Immobilization of Two Azacrown Ethers on Chitosan: Evaluation of Selective Extraction Ability Toward Cu(II) and Ni(II)

被引：20

作者：

Malkondu, Sait ^{[1
]}

Kocak, Ahmet ^{[1
]}

Yilmaz, Mustafa ^{[1
]}

机构：

[1] Selcuk Univ, Dept Chem, Fac Sci & Arts, TR-42075 Konya, Turkey

来源：

JOURNAL OF MACROMOLECULAR SCIENCE PART A-PURE AND APPLIED CHEMISTRY | 2009年 / 46卷 / 08期

关键词：

Chitosan; modification; heavy metal; macrocyclics; ion binding; solid-liquid extraction; ADSORPTION PROPERTIES; METAL-IONS; REMOVAL; DERIVATIVES; ADSORBENTS; SORPTION; CHITIN; COPPER; SHELL;

D O I：

10.1080/10601320903004467

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Two Schiff base-type chitosan-azacrown ethers were prepared by a reaction of chitosan (CTS) with N-(4'-formylphenyl)aza-crown ethers, and they were converted to secondary-amino derivatives by the reduction of CTS-azacrown ethers with sodium borohydride. Their structures were confirmed by elemental analysis, infrared spectra and thermogravimetric analysis. The ability of these adsorbents to extract Cu(II) and Ni(II) ions from water by a solid-liquid extraction process was studied. The effects of adsorbent amount, contact time and pH on the adsorption of CTS-azacrown ethers were investigated. The extraction results showed that CTS-azacrown ethers had good sorption capacities for Cu(II) ions in the coexistence of Ni(II) ions.

引用

页码：745 / 750

页数：6

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