Graphene oxide wrapped Cu-MOF as an efficient adsorbent for uranium extraction from aqueous solution

被引：4
|
作者：
Chen, Jinlu [1 ]
Yang, Xuan [1 ]
Wang, Lianyun [1 ]
Chen, Xiaoli [1 ]
Tao, Zui [2 ]
Tan, Songbo [2 ]
Xiao, Fangzhu [3 ]
Peng, Guowen [4 ]
机构：
[1] Univ South China, Sch Chem & Chem Engn, Hengyang 421001, Hunan, Peoples R China
[2] Univ South China, Sch Resources Environm & Safety Engn, Hengyang 421001, Hunan, Peoples R China
[3] Univ South China, Sch Publ Hlth, Hengyang 421001, Hunan, Peoples R China
[4] Univ South China, Hunan Engn Res Ctr Safety Control & Recycling Radi, Hengyang 421001, Hunan, Peoples R China
来源：
JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY | 2024年 / 333卷 / 01期
关键词：
Cu-BTC; GO; Metal-organic frameworks (MOFs); Uranium adsorption; ADSORPTION; REMOVAL; COMPOSITES; PERFORMANCE; SOLUBILITY; SPECIATION; CAPACITY; GO;
D O I：
10.1007/s10967-023-09219-2
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
A hydrothermal and ethanol activation method is proposed to synthesize Cu-BTC and graphite oxide composites (Cu-BTC/GO). The uranium dynamic adsorption behavior was investigated by varying the addition of graphene oxide. The result showed that Langmuir isotherm and quasi-secondary kinetic model (R-2 > 0.99) were more consistent with the adsorption process of uranium (VI) on this composite, and the maximum uranium adsorption was 150.50 mg g(-1). The thermodynamic parameters indicated that this adsorption process was spontaneous and endothermic. After five adsorption-desorption cycles, the adsorption efficiency can still reach 76.6-78.9%. This study will help to draw a promising roadmap to describe the adsorption performance of Cu-BTC/GO composites for uranium.
引用
收藏
页码：263 / 279
页数：17
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