Removal of pertechnetate from aqueous solution using activated pyrolytic rubber char

被引：4
|
作者：
Matovic, Lj [1 ]
Dukic, A. [1 ]
Omeraevic, M. [1 ]
Kumric, K. [2 ]
Rosskopfova, O. [3 ]
Hamarova, A. [3 ]
Rajec, P. [3 ]
机构：
[1] Univ Belgrade, Vinca Inst Nucl Sci, Mat Sci Lab, POB 522, Belgrade 11001, Serbia
[2] Univ Belgrade, Vina Inst Nucl Sci, Phys Lab, POB 522, Belgrade 11001, Serbia
[3] Comenius Univ, Dept Nucl Chem, Fac Nat Sci, Bratislava, Slovakia
来源：
JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY | 2017年 / 314卷 / 02期
关键词：
(TcO4-)-Tc-99m; Adsorption; Waste rubber; Pyrolysis; Carbon-based material; CONTAMINATED GROUNDWATER; CARBON; ADSORPTION; SORPTION; WASTE; TIRES; TC-99; ION; TECHNETIUM; SEPARATION;
D O I：
10.1007/s10967-017-5442-4
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
Low-cost adsorbents, synthesized by pyrolysis of waste rubber (CR) and activated with KOH (CRA), have shown the high removal ability of from aqueous solutions in wide range of pHs (2-10) with fast adsorption rate. The Langmuir and Freundlich models suggests monolayer and multilayer adsorption of onto CR and CRA surface, respectively. The removal mechanism of from solution occurs by replacement with OH- from surface groups (phenolic and/or accompanying carboxylic) of CR and CRA indicating anion exchange mechanism.
引用
收藏
页码：897 / 905
页数：9
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