Extremely stable amidoxime functionalized covalent organic frameworks for uranium extraction from seawater with high efficiency and selectivity

Science Bulletin, Journal Year: 2021, Volume and Issue: 66(19), P. 1994 - 2001

Published: May 16, 2021

Language: Английский

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Uranium extraction from seawater: material design, emerging technologies and marine engineering

Chemical Society Reviews, Journal Year: 2022, Volume and Issue: 52(1), P. 97 - 162

Published: Nov. 30, 2022

Uranium extraction from seawater (UES), a potential approach to securing the long-term uranium supply and sustainability of nuclear energy, has experienced significant progress in past decade.

Language: Английский

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Adsorption of uranium (VI) by metal-organic frameworks and covalent-organic frameworks from water

Coordination Chemistry Reviews, Journal Year: 2022, Volume and Issue: 475, P. 214917 - 214917

Published: Oct. 31, 2022

Language: Английский

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Functional nanomaterials for selective uranium recovery from seawater: Material design, extraction properties and mechanisms

Coordination Chemistry Reviews, Journal Year: 2023, Volume and Issue: 483, P. 215097 - 215097

Published: March 6, 2023

Language: Английский

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Preparation of amidoxime modified porous organic polymer flowers for selective uranium recovery from seawater

Chemical Engineering Journal, Journal Year: 2021, Volume and Issue: 418, P. 129370 - 129370

Published: March 18, 2021

Language: Английский

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Constructing Uranyl-Specific Nanofluidic Channels for Unipolar Ionic Transport to Realize Ultrafast Uranium Extraction

Journal of the American Chemical Society, Journal Year: 2021, Volume and Issue: 143(36), P. 14523 - 14529

Published: Sept. 6, 2021

High-speed capturing of uranyl (UO22+) ions from seawater elicits unprecedented interest for the sustainable development nuclear energy industry. However, ultralow concentration (∼3.3 μg L–1) uranium element leads to slow ion diffusion inside adsorbent particle, especially after transfer paths are occupied by coexisted interfering ions. Considering geometric dimension UO22+ (a maximum length 6.04–6.84 Å), interlayer spacing graphene sheets was covalently pillared with phenyl-based units into twice ionic (13 Å) obtain uranyl-specific nanofluidic channels. Applying a negative potential (−1.3 V), such charge-governed region facilitates unipolar transport, where cations greatly accelerated and co-ions repelled. Notably, resulting gives highest adsorption velocity among all reported materials. The capacity measured 56 days exposure in natural is evaluated be ∼16 mg g–1. This novel concept rapid adsorption, high capacity, facile operating process shows great promise implement real-world extraction.

Language: Английский

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Fabrication and regulation of vacancy-mediated bismuth oxyhalide towards photocatalytic application: Development status and tendency

Coordination Chemistry Reviews, Journal Year: 2021, Volume and Issue: 443, P. 214033 - 214033

Published: May 25, 2021

Language: Английский

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Supramolecularly Poly(amidoxime)-Loaded Macroporous Resin for Fast Uranium Recovery from Seawater and Uranium-Containing Wastewater

ACS Applied Materials & Interfaces, Journal Year: 2021, Volume and Issue: 13(2), P. 3246 - 3258

Published: Jan. 7, 2021

Uranium is an extremely abundant resource in seawater that could supply nuclear fuel for over the long-term, but it tremendously difficult to extract. Here, a new supramolecular poly(amidoxime) (PAO)-loaded macroporous resin (PLMR) adsorbent has been explored highly efficient uranium adsorption. Through simply immersing PAO solution, PAOs can be firmly loaded on surface of nanopores mainly by hydrophobic interaction, achieve as-prepared PLMR. Unlike existing amidoxime-based adsorbents containing many inner minimally effective PAOs, almost all PLMR have high adsorption efficiency because they form PAO-layer with molecular-level thickness and ultrahigh specific area. As result, this adsorbing performance. The capacity was 157 mg/g (the UPAO 1039 mg/g), 32 ppm uranium-spiked 120 h. Additionally, 1.0 L 100 ppb U-spiked both water removed quickly recovery reach 91.1 ± 1.7% 86.5 1.9%, respectively, after being filtered column filled 200 mg at 300 mL/min 24 More importantly, filtering T natural g only 10 days, uranium-uptake amount reached 2.14 0.21 mg/g, its average speed 0.214 mg/(g·day) which very fast among reported adsorbents. This great potential massively recover from uranium-containing wastewater. Most work will provide simple general strategy greatly enhance amidoxime-functionalized area via even inspire exploration other

Language: Английский

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Benchmark uranium extraction from seawater using an ionic macroporous metal–organic framework

Energy & Environmental Science, Journal Year: 2022, Volume and Issue: 15(8), P. 3462 - 3469

Published: Jan. 1, 2022

Multiple functional groups decorated ionic macroporous metal–organic framework (MOF) for large-scale, selective uranium recovery from unspiked natural seawater.

Language: Английский

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Modulating Uranium Extraction Performance of Multivariate Covalent Organic Frameworks through Donor–Acceptor Linkers and Amidoxime Nanotraps

JACS Au, Journal Year: 2023, Volume and Issue: 3(1), P. 239 - 251

Published: Jan. 4, 2023

Covalent organic frameworks (COFs) can be designed to allow uranium extraction from seawater by incorporating photocatalytic linkers. However, often sacrificial reagents are required for separating photogenerated charges which limits their practical applications. Herein, we present a COF-based adsorption-photocatalysis strategy selective removal of uranyl in the absence reagents. A series ternary and quaternary COFs were synthesized containing electron-rich linker 2,4,6-triformylphloroglucinol as electron donor, electron-deficient 4,4'-(thiazolo[5,4-d]thiazole-2,5-diyl)dibenzaldehyde acceptor, amidoxime nanotraps capture (with [2,2'-bipyridine-5,5'-diamine-Ru(Bp)2]Cl2 secondary photosensitizer). The ordered porous structure ensured efficient mass transfer during samples, with photocatalytically generated electrons resulting reduction adsorbed U(VI) U(IV) form UO2. COF, denoted COF 2-Ru-AO, possessed high uptake capacity 2.45 mg/g/day natural good anti-biofouling abilities, surpassing most adsorbents thus far. This work shows that multivariate adsorption-photocatalysts rationally engineered efficiently stably without donors, opening pathway economic earth's oceans.

Language: Английский

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