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螯合淀粉衍生物对铜离子吸附性能的研究

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相波, 李义久, 倪亚明. 螯合淀粉衍生物对铜离子吸附性能的研究[J]. 环境化学, 2004, 23(2): 193-197.
引用本文: 相波, 李义久, 倪亚明. 螯合淀粉衍生物对铜离子吸附性能的研究[J]. 环境化学, 2004, 23(2): 193-197.
shu
XIANG Bo, LI Yi-jiu, NI Ya-ming . ADSORPTION PROPERTIES OF CHELATING STARCH DERIVATIVES FOR COPPER[J]. Environmental Chemistry, 2004, 23(2): 193-197.
Citation: XIANG Bo, LI Yi-jiu, NI Ya-ming . ADSORPTION PROPERTIES OF CHELATING STARCH DERIVATIVES FOR COPPER[J]. Environmental Chemistry, 2004, 23(2): 193-197.
shu

螯合淀粉衍生物对铜离子吸附性能的研究

  • 1.

    同济大学化学系, 上海, 200092

ADSORPTION PROPERTIES OF CHELATING STARCH DERIVATIVES FOR COPPER

  • 1.

    Department of Chemistry, Tongji University, Shanghai, 200092

  • 摘要: 以玉米淀粉为原料,经交联、间接醚化、胺化反应合成了交联氨基淀粉(CAS),CAS进一步与CS2亲核加成反应,合成了带有二硫代氨基甲酸(DTC)基团的DTC改性淀粉(DTCS).研究了CAS和DTCS吸附铜离子的动力学行为,结果表明,二者对铜的吸附均符合Freundlich等温式.298K时,CAS和DTCS的吸附速率常数分别为k=1.758h-1和k=10.32h-1.根据对吸附行为的研究得到了表观动力学方程和热力学参数,并藉助IR和元素分析及吸附平衡研究了吸附机理.
    Abstract: Starting frorn corn starch,dithiocarbamate modified starch was prepared by the reactions of crosslinking,indirectly etherified,amination with ethylenediamine,and nucleophilic addition with carbon disulfide,sequentially.The two products,cross-linded amino starch(CAS)and dithiocarbamate modified starch(DTCS)were efficient to asdorption for copper ion with characteristic of Langmuir and Freundlich isothermal equation.At 298K,the adsorption rate constants for CAS and DTCS was k=1.758h-1 and k=10.32h-1,respectively.Apparent kinetic equation and some thermodynamic parameters were got in this paper.Characteristics of CAS and DTCS and adsorption mechanism were studied by IR,elemental analysis and adsorption equilibrium experiments.
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    [4] Hosny W M,Hadi A K A,Saied H EI et al.,Metal Chelates with Some Cellulose Derivatives.Part Ⅲ.Synthesis and Structural Chemistry of Nickel(Ⅱ)and Copper(Ⅱ)Complexes with Carboxymethyl Cellulose[J].Polym.Int.,1995,37(2):93-96
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  • 收稿日期:  2004-04-28
相波, 李义久, 倪亚明. 螯合淀粉衍生物对铜离子吸附性能的研究[J]. 环境化学, 2004, 23(2): 193-197.
引用本文: 相波, 李义久, 倪亚明. 螯合淀粉衍生物对铜离子吸附性能的研究[J]. 环境化学, 2004, 23(2): 193-197.
shu
XIANG Bo, LI Yi-jiu, NI Ya-ming . ADSORPTION PROPERTIES OF CHELATING STARCH DERIVATIVES FOR COPPER[J]. Environmental Chemistry, 2004, 23(2): 193-197.
Citation: XIANG Bo, LI Yi-jiu, NI Ya-ming . ADSORPTION PROPERTIES OF CHELATING STARCH DERIVATIVES FOR COPPER[J]. Environmental Chemistry, 2004, 23(2): 193-197.
shu

螯合淀粉衍生物对铜离子吸附性能的研究

  • 1. 同济大学化学系, 上海, 200092
  • 收稿日期:  2004-04-28

摘要: 以玉米淀粉为原料,经交联、间接醚化、胺化反应合成了交联氨基淀粉(CAS),CAS进一步与CS2亲核加成反应,合成了带有二硫代氨基甲酸(DTC)基团的DTC改性淀粉(DTCS).研究了CAS和DTCS吸附铜离子的动力学行为,结果表明,二者对铜的吸附均符合Freundlich等温式.298K时,CAS和DTCS的吸附速率常数分别为k=1.758h-1和k=10.32h-1.根据对吸附行为的研究得到了表观动力学方程和热力学参数,并藉助IR和元素分析及吸附平衡研究了吸附机理.

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