Perrhenate-ions adsorption by N-substituted chitosan derivatives

被引：4

作者：

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

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

Pechishcheva, N. V. ^{[1
,3
]}

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

机构：

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

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

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

来源：

RUSSIAN CHEMICAL BULLETIN | 2019年 / 68卷 / 03期

关键词：

adsorption; rhenium; chitosan; functional derivatives; HEAVY-METAL IONS; SORPTION PROPERTIES; RHENIUM SORPTION; GEL; MOLYBDENUM; KINETICS; RESIN;

D O I：

10.1007/s11172-019-2448-9

中图分类号：

O6 [化学];

学科分类号：

0703 ;

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.

引用

页码：521 / 526

页数：6

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