method. The results of structural studies using X-ray diffraction (XRD) analysis showed that the synthesized samples have a simple cubic structure. The lattice parameter of these synthesized nanostructures was calculated with the aid of the Rietveld refinement method. It was found that the lattice parameter is about 8.388 Å. Electron microscopy images (SEM) showed that the samples have sheet likes shapes. From SEM images, it was found that the synthesized nanosheets' thickness was about 33 nm. The optical properties of the samples were also studied using ultraviolet-visible spectroscopy. These studies showed that the samples have a broad absorption peak of about 350 nm. The samples were irradiated with a beam with a wavelength of 205 nm to measure the emission spectra. There were several emission peaks observed in the emission spectra of samples. The highest emission peaks were observed at 482nm and 527 nm, respectively.