Nano Energy, Journal Year: 2025, Volume and Issue: unknown, P. 110682 - 110682
Published: Jan. 1, 2025
Language: Английский
Environmental Science & Technology, Journal Year: 2024, Volume and Issue: unknown
Published: Aug. 14, 2024
Large quantities of uranium-containing radioactive wastewater are typically generated during nuclear fuel cycle processes. Despite significant efforts, efficient capture migratable hexavalent uranium U(VI) is still a huge challenge due to its acidity, radioactivity, coexisting organics, and high impurity cation abundance in wastewater. Herein, we have fabricated all-polymer-based 0D/2D C4N/C6N7 homostructure hybrids with an S-scheme electronic configuration by coordinating the band engineering semiconductors enrich species from complex environment. The sample can over 97% actual concentration industrial reprocessing wastewater; also, enrichment ratio exceeds 95% when irradiation dose (including α, β, γ) up 100 kGy. Density functional theory X-ray absorption spectroscopy demonstrate that aggregation charge carriers on surface regulates electron-rich microenvironment, thus accelerating reduction conversion single electron reaction disproportionation. It expected this work provide more insight into other materials, thereby promoting removal advancements
Language: Английский
Citations
16
Eco-Environment & Health, Journal Year: 2023, Volume and Issue: 2(4), P. 252 - 256
Published: Sept. 9, 2023
Japan recently announced the plan to discharge over 1.2 million tons of radioactive water into Pacific Ocean, which contained hazardous radionuclides such as
Language: Английский
Citations
31
ACS Applied Materials & Interfaces, Journal Year: 2023, Volume and Issue: 15(40), P. 46952 - 46961
Published: Sept. 29, 2023
Uranium extraction from seawater is a potential technique that will change the world. Adsorption capacity, selectivity, and antibacterial ability for high-performance uranium adsorbents remain major challenges. In this study, dual-ligand zeolitic imidazolate framework 8 (ZIF-8) decorated with cyano groups (ZIF-8-CN) prepared via facile blend strategy at room temperature. Owing to abundant mesopores nitrogen functional groups, ZIF-8-CN shows an extremely high uptake of 1000 mg/g pH = 6, which 2.42 times pristine ZIF-8. Noteworthily, possesses 16.2 adsorption in natural within 28 days, distribution coefficient (Kd 3.25 × 106 mL/g) far greater than other coexisting metal ions, demonstrating marked preference uranyl ions. Except coordination between imidazole, provide additional sites preferentially bind uranyl, thereby strengthening affinity uranyl. Notably, displays ultrastrong antimicrobial against both Escherichia coli Staphylococcus aureus, greatly desired scale-up marine tests. Our study demonstrates capture provides wide scope application mixed-ligand MOFs.
Language: Английский
Citations
27
Critical Reviews in Environmental Science and Technology, Journal Year: 2023, Volume and Issue: unknown, P. 1 - 22
Published: Nov. 25, 2023
Green and clean photocatalytic technology has been extensively applied to degrade environmental pollutants produce renewable energy, which is an important mean solve energy problems. However, limited the cost efficiency of photocatalysts, it difficult realize large-scale application. In recent years, single-atom photocatalysts (SAPCs) have added new vitality into this field. SAPCs active homogeneous centers, heterogeneous structures, stability, high catalytic activity selectivity properties. The related researches on its synthesis, characterization application become a hot spot in many fields. review, H2 production, CO2 reduction, nitrogen fixation, NOx removal, volatile organic compounds pollutant degradation, reduction radionuclides heavy metal ions using are reviewed. advantages disadvantages six kinds substrates analyzed, design strategies carefully summarized. mechanisms photocatalysis, isolated-site reactions, photogenerated e−-h+ transfer construction efficient photoactivation cycles discussed. Finally, future development trend prospected. This review will provide reference for SAPCs.
Language: Английский
Citations
27
Journal of Hazardous Materials, Journal Year: 2023, Volume and Issue: 465, P. 133320 - 133320
Published: Dec. 20, 2023
Language: Английский
Citations
25
Journal of Hazardous Materials, Journal Year: 2023, Volume and Issue: 464, P. 133002 - 133002
Published: Nov. 15, 2023
Language: Английский
Citations
24
Nature Communications, Journal Year: 2024, Volume and Issue: 15(1)
Published: Oct. 23, 2024
Efficient extraction of uranium from seawater is expected to provide virtually infinite fuel sources power nuclear reactors and thus enable sustainable development energy. The efficiency for greatly depends on the availability active adsorption sites adsorbents. Maximization utilization rate binding in adsorbent vital improving capacity. Herein, micro-redox functioned by Cu(I)/Cu(II) conversion are constructed internally an bearing both amidoxime carboxyl groups induce regeneration inactivated enhance capture. This has high capacity (962.40 mg-U/g-Ads), superior anti-fouling ability as well excellent uptake (14.62 mg-U/g-Ads) natural after 56 days, placing it at top high-performance sorbent materials harvest seawater.
Language: Английский
Citations
13
Small, Journal Year: 2024, Volume and Issue: 20(26)
Published: Jan. 21, 2024
Abstract Nuclear energy holds great potential to facilitate the global transition and alleviate increasing environmental issues due its high density, stable output, carbon‐free emission merits. Despite being limited by insufficient terrestrial uranium reserves, extraction from seawater (UES) can offset gap. However, low concentration, complicated speciation, competitive metal ions, inevitable marine interference remarkably affect kinetics, capacity, selectivity, sustainability of UES materials. To date, massive efforts have been made with varying degrees success pursue a desirable performance on various nanomaterials. Nevertheless, comprehensive systematic coverage discussion emerging materials presenting fast‐growing progress this field is still lacking. This review thus challenges position emphatically focuses topic covering current mainstream technologies Specifically, elucidates causality between physiochemical properties induced intellectual design strategies performances further dissects relationships materials‐properties‐activities corresponding mechanisms in depth. envisaged inspire innovative ideas bring technical solutions for developing technically economically viable
Language: Английский
Citations
12
EcoEnergy, Journal Year: 2024, Volume and Issue: 2(2), P. 205 - 219
Published: April 8, 2024
Abstract With the fast development of nuclear energy peaceful utilization, large amounts U(VI) are not only required to be extracted from solutions for sustainable fuel supply but also inevitably released into environment result in pollution, which is hazardous human health. Thereby, selective extraction aqueous crucial pollution treatment and industry development. In this minireview, we summarized by porous nanomaterials (i.e., carbon nanomaterials, covalent organic frameworks, metal other nanomaterials) using different techniques, that is, sorption, electrocatalysis, photocatalysis, strategies. The efficient high ability dependent on properties used techniques. surface areas, abundant active sites, functional groups sorption U(VI), special such as amidoxime more critical extraction. electrocatalytic related especially single atom electrode. groups, bandgap, electron transfer pathway donor–acceptor structures photocatalysts contribute photocatalytic U(VI). interaction mechanisms discussed spectroscopic analysis computational simulation at molecular level. end, challenges prospectives described.
Language: Английский
Citations
11
Separation and Purification Technology, Journal Year: 2024, Volume and Issue: 342, P. 126963 - 126963
Published: March 1, 2024
Language: Английский
Citations
10