Adsorption characteristics of metal ions on chitosan chemically modified by D-galactose

被引：14

作者：

Kondo, K

Sumi, H

Matsumoto, M

机构：

[1] Dept. of Chem. Eng. and Mat. Science, Doshisha University, Tanabe

来源：

SEPARATION SCIENCE AND TECHNOLOGY | 1996年 / 31卷 / 12期

关键词：

adsorption; chemically modified chitosan; metal; galactose;

D O I：

10.1080/01496399608000724

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The adsorption characteristics of metal ions on chitosan chemically modified by D-galactose were examined. The pH dependency on the distribution ratio was found to be affected by the valency of the metal ion, and the apparent adsorption equilibrium constants of the metal ions were determined. The order of adsorption of the metal ions is Ga > In > Nd > Eu for the trivalent metal ions and Cu > Ni > Co for the divalent metal ions. It is believed that amino and hydroxyl groups in the chitosan act as a chelating ligand.

引用

页码：1771 / 1775

页数：5

共 18 条

[1] SELECTIVE ABSORPTION OF PALLADIUM(II), PLATINUM(IV), AND MERCURY(II) ON A NEW CHITOSAN DERIVATIVE POSSESSING PYRIDYL GROUP [J].