High saturation magnetization of γ-Fe2O3 nano-particles by a facile one-step synthesis approach

نویسندگان

  • Derang Cao
  • Hao Li
  • Lining Pan
  • Jianan Li
  • Xicheng Wang
  • Panpan Jing
  • Xiaohong Cheng
  • Wenjie Wang
  • Jianbo Wang
  • Qingfang Liu
چکیده

We have demonstrated the synthesis of γ-Fe2O3 nano-particles through a facile and novel calcination process in the air. There is no pH regulation, gas atmosphere, additive, centrifugation or other complicated procedures during the preparing process. A detailed formation process of the nano-particles is proposed, and DMF as a polar solvent may slower the reaction process of calcination. The structures, morphologies, and magnetic properties of γ-Fe2O3 nano-particles were investigated systematically, and the pure γ-Fe2O3 nano-particles obtained at 200 °C display uniform morphology good magnetic property. The saturation magnetization of obtained pure γ-Fe2O3 is about 74 emu/g, which is comparable with bulk material (76 emu/g) and larger than other results. In addition, the photocatalytic activity for degradation of methylene blue is also studied, which shows proper photocatalytic activity.

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عنوان ژورنال:

دوره 6  شماره 

صفحات  -

تاریخ انتشار 2016