气候变化领域集成服务门户(CCPortal): Bioinspired hierarchical porous membrane for efficient uranium extraction from seawater

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DOI	10.1038/s41893-021-00792-6
	Bioinspired hierarchical porous membrane for efficient uranium extraction from seawater
	Yang L.; Xiao H.; Qian Y.; Zhao X.; Kong X.-Y.; Liu P.; Xin W.; Fu L.; Jiang L.; Wen L.
发表日期	2021
ISSN	2398-9629
英文摘要	The oceans offer a virtually infinite source of uranium and could sustain nuclear power technology in terms of fuel supply. However, the current processes to extract uranium from seawater remain neither economically viable nor efficient enough to compete with uranium ore mining. Microporous polymers are emerging materials for the adsorption of uranyl ions due to their rich binding sites, but they still fall short of satisfactory performance. Here, inspired by the ubiquitous fractal structure in biology that is favourable for mass and fluid transfer, we describe a hierarchical porous membrane based on polymers of intrinsic microporosity that can capture uranium in seawater. This biomimetic membrane allows for rapid diffusion of uranium species, leading to a 20-fold higher uranium adsorption capacity in a uranium-spiked water solution (32 ppm) than the membrane with only intrinsic microporosity. Furthermore, in natural seawater, the membrane can extract as much uranium as 9.03 mg g−1 after four weeks. This work suggests a strategy to be extended to the rational design of a large family of microporous polymer adsorbents that could fulfil the vast promise of the oceans to fuel a reliable and potentially sustainable energy source. © 2021, The Author(s), under exclusive licence to Springer Nature Limited.
语种	英语
scopus关键词	Binding sites; Biomimetics; Extraction; Membranes; Nuclear fuels; Ores; Seawater; Uranium; Uranium compounds; 'current; Economically viable; Fuel supply; Hierarchical porous; Microporous polymers; Nuclear power technology; Ore mining; Porous membranes; Uranium extraction; Uranium ore; Microporosity
来源期刊	Nature Sustainability
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/249875
作者单位	CAS Key Laboratory of Bio-inspired Materials and Interfacial Science, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, China; School of Future Technology, University of Chinese Academy of Sciences, Beijing, China; Shaanxi Key Laboratory of Macromolecular Science and Technology, School of Chemistry and Chemical Engineering, Northwestern Polytechnical University, Xi’an, China
推荐引用方式 GB/T 7714	Yang L.,Xiao H.,Qian Y.,et al. Bioinspired hierarchical porous membrane for efficient uranium extraction from seawater[J],2021.
APA	Yang L..,Xiao H..,Qian Y..,Zhao X..,Kong X.-Y..,...&Wen L..(2021).Bioinspired hierarchical porous membrane for efficient uranium extraction from seawater.Nature Sustainability.
MLA	Yang L.,et al."Bioinspired hierarchical porous membrane for efficient uranium extraction from seawater".Nature Sustainability (2021).