The impact of synthesis temperature on magnetite nanoparticles size synthesized by co-precipitation method

Ferrite nanoparticles synthesized by co-precipitation method depend mostly on parameters such as synthesis temperature, pH of the suspension, and initial molar concentration. We reported the size and morphology of nanoparticles magnetite (Fe3O4) synthesized by co- precipitation method with variation of temperature in the range between 25°C and 80°C in order to investigate the effect of synthesis temperature to its size and morphology. The nanoparticle forms are spherical, with band-gap values were 1.76 eV, 1.20 eV, 1.27 eV and 1.14 eV at synthesis temperatures of 25°C, 40°C 60°C and 80°C respectively. It was found that the smallest of magnetite nanoparticles was 10.14 nm for the sample synthesized at 25°C. (paper)