气候变化领域集成服务门户(CCPortal): 3D hierarchical porous amidoxime fibers speed up uranium extraction from seawater

CCPortal

DOI	10.1039/c9ee00626e
	3D hierarchical porous amidoxime fibers speed up uranium extraction from seawater
	Xu X.; Zhang H.; Ao J.; Xu L.; Liu X.; Guo X.; Li J.; Zhang L.; Li Q.; Zhao X.; Ye B.; Wang D.; Shen F.; Ma H.
发表日期	2019
ISSN	17545692
起始页码	1979
结束页码	1988
卷号	12 期号:6
英文摘要	The development of amidoxime-based polymeric (ABP) fibers offers a solution for uranium extraction from seawater (UES) and provides an alternative solution to the uranium resource shortage. However, ABP adsorbents prepared by existing methods cannot meet the requirements of high adsorption capacity, high selectivity, good mechanical strength and long service life. Herein, we fabricated a 3D hierarchical porous, high specific surface area ABP (H-ABP) fiber via self-assembly of axial grafting chains. A high adsorption capacity of 11.50 mg-U per g-adsorbents was achieved in natural seawater, which is a significant breakthrough in UES. Meanwhile, the adsorption capacity of uranium was higher than its major competing element vanadium, which overturned the U/V mass ratio of the ABP fiber. The H-ABP fiber also exhibited good mechanical strength and a long service life of at least 10 adsorption-desorption cycles. The well-designed structure resulted in groundbreaking properties, which completely meet the requirements for the economic evaluation of UES. This work presents a new technology for the synthesis of highly efficient adsorbents for UES, thus opening a whole new means of nuclear fuel production from the ocean. © 2019 The Royal Society of Chemistry.
英文关键词	Adsorption; Extraction; Nuclear fuels; Petroleum reservoir evaluation; Seawater; Uranium; Uranium metallurgy; Adsorption capacities; Adsorption-desorption cycles; Alternative solutions; Economic evaluations; Hierarchical porous; High adsorption capacity; High specific surface area; Uranium extraction; Fibers; absorption; extraction method; hierarchical system; porous medium; seawater; surface area; technological development; three-dimensional modeling; uranium
语种	英语
来源期刊	Energy & Environmental Science
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/189896
作者单位	Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai, 201800, China; School of Petrochemical Engineering, Changzhou University, Changzhou, 213164, China; State Key Laboratory of Particle Detection and Electronics, University of Science and Technology of China, Hefei, 230026, China; University of Chinese Academy of Sciences, Beijing, 100049, China; Department of Chemistry and Chemical Engineering, Shanghai Normal University, Shanghai, 200234, China; State Key Laboratory of Marine Environmental Science, Xiamen University, Xiamen, 361005, China; Institute of Process Engineering, Chinese Academy of Sciences, Beijing, 100190, China
推荐引用方式 GB/T 7714	Xu X.,Zhang H.,Ao J.,et al. 3D hierarchical porous amidoxime fibers speed up uranium extraction from seawater[J],2019,12(6).
APA	Xu X..,Zhang H..,Ao J..,Xu L..,Liu X..,...&Ma H..(2019).3D hierarchical porous amidoxime fibers speed up uranium extraction from seawater.Energy & Environmental Science,12(6).
MLA	Xu X.,et al."3D hierarchical porous amidoxime fibers speed up uranium extraction from seawater".Energy & Environmental Science 12.6(2019).