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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
Source PublicationACS APPLIED MATERIALS & INTERFACES
ISSN1944-8244
Volume9Issue:38Pages:32446-32451
Subtype期刊论文
AbstractEnrichment 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.
KeywordTransfer 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
Indexed BySCI
WOS KeywordTRANSFER RADICAL POLYMERIZATION ; RAY-ABSORPTION SPECTROSCOPY ; POROUS AROMATIC FRAMEWORK ; SELECTIVE REMOVAL ; MESOPOROUS CARBON ; AQUEOUS-SOLUTIONS ; SMALL-MOLECULE ; U(VI) CAPTURE ; RECOVERY ; COORDINATION
Language英语
WOS IDWOS:000412149800007
Citation statistics
Cited Times:64[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.sinap.ac.cn/handle/331007/28889
Collection中科院上海应用物理研究所2011-2019年
Recommended Citation
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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