Synthesis and characterization of ZnO@Fe3O4 composite nanostructures by using hydrothermal synthesis method

In this study, ZnO@Fe3O4composite nanostructures were synthesized using the hydrothermal method. X-ray diffraction analysis was performed for structural characterization of obtained with addition Fe3O4at different ratios, and no impurity peaks found. Scanning electron microscope (SEM) transmission (TEM) used morphological imaging. It understood that ZnO nanoparticles decorated around Fe3O4in morphology nanostructures. Fe, Zn, O detected in elemental analysis. Energy band gaps ZnO@Fe3O4nanocomposite structures from absorbance data collected by use UV-VIS spectrometer. The gap values calculated to be range 2-2.1 eV. Magnetic properties determined a vibrating sample magnetometer (VSM), 3.76 emu/g 7.96 found depending on Fe3O4content. Although these show limited ferromagnetic property, they are important optoelectronic medical imaging applications due advanced optical electronic ZnO.