Ca/Mg bimetallic MOFs modified with amidoximerized polyacrylonitrile and high efficiency uranium(VI) extraction from solution

被引：2
作者：
Diao, Shilin [1 ,2 ,3 ,4 ,5 ]
Li, Mengfang [1 ,2 ,3 ]
Liu, Xuan [1 ,2 ,3 ]
Liu, Yujia [1 ,2 ,3 ]
Shang, Qingjin [6 ]
Xu, Yewei [1 ,2 ,3 ,4 ,5 ]
机构：
[1] Southwest Univ Sci & Technol, Sch Mat & Chem, Mianyang 621010, Peoples R China
[2] Southwest Univ Sci & Technol, State Key Lab Environm Friendly Energy Mat, Mianyang 621010, Peoples R China
[3] Southwest Univ Sci & Technol, Natl Engn Technol Ctr Insulat Mat, Mianyang 621010, Peoples R China
[4] Southwest Univ Sci & Technol, Engn Res Ctr Biomass Mat, Minist Educ, Mianyang, Peoples R China
[5] Sichuan Guanmusiyang New Mat Technol Co Ltd, Mianyang 621010, Peoples R China
[6] Shandong Kelikang Pharmaceut Co Ltd, Dezhou 250021, Peoples R China
来源：
JOURNAL OF SOLID STATE CHEMISTRY | 2024年 / 338卷
关键词：
Ca/mg-MOF/PAO; Uranium(VI); Adsorption; Mechanism; METAL-ORGANIC FRAMEWORKS; MICROWAVE SYNTHESIS; MESOPOROUS SILICA; ADSORPTION; REMOVAL; U(VI); SEAWATER; HYDROXIDE; WATER; ION;
D O I：
10.1016/j.jssc.2024.124894
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
A hybrid material, Ca/Mg-MOF/polyamidoxime (Ca/Mg-MOF/PAO), was synthesized and tested for uranium(VI) uptake in solution. The structure and performance of Ca/Mg-MOF/PAO were comprehensively investigated. Adsorption experiments demonstrated that Ca/Mg-MOF/PAO exhibited an extraordinary saturation capacity of 579.5 mg/g for uranium (VI) at pH = 8, surpassing that of most other adsorbents. The adsorption process of Ca/ Mg-MOF/PAO on uranium (VI) conformed to Langmuir and PSO models, suggesting chemical rate control and monolayer adsorption, respectively. Furthermore, Ca/Mg-MOF/PAO displayed excellent adsorption-desorption recovery performance for uranium (VI). Its high adsorption capacity and efficient recoverability position Ca/ Mg-MOF/PAO as a material with great potential for extracting uranium (VI) from aqueous media.
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页数：11
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