Uranium (VI) adsorption from aqueous solution by GO wrapped Cu/Fe bimetallic MOF composites

被引：0
|
作者：
Yang, Xuan [1 ]
Chen, Jinlu [1 ]
Xu, Dongyang [2 ]
Tao, Zui [2 ]
Liu, Jun [2 ]
Tan, Songbo [3 ]
Wang, Lianyun [1 ]
Xiao, Fangzhu [4 ]
Peng, Guowen [2 ]
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 Nucl Sci & Technol, Hengyang 421001, Hunan, Peoples R China
[4] Univ South China, Sch Publ Hlth, Hengyang 421001, Hunan, Peoples R China
来源：
JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY | 2024年 / 333卷 / 09期
基金：
中国国家自然科学基金;
关键词：
Metal-organic frameworks (MOFs); MIL-101(Fe; Cu); GO; Uranium adsorption; METAL-ORGANIC FRAMEWORKS; ION ADSORPTION; PRECIPITATION; EXTRACTION; CAPTURE;
D O I：
10.1007/s10967-024-09638-9
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
In this study, the thermodynamics and kinetics of U(VI) adsorption and removal on MIL-101(Fe, Cu)/GO from wastewater were studied. The effects of pH, contact time, initial concentration and adsorption temperature were systematically studied. The results showed an effective U(VI) adsorption capacity of the MOF. The adsorption of U(VI) was analyzed by using different isotherms as well as various kinetics models. The results showed that Langmuir adsorption isotherm and quasi-second-order kinetic model were followed by the adsorption of U(VI) on MIL-101(Fe, Cu)/GO. Thermodynamic studies (Delta G < 0, Delta H < 0) demonstrated that the adsorption process is exothermic and spontaneous. The results revealed that MIL-101(Fe, Cu)/GO has a real prospect for the application in the adsorption and removal of U(VI).
引用
收藏
页码：4591 / 4606
页数：16
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