Magnetic graphene oxide based nano-composites for removal of radionuclides and metals from contaminated solutions

被引：43
|
作者：
Lujaniene, G. [1 ]
Semcuk, S. [1 ]
Lecinskyte, A. [1 ]
Kulakauskaite, I. [1 ]
Mazeika, K. [1 ]
Valiulis, D. [1 ]
Pakstas, V. [1 ]
Skapas, M. [1 ]
Tumenas, S. [1 ]
机构：
[1] SRI Ctr Phys Sci & Technol, Vilnius, Lithuania
来源：
JOURNAL OF ENVIRONMENTAL RADIOACTIVITY | 2017年 / 166卷
关键词：
Cs; Metals; Graphene oxide nano-composites; Prussian blue; AQUEOUS-SOLUTIONS; EFFICIENT REMOVAL; ADSORPTION; NANOSHEETS; CU(II); IONS; CESIUM; PB(II); U(VI); WATER;
D O I：
10.1016/j.jenvrad.2016.02.014
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
Magnetic graphene oxide based composites of the nano-particle size of <10 nm were synthesized, characterized and used in sorption experiments. The adsorption of Cs(I), Co(II), Ni(II), Cu(II) and Pb(II) to nano-composites was studied in a wide range of initial concentrations and analyzed by Langmuir and Freundlich models. In addition, the effects of pH and coexisting ions on the adsorption of Cs to Prussian blue based composites were investigated. The maximum adsorption capacities of studied elements varied from 29 to 641 mg g(-1). The obtained Langmuir and Freundlich constants indicated the dominating physisorption mechanism and favorable adsorption conditions. (C) 2016 Elsevier Ltd. All rights reserved.
引用
收藏
页码：166 / 174
页数：9
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