Sorbents based on N-(2-carboxyethyl)chitosan cross-linked by nanosecond electron beams

被引:0
|
作者
S. Yu. Sokovnin
M. E. Balezin
I. S. Puzyrev
A. V. Pestov
Yu. G. Yatluk
E. V. Zabolotskaya
机构
[1] Ural Branch of the Russian Academy of Sciences,Institute of Electrophysics
[2] Ural Branch of the Russian Academy of Sciences,I. Ya. Postovsky Institute of Organic Chemistry
[3] Ural Branch of the Russian Academy of Sciences,Institute of Solid State Chemistry
来源
Russian Chemical Bulletin | 2009年 / 58卷
关键词
chitosan; carboxyethylchitosan; carboxymethylchitosan; chelate sorbents; nano-second electron beam;
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学科分类号
摘要
Methods for the synthesis of new chelating chitosan derivatives containing 2-carboxyethyl groups were developed. Their macromolecules were cross-linked by the irradiation with a nanosecond electron beam, which gave for the first time sorbents with a high sorption capacity for CuII ions. The maximum sorption capacity, which is achieved in the pH range 6.5–7.2. and the Langmuir adsorption constant of Cu2+ ions on the sorbent with the degree of substitution 0.91 are 1.37 mmol g−1 and 152.51 L mol−1, respectively. The structures of the formed complexes in the sorbent phase were characterized by ESR spectroscopy.
引用
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页码:1172 / 1179
页数:7
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