One-Step Synthesis and High-Efficiency Decoloration of Multifunctional Porous-C/Fe3O4 Nanospheres by Using a Sandwich-Structured Precursor with Three Roles

Authors

  • Li-Zu Wang,

    1. Department of Chemistry, Key Laboratory of Yangtze River Water Environment, Ministry of Education, Tongji University, 1239 Siping Road, Shanghai 200092 (P. R. China)
    Search for more papers by this author
  • Prof. Ming Wen,

    Corresponding author
    1. Department of Chemistry, Key Laboratory of Yangtze River Water Environment, Ministry of Education, Tongji University, 1239 Siping Road, Shanghai 200092 (P. R. China)
    • Department of Chemistry, Key Laboratory of Yangtze River Water Environment, Ministry of Education, Tongji University, 1239 Siping Road, Shanghai 200092 (P. R. China)
    Search for more papers by this author
  • Dr. Pin-Shi Yuan,

    1. Department of Chemistry, Key Laboratory of Yangtze River Water Environment, Ministry of Education, Tongji University, 1239 Siping Road, Shanghai 200092 (P. R. China)
    Search for more papers by this author
  • Linyi Zhou,

    1. Department of Chemistry, Key Laboratory of Yangtze River Water Environment, Ministry of Education, Tongji University, 1239 Siping Road, Shanghai 200092 (P. R. China)
    Search for more papers by this author
  • Prof. Qing-Sheng Wu

    Corresponding author
    1. Department of Chemistry, Key Laboratory of Yangtze River Water Environment, Ministry of Education, Tongji University, 1239 Siping Road, Shanghai 200092 (P. R. China)
    2. Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Fudan University, Shanghai 200433, China
    3. State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian 116024, China
    • Department of Chemistry, Key Laboratory of Yangtze River Water Environment, Ministry of Education, Tongji University, 1239 Siping Road, Shanghai 200092 (P. R. China)
    Search for more papers by this author

Abstract

A new strategy for the one-step synthesis of multifunctional porous-C/Fe3O4 nanospheres has been successfully developed by using ferrocenyl formic acid as a precursor. Based on its special structure, this sandwich structural precursor of ferrocenyl formic acid plays three roles in the synthesis process: it simultaneously serves as the carbon and iron source, templating agent, and pore-forming agent. The proposed synthesis is corroborated by characterization through SEM, TEM, XRD, FTIR spectroscopy, Raman spectroscopy, BET surface area measurements, BJH distributions, and vibrating sample magnetometry. The average diameter of as-synthesized porous-C/Fe3O4 nanospheres is about 400 nm. Because of the porous structure of carbon nanospheres and its surface plasmon resonance with attached Fe3O4 nanoparticles, the as-synthesized porous-C/Fe3O4 nanospheres exhibit high activity toward the decoloration of rhodamine B. In addition, the resultant composites present ferromagnetic behavior with a magnetization saturation of 13.76 emu g−1, can be easily separated and recycled by an external magnet field for use in a variety of applications.

Ancillary