THE MECHANISM OF SORPTION OF Ag+ IONS ON CHITOSAN MICROGRANULES: IR AND NMR STUDIES

被引：0
|
作者：
Modrzejewska, Zofia [1 ]
Dorabialska, Malgorzata [1 ]
Zarzycki, Roman [1 ]
Wojtasz-Pajak, Anna [2 ]
机构：
[1] Tech Univ Lodz, Fac Proc & Environm Engn, Ul Wolczanska 213, PL-90924 Lodz, Poland
[2] Sea Fisheries Inst Gdynia, PL-81332 Gdynia, Poland
来源：
PROGRESS ON CHEMISTRY AND APPLICATION OF CHITIN AND ITS DERIVATIVES | 2009年 / 14卷
关键词：
chitosan; microgranules; supercritical drying; sorption; ions Ag+;
D O I：
暂无
中图分类号：
TB3 [工程材料学]; R318.08 [生物材料学];
学科分类号：
0805 ; 080501 ; 080502 ;
摘要：
The method IR and NMR have been used to study the structure of chitosan microgranules chelated by Ag+ ions. The change of the structure was confirmed by XRD diffractograms which illustrated the crystalline structure. Analysis of the IR and NMR spectra confirmed major participation of NH2 and OH groups in attachment of Ag+ ions to a chitosan molecule which indicates in the same time changes occurring at glycosidic bonds during the process. After adsorption of Ag+ ions, the crystalline structure changes. Certain ordering of the structure in the amorphous part is observed.
引用
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页码：49 / 64
页数：16
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