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JOURNAL OF MECHANICAL ENGINEERING  > 2020  >  33(3): 371-375.
Ju-wen Gu, Yong Bai, Song-bai Qiu, Qian Zhang, Tie-jun Wang. Facile Green Synthesis of Magnetic Fe$ _\textbf{3} $C@C Nanocomposite using Natural Magnetite[J]. JOURNAL OF MECHANICAL ENGINEERING, 2020, 33(3): 371-375. doi: 10.1063/1674-0068/cjcp1907142
Citation: Ju-wen Gu, Yong Bai, Song-bai Qiu, Qian Zhang, Tie-jun Wang. Facile Green Synthesis of Magnetic Fe$ _\textbf{3} $C@C Nanocomposite using Natural Magnetite[J]. JOURNAL OF MECHANICAL ENGINEERING, 2020, 33(3): 371-375. doi: 10.1063/1674-0068/cjcp1907142
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Facile Green Synthesis of Magnetic Fe$ _\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: 23 Jul 2019
  • Accepted Date: 10 Sep 2019
  • Publish Date: 17 Mar 2020
    Abstract
  • 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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