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Synthesis and dye separation performance of ferromagnetic hierarchical porous carbon

Carbon, ISSN: 0008-6223, Vol: 46, Issue: 12, Page: 1593-1599
2008
  • 87
    Citations
  • 0
    Usage
  • 34
    Captures
  • 0
    Mentions
  • 0
    Social Media
Metric Options:   Counts1 Year3 Year

Metrics Details

  • Citations
    87
    • Citation Indexes
      87
  • Captures
    34

Article Description

Ferromagnetic hierarchical porous carbon (FHPC) with nickel particles embedded in the hierarchical porous carbon skeleton was synthesized. The hierarchical macro–mesoporous skeleton was formed by dissolving a salt template of Na 2 CO 3 and the ferromagnetic nickel particles were produced by in situ carbothermal reduction of nickel oxide. The saturation magnetization, remnant magnetization and coercive force of FHPC are 11.3 emu g −1, 2.3 emu g −1 and 55.7 Oe. The ferromagnetic property enables the magnetic separation of the FHPC from water. The surface chemical environments of the FHPC consist of different oxygen functional groups, like –OH, >COO and >CO groups, as well as a trace amount of aliphatic species of –CH 3 or -CH2- structures. Dye separation performance of the FHPC was investigated using methylene orange, and the adsorption capacity was 0.16 mg m −2 with the adsorption kinetics constant of 2.2 m 2 mg −1 min −1, which is superior to that of magnetic carbon spheres.

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