Acta Phys. -Chim. Sin. ›› 2011, Vol. 27 ›› Issue (05): 1181-1187.doi: 10.3866/PKU.WHXB20110519

• CATALYSIS AND SURFACE SCIENCE • Previous Articles     Next Articles

Adsorption Performance of Hg(II) Ions on Amine-Modified Nanoporous Carbon Materials

YUAN Xiao-Ling1, LU Chun-Mei2, ZHU Wan-Chun1, JIA Ming-Jun1, LIU Gang1, WANG Zhen-Lü1, ZHANG Wen-Xiang1   

  1. 1. Key Laboratory of Surface and Interface Chemistry of Jilin Province, College of Chemistry, Jilin Uinversity, Changchun 130012, P. R. China;
    2. Jilin Entry-Exit Inspection and Quarantine Bureau, Changchun 130062, P. R. China
  • Received:2011-01-19 Revised:2011-03-22 Published:2011-04-28
  • Contact: LIU Gang, ZHANG Wen-Xiang;
  • Supported by:

    The project was supported by the National Natural Science Foundation of China (20773050, 21003059) and Ph.D. Programs Foundation of Ministry of Education of China (20090061120024).


The adsorption performance of nanoporous carbon (NC) and ethylenediamine-modified nanoporous carbon (NC-EDA) toward Hg2+ ions was investigated in an aqueous solution. The NC material exhibited a relatively high adsorption capacity for Hg2+ ions, and the adsorption capacity was improved significantly by ethylenediamine modification. After thermal-treatment at 873 K, the adsorption capacity of the NC-EDA material was still relatively high. Based on various characterization results, we propose that the presence of abundant functional groups (i.e., -COOH, -OH) on the surface of the NC materials is beneficial for the introduction of a large number of amino functional groups resulting in the presence of abundant basic N-containing species on the surface of the NC materials. These basic species can interact with mercury ions and thus significantly improve the adsorption capacity of the carbon material.

Key words: Nanoporous carbon, Adsorption, Ethylenediamine, Mercury ion, Alkalinity


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