Preparation of Sorbents Based on Chitosan and Its Sulfoethyl Derivative for Sorption of Perrhenate Ions

被引：4

作者：

Evdokimova, O. V. ^{[1
]}

Pestov, A. V. ^{[2
,3
]}

Pechishcheva, N. V. ^{[1
]}

Shunyaev, K. Yu. ^{[1
,3
]}

机构：

[1] Russian Acad Sci, Ural Branch, Inst Met, Ul Amundsena 101, Ekaterinburg 620016, Russia

[2] Russian Acad Sci, Ural Branch, Postovskii Inst Organ Synth, Ul S Kovalevskoi 22, Ekaterinburg 620990, Russia

[3] Ural Fed Univ, Ul Mira 19, Ekaterinburg 620002, Russia

来源：

RUSSIAN JOURNAL OF APPLIED CHEMISTRY | 2016年 / 89卷 / 08期

关键词：

SULFURIC-ACID-SOLUTIONS; ANION-EXCHANGE RESIN; RHENIUM SORPTION; POLYMERS; REMOVAL; URANIUM; GEL;

D O I：

10.1134/S1070427216080267

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

The ability of cross-linked chitosan to take up perrhenate ions was studied systematically. The degree of sorption from acetate buffer solution at pH in the interval 2.8-3.1 reaches 85% and more. N-Sulfoethylation decreases the sorption ability of chitosan, but expands the pH interval of sorption and shifts the optimum pH value toward higher acidities. The sorption materials exhibit higher sorption rate than standard synthetic ion exchangers do. The data obtained suggest predominant ion-exchange mechanism of sorption of perrhenate ions onto chitosan and its sulfoethyl derivative.

引用

页码：1377 / 1382

页数：6

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