The effect of reaction temperature and times on structural and magnetic properties of Zn0.25Fe2.75O4

Department of Physics, Faculty of Science, Gebze Technical University, 41400 Kocaeli, Turkey

E-mail: nurcandogan80@gmail.com

Manuscript received online 20 October 2020, revised and accepted 31 October 2020

The zinc doped iron oxide nanoparticles were successfully synthesized by hydrothermal process at temperatures of 150 and 180ºC for time of 6, 12, and 22 h. The average crystallite sizes of the nanoparticles were in the range of 14–24 nm with small size distribution. SEM analysis confirmed that all of Zn_0.25Fe_2.75O₄ nanoparticles show a spherical form. The reaction temperature rise up to 180ºC led to the increasing of crystallinity of nanoparticles. All nanoparticles showed a superparamagnetic behaviour at room temperature.