Development of Immobilized Metal Ion Affinity Gel : Adsorption and Desorption Properties of Metal Ions Onto and From Chelating Sepharose Fast Flow Gel
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概要
- 論文の詳細を見る
Immobilized metal ion affinity gel is a regenerable carrier used in separation technique on the basis of a reversible interaction between the gel and a specific transition metal ion as a ligand. An experimental investigation concerning the development of an immobilized metal ion affinity gel and the adsorption and desorption properties of metal ions was carried out by using a Chelating Sepharose Fast Flow gel and divalent transition metal ions of Co2+ and Ni2+. In order to characterize and predict metal ion adsorption and desorption completely, one seeks the information about the adsorption isotherms and the necessary physical parameters for adsorption and desorption along with their mechanisms. In this experimental investigation it is considered that the two –CH2COOH groups in the gel combine with metal ions stoichiometrically and the adsorption and desorption mechanisms of the metal ions onto and from the gel are theoretically analyzed on the basis of adsorption and desorption equilibriums and the dissociation equilibrium. Consequently, the model equations, which allow quantitative consideration of the adsorption and desorption mechanisms, can be derived as a function of the concentration of hydrogen ions at the outer aqueous phase. The values of adsorption effectiveness factor were calculated as 0.87 for Co2+ and 0.90 for Ni2+. Finally, the gel adsorption isotherm and the adsorption, desorption equilibriums of metal ions can be explained fairly well by these models.
- 社団法人 化学工学会の論文
- 2007-12-01
著者
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Uddin Mohammad
Course Of Material Systems Engineering And Life Science Graduate School Of Science And Engineering U
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AHMED Shaikh
Course of Material Systems Engineering and Life Science, Graduate School of Science and Engineering,
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TAKANO Maki
Department of Material Systems Engineering and Life Science, Faculty of Engineering, University of T
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AKAKABE Setsuko
Department of Material Systems Engineering and Life Science, Faculty of Engineering, University of T
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HOSHINO Kazuhiro
Section of Functional Molecule Production Systems, Field of Nano and Functional Material Sciences, G
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MOROHASHI Shoichi
Section of Functional Molecule Production Systems, Field of Nano and Functional Material Sciences, G
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Hoshino Kazuhiro
Department Of Materials Systems Engineering And Life Science Toyama University
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Takano Maki
Department Of Material Systems Engineering And Life Science Faculty Of Engineering University Of Toy
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Ahmed Shaikh
Course Of Material Systems Engineering And Life Science Graduate School Of Science And Engineering U
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Takaoka Masashi
Department Of System Engineering Of Materials And Life Science Toyama University
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Akakabe Setsuko
Section Of Functional Molecule Production Systems Field Of Nano And Functional Material Sciences Gra
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Hoshino Kazuhiro
Section Of Functional Molecule Production Systems Field Of Nano And Functional Material Sciences Gra
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Morohashi S
Depertment Of System Engineering Of Materials And Life Science Toyama University
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Morohashi Shoichi
Section Of Functional Molecule Production Systems Field Of Nano And Functional Material Sciences Gra
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Akakabe Setsuko
Department of Chemical and Biochemical Engineering, Toyama University
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