Acta Phys. -Chim. Sin. ›› 2013, Vol. 29 ›› Issue (03): 590-596.doi: 10.3866/PKU.WHXB201212123

• CATALYSIS AND SURFACE SCIENCE • Previous Articles     Next Articles

Synthesis of Magnetically Graphitic Mesoporous Carbon from Hard Templates and Its Application in the Adsorption Treatment of Traditional Chinese Medicine Wastewater

HONG Zhou-Qin, LI Jin-Xia, ZHANG Fang, ZHOU Li-Hui   

  1. Research Center of Analysis and Test, East China University of Science and Technology, Shanghai 200237, P. R. China
  • Received:2012-10-02 Revised:2012-12-12 Published:2013-02-25
  • Supported by:

    The project was supported by the Research Center of Analysis and Test of East China University of Science and Technology, China.

Abstract:

Magnetically graphitic mesoporous carbon (Fe/GMC) was synthesized, using SBA-15 as a template and sucrose as a carbon source, with the assistance of ferric nitrate impregnation. The properties of the products were characterized using powder X-ray diffraction (XRD), transmission electron microscopy (TEM), N2 adsorption-desorption (BET), and Raman spectroscopy. The impregnation of Fe3+ promoted the partial graphitization of ordered mesoporous carbon at low temperature (900℃), and resulted in the production of magnetic Fe3O4 particles. These complex materials possessed an ordered mesoporous pore structure, large surface area, and magnetic properties. The adsorption properties of Fe/GMC for traditional Chinese medicine wastewater were studied in detail using UV-Vis spectroscopy. The results showed that the Fe/GMC materials displayed rapid adsorption, and had a high adsorption capacity. Fe/GMC could be used as an absorbent for the highly efficient removal of pigments from Carthamus tinctorius flowers via rapid solid-liquid magnetic separation.

Key words: SBA-15, Hard template, Mesoporous carbon, Graphitization, Magnetic Fe3O4

MSC2000: 

  • O647