文献类型：期刊文献

英文题名：Highly efficient adsorption of U(VI) from aqueous solution by the terpolymer of acrylonitrile/acrylic acid-co-hydroxyapatite

作者：Wang, Ruixia[1,2];Tian, Huining[1,2];Jin, Xiaolan[3];Zhang, Yifu[1,2];Liu, Tonghuan[4,5];Duan, Guojian[1,2];Chen, Hui[1,2]

第一作者：Wang, Ruixia

通信作者：Duan, GJ[1];Chen, H[1];Duan, GJ[2];Chen, H[2]

机构：[1]Gansu Univ Chinese Med, Coll Pharm, Northwest Collaborat Innovat Ctr Tradit Chinese Me, Lanzhou 730000, Peoples R China;[2]Gansu Univ Chinese Med, Coll Pharm, MOE, Lanzhou 730000, Peoples R China;[3]Gansu Univ Chinese Med, Sch Clin Med 1, Lanzhou 730000, Peoples R China;[4]Lanzhou Univ, Sch Nucl Sci & Technol, Radiochem Lab, Lanzhou 730000, Peoples R China;[5]Lanzhou Univ, Sch Nucl Sci & Technol, Key Lab Special Funct Mat & Struct Design Dinistry, Lanzhou 730000, Peoples R China

第一机构：甘肃中医药大学药学院（西北中藏药协同创新中心办公室）

通信机构：[1]corresponding author), Gansu Univ Chinese Med, Coll Pharm, Northwest Collaborat Innovat Ctr Tradit Chinese Me, Lanzhou 730000, Peoples R China;[2]corresponding author), Gansu Univ Chinese Med, Coll Pharm, MOE, Lanzhou 730000, Peoples R China.|[1073501e14fb35863569f]甘肃中医药大学药学院（西北中藏药协同创新中心办公室）;[10735]甘肃中医药大学;

年份：2023

卷号：294

起止页码：162

外文期刊名：DESALINATION AND WATER TREATMENT

收录：;Scopus(收录号：2-s2.0-85163668314);WOS:【SCI-EXPANDED(收录号:WOS:001026799500017)】；

基金：YThis research was funded by: "In 2022, Gansu Province Higher Education Youth Doctor Foundation Project, Grant Number 2022QB-098"; "Science and Technology Project of Gansu Province, Grant Number 21JR1RA265"; "Gansu University of Chinese Medicine Postgraduate Innovation Fund, Grant Number 2021CX43"; "Key Scientific Research Projects of Gansu Institute of Traditional Chinese Medicine, Grant Number 2305137402".

语种：英文

外文关键词：Adsorption; Terpolymer; Hydroxyapatite; Acrylonitrile; Acrylic acid; U(VI)

摘要：To better eliminate the impact of radioactive elements on the environment, we synthesized a ter -polymer of acrylonitrile, acrylic acid, and hydroxyapatite (AN/AA-co-HAP) as an adsorption mate-rial for separating uranyl ions in aqueous solution, which was based on our previous work. We used Fourier-transform infrared spectroscopy, scanning electron microscopy, elemental analysis, N2 sorption/desorption isotherm, thermogravimetric analysis and X-ray diffraction methods to characterize the material's structure, and studied the effect of equilibrium time, pH, ionic strength, solid-liquid ratio, initial concentration, and temperature on the adsorption process. Finally, it is con-cluded that adsorption equilibrium can be reached within 60 min at room temperature, and the maximum adsorption capacity is 343.3 mg/g. Thermodynamic analysis indicates that the adsorption process is a spontaneous endothermic process. In the system with a nitric acid concentration of 0.05 mol/L (pH value: 1.3), the desorption rate of U(VI) can reach 91%, while the adsorption rate of U(VI) in aqueous solution onto AN/AA-co-HAP is still remains >60% even after the material is has been reused 6 times. These results suggest that AN/AA-co-HAP is highly valuable for treating U(VI) ions in aqueous solution.