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By using a new method, 60CoΥ-ray irradiation, Fe3O4 magnetic nano-particles were successfully synthesized at room temperature under ambient pressure. The structure, morphology and magnetic properties of these nano-particles were characterized by X-ray diffraction (XRD), transmission electron microscope (TEM) and vibrating sample magnetometer (VSM), respectively. The radiation formation mechanism was also discussed. The results show that the absorbed dose can greatly influence the structure, morphology and magnetic properties of the products. XRD and TEM studies show that the product prepared byΥ-ray irradiation (10 kGy) is pure Fe3O4 phase and the mean diameter of these nano-particles is about 21 nm. The Fe3O4 nano-particles synthesized byΥ-ray irradiation (10 kGy) are mainly in small cubic shape and the size uniformity of these particles is good.
By using a new method, 60 nano-particle irradiation, Fe3O4 magnetic nano-particles were successfully synthesized at room temperature under ambient pressure. The structure, morphology and magnetic properties of these nano-particle were characterized by X-ray diffraction (XRD) The results show that the absorbed dose can greatly influence the structure, morphology and magnetic properties of the products. XRD and TEM studies show that The product prepared by γ-ray irradiation (10 kGy) is pure Fe3O4 phase and the mean diameter of these nano-particles is about 21 nm. The Fe3O4 nano-particle synthesized by γ-ray irradiation (10 kGy) are mainly in small cubic shape and the size uniformity of these particles is good.