Ultrafast and Efficient Extraction of Uranium from Seawater Using an Amidoxime Appended Metal-Organic Framework
Chen, L; Bai, ZL; Zhu, L; Zhang, LJ; Cai, YW; Li, YX; Liu, W; Wang, YL; Chen, LH; Juan, DW; Wang, JQ; Chai, ZF; Wang, S
2017
发表期刊ACS APPLIED MATERIALS & INTERFACES
ISSN1944-8244
卷号9期号:38页码:32446-32451
文章类型期刊论文
摘要Enrichment of uranyl from seawater is crucial for the sustainable development of nuclear energy, but current uranium extraction technology suffers from multiple drawbacks of low sorption efficiency, slow uptake kinetics, or poor extraction selectivity. Herein, we prepared the first example of amidoxime appended metal organic framework UiO-66-AO by a postsynthetic modification method for rapid and efficient extraction of uranium from seawater. UiO-66-AO can remove 94.8% of uranyl ion from Bohai seawater within 120 min and 99% of uranyl ion from Bohai seawater containing extra 500 ppb uranium within 10 min. The uranyl sorption capacity in a real seawater sample was determined to be 2.68 mg/g. In addition, the recyclability of the UiO-66-AO framework was demonstrated for at least three adsorption/desorption cycles. The origin for the superior sorption capability was further probed by extended X-ray absorption fine structure (EXAFS) analysis on the uranium-sorbed sample, suggesting multiple amidoxime ligands are able to chelate uranyl(VI) ions, forming a hexagonal bipyramid coordination geometry.
关键词Transfer Radical Polymerization Ray-absorption Spectroscopy Porous Aromatic Framework Selective Removal Mesoporous Carbon Aqueous-solutions Small-molecule u(Vi) Capture Recovery Coordination
DOI10.1021/acsami.7b12396
关键词[WOS]TRANSFER RADICAL POLYMERIZATION ; RAY-ABSORPTION SPECTROSCOPY ; POROUS AROMATIC FRAMEWORK ; SELECTIVE REMOVAL ; MESOPOROUS CARBON ; AQUEOUS-SOLUTIONS ; SMALL-MOLECULE ; U(VI) CAPTURE ; RECOVERY ; COORDINATION
收录类别SCI
语种英语
WOS记录号WOS:000412149800007
引用统计
被引频次:15[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.sinap.ac.cn/handle/331007/28889
专题中科院上海应用物理研究所2011-2018年
推荐引用方式
GB/T 7714
Chen, L,Bai, ZL,Zhu, L,et al. Ultrafast and Efficient Extraction of Uranium from Seawater Using an Amidoxime Appended Metal-Organic Framework[J]. ACS APPLIED MATERIALS & INTERFACES,2017,9(38):32446-32451.
APA Chen, L.,Bai, ZL.,Zhu, L.,Zhang, LJ.,Cai, YW.,...&Wang, S.(2017).Ultrafast and Efficient Extraction of Uranium from Seawater Using an Amidoxime Appended Metal-Organic Framework.ACS APPLIED MATERIALS & INTERFACES,9(38),32446-32451.
MLA Chen, L,et al."Ultrafast and Efficient Extraction of Uranium from Seawater Using an Amidoxime Appended Metal-Organic Framework".ACS APPLIED MATERIALS & INTERFACES 9.38(2017):32446-32451.
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