气候变化领域集成服务门户(CCPortal): Benchmark uranium extraction from seawater using an ionic macroporous metal-organic framework

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DOI	10.1039/d2ee01199a
	Benchmark uranium extraction from seawater using an ionic macroporous metal-organic framework
	Mollick, Samraj; Saurabh, Satyam; More, Yogeshwar D.; Fajal, Sahel; Shirolkar, Mandar M.; Mandal, Writakshi; Ghosh, Sujit K.
发表日期	2022
ISSN	1754-5692
EISSN	1754-5706
起始页码	3462
结束页码	3469
卷号	15 期号:8
英文摘要	Large-scale uranium extraction from seawater (UES) is widely considered as reconciliation to increasing global energy demand and climate change crises. However, an ideal uranium sorbent combining the features of high capacity, excellent selectivity, and ultra-fast kinetics is highly desirable but a long-standing challenge due to the lack of a proper adsorbent. Herein, we adopted a prototypal hybridization strategy to design a rare ionic macroporous metal-organic framework (MOF) decorated with multiple functional groups. The resulting ionic adsorbent captures 99.98% of the uranium in just 120 min (from similar to 50 000 to similar to 10 ppb) and offers a very large distribution coefficient, KUd > 10(7) mL g(-1), demonstrating a strong affinity towards uranium. Notably, the material harvests 96.3% of uranium simply in 120 min from natural seawater, affording a remarkable enrichment index of 25044 and thereby introducing a new benchmark uranium adsorbent. Moreover, it satisfied the preset target of the UES standard (6 mg g(-1)) within 2 days and achieved a record uranium uptake capacity of 28.2 mg g(-1) from natural seawater only in 25 days, which is a significant breakthrough in UES. The structural evidence from both experimental and theoretical studies confirmed that the formation of favourable chelating motifs into the ionic macropores governs the highly selective recovery of uranium from water.
语种	英语
WOS研究方向	Chemistry, Multidisciplinary ; Energy & Fuels ; Engineering, Chemical ; Environmental Sciences
WOS类目	Science Citation Index Expanded (SCI-EXPANDED)
WOS记录号	WOS:000823951600001
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/280931
作者单位	Indian Institute of Science Education & Research (IISER) Pune; Symbiosis International University; Indian Institute of Science Education & Research (IISER) Pune
推荐引用方式 GB/T 7714	Mollick, Samraj,Saurabh, Satyam,More, Yogeshwar D.,et al. Benchmark uranium extraction from seawater using an ionic macroporous metal-organic framework[J],2022,15(8).
APA	Mollick, Samraj.,Saurabh, Satyam.,More, Yogeshwar D..,Fajal, Sahel.,Shirolkar, Mandar M..,...&Ghosh, Sujit K..(2022).Benchmark uranium extraction from seawater using an ionic macroporous metal-organic framework.ENERGY & ENVIRONMENTAL SCIENCE,15(8).
MLA	Mollick, Samraj,et al."Benchmark uranium extraction from seawater using an ionic macroporous metal-organic framework".ENERGY & ENVIRONMENTAL SCIENCE 15.8(2022).