Perrhenate-ions adsorption by N-substituted chitosan derivatives

被引：0
作者：
O. V. Melchakova
A. V. Pestov
N. V. Pechishcheva
K. Yu. Shunyaev
机构：
[1] Ural Branch of Russian Academy of Sciences,Institute of Metallurgy
[2] Ural Branch of Russian Academy of Sciences,I. Ya. Postovskii Institute of Organic Synthesis
[3] Ural Federal University named after the first President of Russia B. N. Yeltsin,undefined
来源：
Russian Chemical Bulletin | 2019年 / 68卷
关键词：
adsorption; rhenium; chitosan; functional derivatives;
D O I：
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学科分类号：
摘要：
A comparative study of the sorption properties of N-(2-carboxyethyl)chitosan (CEC), N-(2-sulfoethyl)chitosan (SEC), N-(2,3-dihydroxy)propyl chitosan (HPC) and N-2-(2-pyridyl)ethyl chitosan (PEC) with respect to perrhenate ions in an acidic medium was carried out. On the basis of the analysis of the adsorption isotherms and the perrhenate ion adsorption degrees as functions of pH, it was found that the efficiency of adsorbents decreases in the sequence PEC > SEC > HPC > CEC. The investigated chitosan derivatives are characterized by a higher rate of sorption of perrhenate ions in comparison with known commercial anionites. In the case of PEC, accompanying ions have the least effect on the sorption.
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页码：521 / 526
页数：5
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