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高等学校化学研究 ›› 2003, Vol. 19 ›› Issue (3): 366-369.

• Articles • 上一篇    下一篇

Studies on Adsorption Behavior and Mechanism of Copper(Ⅱ) onto Amino Methylene Phosphonic Acid Resin

XIONG Chun-hua1, WANG Yong-jiang2, SHI Lin-mei2   

  1. 1. College of Food Science, Biotechnology and Environmental Engineering, Hangzhou University of Commerce, Hangzhou 310025, P. R. China;
    2. Department of Chemistry, Lishui Teachers College, Lishui 323000, P. R. China
  • 收稿日期:2002-10-02 出版日期:2003-08-24 发布日期:2011-08-06
  • 基金资助:

    Supported by Zhejiang Provincial Natural Science Foundation of China(No.200072).

Studies on Adsorption Behavior and Mechanism of Copper(Ⅱ) onto Amino Methylene Phosphonic Acid Resin

XIONG Chun-hua1, WANG Yong-jiang2, SHI Lin-mei2   

  1. 1. College of Food Science, Biotechnology and Environmental Engineering, Hangzhou University of Commerce, Hangzhou 310025, P. R. China;
    2. Department of Chemistry, Lishui Teachers College, Lishui 323000, P. R. China
  • Received:2002-10-02 Online:2003-08-24 Published:2011-08-06
  • Supported by:

    Supported by Zhejiang Provincial Natural Science Foundation of China(No.200072).

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被引次数

39

摘要： The adsorption behavior and the mechanism of a novel chelate resin, amino methylene phosphonic acid resin(APAR) for Cu(Ⅱ) were investigated. Cu(Ⅱ) was quantitatively adsorbed by APAR in the medium of pH=4.09. The statically saturated adsorption capacity is 181 mg/(g resin). Cu(Ⅱ) adsorbed on APAR can be eluted by 1.0-3.0 mol/L HCl. The rate constant is k298=5.58×10-5 s-1. The adsorption of Cu(Ⅱ) on APAR follows the Freundlich isotherm. The ΔH of the adsorption is 3.91 kJ/mol. The apparent activation energy is Ea=21.4 kJ/mol. The coordination molar ratio of APAR to Cu(Ⅱ) is 1/1. It is shown that the nitrogen and the oxygen atoms in the functional group of APAR coordinate to Cu(Ⅱ).

关键词: Amino methylene phosphonic acid resin, Copper, Adsorption, Mechanism

Abstract: The adsorption behavior and the mechanism of a novel chelate resin, amino methylene phosphonic acid resin(APAR) for Cu(Ⅱ) were investigated. Cu(Ⅱ) was quantitatively adsorbed by APAR in the medium of pH=4.09. The statically saturated adsorption capacity is 181 mg/(g resin). Cu(Ⅱ) adsorbed on APAR can be eluted by 1.0-3.0 mol/L HCl. The rate constant is k298=5.58×10-5 s-1. The adsorption of Cu(Ⅱ) on APAR follows the Freundlich isotherm. The ΔH of the adsorption is 3.91 kJ/mol. The apparent activation energy is Ea=21.4 kJ/mol. The coordination molar ratio of APAR to Cu(Ⅱ) is 1/1. It is shown that the nitrogen and the oxygen atoms in the functional group of APAR coordinate to Cu(Ⅱ).

Key words: Amino methylene phosphonic acid resin, Copper, Adsorption, Mechanism