Diyala Journal For Pure Science
Scientific Refereed Journal Published By College of Science - University of Diyala
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Diyala Journal For Pure Sciences DJPS
ISRA Impact Factor:3.715
P- ISSN:2222-8373, E-ISSN:2518-9255
Volume 14, Issue 3 , July . 2018
Effect of Au doping on the Magnetic Properties of Fe3O4 NPs Prepared via Photolysis and co-Precipitation Methods
Zaid Hamid Mahmoud
Year: 2018, Volume: 14, Issue: 3
Pages: 137 - 147, DOI: http://dx.doi.org/10.24237/djps.1403.426A
In this research, Fe3O4 without Au was fabricated via photolysis method, then Au was doped together with concentration of 3 wt.% using co–precipitation method. The samples of Fe3O4 without/with Au doping were characterized utilize XRD, EDX, and TEM while the magnetic properties of the samples were determined utilizing VSM. The results showed that the resistance and the magnetic values of the samples decrease with Au doping indicating semiconducting behavior. The saturation magnetization (MS) of the sample without doping (90.23 emu/g) is much greater than that (63.55 emu/g) of the sample with doping.
Keywords: Doping, magnetite, nanoparticles, photolysis, co-precipitation