Effect of pH on the Structural and Magnetic Properties of Magnetite Nanoparticles Synthesised by Co-Precipitation

Wegdan Ramadan; Marwa Kareem; Béatrice Hannoyer; Shanta Saha

doi:10.4028/www.scientific.net/AMR.324.129

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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 324Effect of pH on the Structural and Magnetic...

Effect of pH on the Structural and Magnetic Properties of Magnetite Nanoparticles Synthesised by Co-Precipitation

Abstract:

Magnetite, Fe3O4, nanoparticles were synthesized using co-precipitation aqueous method at room temperature and at different pH, from 8 to 12.5. The pH value was found to influence greatly the resulting phases and has no significant effect on the particle size. In all cases, magnetite was found to be the main phase but the contribution of Goethite phase was identified clearly with the increase in pH. Significant reduction in saturation magnetization was evident. Structural and magnetic properties of the nanoparticles were examined using; XRD, TEM, Raman Spectroscopy and SQUID.

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Periodical:

Advanced Materials Research (Volume 324)

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129-132

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.324.129

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Online since:

August 2011

Authors:

Wegdan Ramadan, Marwa Kareem, Béatrice Hannoyer, Shanta Saha

Keywords:

Co-Precipitation, Goethite Phase, Magnetic Nanoparticles, pH

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