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Published: 2014-06-30
Abstract Views: 123
Views PDF: 45
DOI: https://doi.org/10.53747/jnst.v4i2.223
Issue
Vol. 4 No. 2 (2014)
Section
Articles
How to Cite
Tran , M. Q., Nguyen , V. B., Nguyen , Q. L., & Hoang , D. S. (2014). Characterization of the magnetic Fe₃O₄ nanoparticles prepared by gamma irradiation . Nuclear Science and Technology, 4(2), 15-20. https://doi.org/10.53747/jnst.v4i2.223

Characterization of the magnetic Fe₃O₄ nanoparticles prepared by gamma irradiation

Tran Minh Quynh1, Nguyen Van Binh1, Nguyen Quang Long1, Hoang Dang Sang1
1 Hanoi Irradiation Center, Vietnam Atomic Energy Institute, No.5, Minh Khai, Tu Liem, Hanoi

Main Article Content

Abstract

In this study, gamma irradiation treatment has been applied for preparation of the magnetic nanoparticles from iron(III) chloride (FeCl3). Structure of the resulting black powders were characterized with X-ray diffraction (XRD). The results revealed that the products prepared by gamma irradiation were mainly magnetite (Fe3O4) instead of maghemite (Fe2O3). The basic characteristics of the magnetite nanoparticles such as their particle size and magnetic properties were investigated using scanning electron microscope (SEM) and vibrating sample magnetometer (VSM). The nanoparticles showed superparamagnetism with the saturated magnetization of about 48.6 emu/g. Influences of radiation conditions on radiation preparation of magnetite nanoparticles and their properties were also discussed. Reaction yield increased, while average diameter of the obtained nanoparticles reduced from 46 to 17 nm depended on the absorbed dose

Article Details

Keywords

gamma irradiation, nanoparticles, magnetization, X-ray diffraction

References

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