Fabrication of amidoxime-appended UiO-66 for the efficient and rapid removal of U(VI) from aqueous solution

doi:10.1016/j.micromeso.2021.111511

	Fabrication of amidoxime-appended UiO-66 for the efficient and rapid removal of U(VI) from aqueous solution
	Gao, Qianhong 1; Wang, Minglei 2; Zhao, Jianchang 2; Zhang, Mingxing 2,3; Shao, Dadong 1; Hu, Jiangtao 2; Wu, Guozhong2,4
	2022-01
发表期刊	MICROPOROUS AND MESOPOROUS MATERIALS (IF:4.8[JCR-2023],4.7[5-Year])
ISSN	1387-1811
EISSN	1873-3093
卷号	329
发表状态	已发表
DOI	10.1016/j.micromeso.2021.111511
摘要	In this study, an amidoxime-appended zirconium metal-organic framework [Zr6O4(OH)4(BDC-NHCH2CH2C (=N-OH)NH2)6](UiO-66-AO, BDC = 1,4-benzenedicarboxylate) for efficiently and rapidly removing uranium from aqueous solution was fabricated through post-modifications. The chemical structure and composition of original and modified UiO-66 MOFs were investigated in detail. The principal factors affecting the adsorption of U(VI) ions have been investigated, including pH of the aqueous solution, contact time, temperature, and coexisting cations through batch adsorption experiments. The adsorption kinetics conformed to the pseudo-secondorder model. It was found that the maximum adsorption capacity reached 232.8 mg/g at pH 5.0 and 328 K based on the Langmuir isotherm. The thermodynamics parameters revealed that this adsorption process was spontaneous and endothermic. The sorption experiment in a simulated nuclear industry effluent demonstrated a high adsorption efficiency (about 95.3%) and selectivity toward uranium. The extended X-ray absorption fine structure (EXAFS) analysis revealed the coordination mechanism of amidoxime-appended UiO-66 and uranyl.
关键词	Metal-organic framework Amidoxime Uranyl Adsorption Post-modification
收录类别	SCIE ; EI
语种	英语
WOS研究方向	Chemistry ; Science & Technology - Other Topics ; Materials Science
WOS类目	Chemistry, Applied ; Chemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary
WOS记录号	WOS:000722311200001
出版者	ELSEVIER
原始文献类型	Article
引用统计	正在获取...
文献类型	期刊论文
条目标识符	https://kms.shanghaitech.edu.cn/handle/2MSLDSTB/133123
专题	物质科学与技术学院_特聘教授组_吴国忠组
通讯作者	Hu, Jiangtao; Wu, Guozhong
作者单位	1.Nanjing Univ Sci & Technol, Sch Environm & Biol Engn, 200 Xiaolingwei, Nanjing 210094, Jiangsu, Peoples R China; 2.Chinese Acad Sci, Shanghai Inst Appl Phys, 2019 Jialuo Rd, Shanghai 201800, Peoples R China; 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China; 4.Shanghai Tech Univ, Sch Phys Sci & Technol, Shanghai 200031, Peoples R China
通讯作者单位	物质科学与技术学院
推荐引用方式 GB/T 7714	Gao, Qianhong,Wang, Minglei,Zhao, Jianchang,et al. Fabrication of amidoxime-appended UiO-66 for the efficient and rapid removal of U(VI) from aqueous solution[J]. MICROPOROUS AND MESOPOROUS MATERIALS,2022,329.
APA	Gao, Qianhong.,Wang, Minglei.,Zhao, Jianchang.,Zhang, Mingxing.,Shao, Dadong.,...&Wu, Guozhong.(2022).Fabrication of amidoxime-appended UiO-66 for the efficient and rapid removal of U(VI) from aqueous solution.MICROPOROUS AND MESOPOROUS MATERIALS,329.
MLA	Gao, Qianhong,et al."Fabrication of amidoxime-appended UiO-66 for the efficient and rapid removal of U(VI) from aqueous solution".MICROPOROUS AND MESOPOROUS MATERIALS 329(2022).