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新型多功能螯合树脂的合成及对水中Cd(II)离子的吸附特征

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王佳佳, 马慧敏, 张田林. 新型多功能螯合树脂的合成及对水中Cd(II)离子的吸附特征[J]. 环境工程学报, 2013, 7(4): 1378-1382.
引用本文: 王佳佳, 马慧敏, 张田林. 新型多功能螯合树脂的合成及对水中Cd(II)离子的吸附特征[J]. 环境工程学报, 2013, 7(4): 1378-1382.
shu
Wang Jiajia, Ma Huimin, Zhang Tianlin. Synthesis of multifunctional chelating resin and its adsorption properties for Cd(II) in water[J]. Chinese Journal of Environmental Engineering, 2013, 7(4): 1378-1382.
Citation: Wang Jiajia, Ma Huimin, Zhang Tianlin. Synthesis of multifunctional chelating resin and its adsorption properties for Cd(II) in water[J]. Chinese Journal of Environmental Engineering, 2013, 7(4): 1378-1382.
shu

新型多功能螯合树脂的合成及对水中Cd(II)离子的吸附特征

  • 1.

    中国矿业大学化工学院,徐州 221116

  • 2.

    淮海工学院化学工程学院,连云港 222005

  • 基金项目:

    江苏省高校自然科学研究重大资助项目(11KJA430008)

  • 中图分类号: X703.1

Synthesis of multifunctional chelating resin and its adsorption properties for Cd(II) in water

  • 1.

    School of Chemical Engineering & Technology, China University of Mining and Technology, Xuzhou 221116, China

  • 2.

    Institute of Chemical Engineering, Huaihai Institute of Technology, Lianyungang 222005, China

  • Fund Project:

摘要

  • 摘要: 研究了使用交联聚苯乙烯叔胺树脂为前驱体与5-氯甲基水杨醛经搅拌反应合成季铵盐型多功能螯合树脂及其对水中Cd(II)离子的吸附特征。结果表明,水杨醛单元成功地连接到树脂表面,其含量为1.89 mmol/g。通过浓度、pH值、时间等条件的变化对吸附性能进行研究,得到了25℃时Cd(II)的最佳吸附条件:Cd(II)离子浓度为600 μg/L,pH=6.0,吸附达平衡的时间约为4 min,树脂的最大吸附量为200.0 μg/g,吸附符合Langmuir等温式。pH=6.0时,对重金属离子Zn(II)、Cu(II)、Ni(II)、Hg(II)、Pb(II)和Cr(Ⅲ) 吸附能力强但选择性较差。
    Abstract: Multifunctional chelating resin was prepared via the reaction between cross-linked polystyrene-dimethylamine resin and 5-cholromethylsalicylaldehyde under stirring conditions. Adsorption properties for Cd(II) were described. Results showed that salicylaldehyde groups were successfully grafted on resin surface and the content of salicylaldehyde groups in the grafted resin was 1.89 mmol/g. The adsorptivity was discussed by the change of temperature, pH and time. The best adsorption conditions at 25℃ were obtained: the concentration of Cd(II) was 600 μg/L, pH=6.0,the equilibrium adsorption time was 4min, the maximum adsorption capacity was 200.0 μg/g and the adsorption fit best with the Langmuir model. It had a good adsorption properties for Zn(II), Cu(II), Ni(II), Hg(II), Pb(II) and Cr(III), but a poor adsorption selectivity at pH=6.0.
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  • 收稿日期:  2012-04-17
  • 刊出日期:  2013-04-09
王佳佳, 马慧敏, 张田林. 新型多功能螯合树脂的合成及对水中Cd(II)离子的吸附特征[J]. 环境工程学报, 2013, 7(4): 1378-1382.
引用本文: 王佳佳, 马慧敏, 张田林. 新型多功能螯合树脂的合成及对水中Cd(II)离子的吸附特征[J]. 环境工程学报, 2013, 7(4): 1378-1382.
shu
Wang Jiajia, Ma Huimin, Zhang Tianlin. Synthesis of multifunctional chelating resin and its adsorption properties for Cd(II) in water[J]. Chinese Journal of Environmental Engineering, 2013, 7(4): 1378-1382.
Citation: Wang Jiajia, Ma Huimin, Zhang Tianlin. Synthesis of multifunctional chelating resin and its adsorption properties for Cd(II) in water[J]. Chinese Journal of Environmental Engineering, 2013, 7(4): 1378-1382.
shu

新型多功能螯合树脂的合成及对水中Cd(II)离子的吸附特征

  • 1.  中国矿业大学化工学院,徐州 221116
  • 2.  淮海工学院化学工程学院,连云港 222005
  • 收稿日期:  2012-04-17
基金项目:

江苏省高校自然科学研究重大资助项目(11KJA430008)

摘要: 研究了使用交联聚苯乙烯叔胺树脂为前驱体与5-氯甲基水杨醛经搅拌反应合成季铵盐型多功能螯合树脂及其对水中Cd(II)离子的吸附特征。结果表明,水杨醛单元成功地连接到树脂表面,其含量为1.89 mmol/g。通过浓度、pH值、时间等条件的变化对吸附性能进行研究,得到了25℃时Cd(II)的最佳吸附条件:Cd(II)离子浓度为600 μg/L,pH=6.0,吸附达平衡的时间约为4 min,树脂的最大吸附量为200.0 μg/g,吸附符合Langmuir等温式。pH=6.0时,对重金属离子Zn(II)、Cu(II)、Ni(II)、Hg(II)、Pb(II)和Cr(Ⅲ) 吸附能力强但选择性较差。

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