Volume 33 Issue 3
Jul.  2020
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Ju-wen Gu, Yong Bai, Song-bai Qiu, Qian Zhang, Tie-jun Wang. Facile Green Synthesis of Magnetic Fe$ _\textbf{3} $C@C Nanocomposite using Natural Magnetite[J]. Chinese Journal of Chemical Physics , 2020, 33(3): 371-375. doi: 10.1063/1674-0068/cjcp1907142
Citation: Ju-wen Gu, Yong Bai, Song-bai Qiu, Qian Zhang, Tie-jun Wang. Facile Green Synthesis of Magnetic Fe$ _\textbf{3} $C@C Nanocomposite using Natural Magnetite[J]. Chinese Journal of Chemical Physics , 2020, 33(3): 371-375. doi: 10.1063/1674-0068/cjcp1907142

Facile Green Synthesis of Magnetic Fe$ _\textbf{3} $C@C Nanocomposite using Natural Magnetite

doi: 10.1063/1674-0068/cjcp1907142
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  • Corresponding author: Song-bai Qiu, E-mail:qiusb@gdut.edu.cn; Tie-jun Wang, E-mail:tjwang@gdut.edu.cn
  • Received Date: 2019-07-23
  • Accepted Date: 2019-09-10
  • Publish Date: 2020-06-27
  • One simple and environmental friendly synthesis strategy for preparing low-cost magnetic Fe$ _3 $C@C materials has been facilely developed using a modified sol-gel approach, wherein natural magnetite acted as the iron source. A chelating polycarboxylic acid such as citric acid (CA) was employed as the carbon source, and it dissolved Fe very effectively, Fe$ _3 $O$ _4 $ and natural magnetite to composite an iron-citrate complex with the assistance of ammonium hydroxide. The core-shell structure of the as-prepared nanocomposites was formed directly by high-temperature pyrolysis. The Fe$ _3 $C@C materials exhibited superparamagnetic properties (38.09 emu/mg), suggesting potential applications in biomedicine, environment, absorption, catalysis, etc.

     

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