Evaluation of Co and Zn competitive sorption by zeolitic material synthesized from fly ash using 60Co and 65Zn as radioindicators

被引：18
|
作者：
Pipiska, Martin [1 ,2 ]
Florkova, Eva [2 ]
Nemecek, Peter [3 ]
Remenarova, Lucia [2 ]
Hornik, Miroslav [2 ]
机构：
[1] Trnava Univ Trnava, Dept Chem, Priemyselna 4, Trnava 91843, Slovakia
[2] Univ SS Cyril & Methodius, Dept Ecochem & Radioecol, Nam J Herdu 2, Trnava 91701, Slovakia
[3] Univ SS Cyril & Methodius, Dept Chem, Nam J Herdu 2, Trnava 91701, Slovakia
来源：
JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY | 2019年 / 319卷 / 03期
关键词：
Fly ash conversion; Zeolitic material; Co-60; Zn-65; Competitive adsorption; HEAVY-METAL IONS; WASTE-WATER; AQUEOUS-SOLUTION; REMOVAL; ADSORBENTS; CADMIUM; ADSORPTION; POLLUTANTS; CD(II); MODELS;
D O I：
10.1007/s10967-018-6390-3
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
Zeolitic material prepared by hydrothermal treatment of brown coal fly ash was used for sorption separation of Co2+ and Zn2+ ions from single and binary solutions. Adsorption in single systems was rapid, pH dependent and follow the Langmuir isotherm. 3D sorption surfaces revealed competitive effects and mutual interactions between Co2+ and Zn2+ and significant preference for Zn2+ in binary system was confirmed. Surface retention and ion-exchange were most probably the principal mechanisms of Co2+ and Zn2+ removal. Zeolitic material with markedly high sorption capacity for Co2+ and Zn2+ can be a promising sorbent for removal of toxic metals and radionuclides.
引用
收藏
页码：855 / 867
页数：13
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