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

作者：Yuan Xiao Ling; Lu Chun Mei; Zhu Wan Chun; Jia Ming Jun; Liu Gang^*; Wang Zhen Lue; Zhang Wen Xiang

来源：Acta Physico - Chimica Sinica, 2011, 27(5): 1181-1187.

• Nanoporous carbon
• Adsorption
• Ethylenediamine
• Mercury ion
• Alkalinity

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.

• 出版日期2011-5
• 单位吉林大学