Orderly Porous Covalent Organic Frameworks-based Materials: Superior Adsorbents for Pollutants Removal from Aqueous Solutions

The Innovation, Journal Year: 2021, Volume and Issue: 2(1), P. 100076 - 100076

Published: Jan. 10, 2021

Covalent organic frameworks (COFs) are a new type of crystalline porous polymers known for chemical stability, excellent structural regularity, robust framework, and inherent porosity, making them promising materials capturing various types pollutants from aqueous solutions. This review thoroughly presents the recent progress advances COFs COF-based as superior adsorbents efficient removal toxic heavy metal ions, radionuclides, pollutants. Information about interaction mechanisms between summarized macroscopic microscopic standpoints, including batch experiments, theoretical calculations, advanced spectroscopy analysis. The adsorption properties assessed compared with other widely used adsorbents. Several commonly strategies to enhance materials' performance relationship property sorption ability also discussed. Finally, summary perspective on opportunities challenges proposed provide some inspiring information designing fabricating environmental pollution management.

Language: Английский

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Application of MOFs and COFs for photocatalysis in CO2 reduction, H2 generation, and environmental treatment

EnergyChem, Journal Year: 2022, Volume and Issue: 4(4), P. 100078 - 100078

Published: June 25, 2022

Language: Английский

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Advanced photocatalysts for uranium extraction: Elaborate design and future perspectives

Coordination Chemistry Reviews, Journal Year: 2022, Volume and Issue: 467, P. 214615 - 214615

Published: May 18, 2022

Language: Английский

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Tuning excited state electronic structure and charge transport in covalent organic frameworks for enhanced photocatalytic performance

Nature Communications, Journal Year: 2023, Volume and Issue: 14(1)

Published: Feb. 27, 2023

Covalent organic frameworks (COFs) represent an emerging class of photocatalysts. However, their complicated structures lead to indeterminacy about photocatalytic active sites and reaction mechanisms. Herein, we use reticular chemistry construct a family isoreticular crystalline hydrazide-based COF photocatalysts, with the optoelectronic properties local pore characteristics COFs modulated using different linkers. The excited state electronic distribution transport pathways in are probed host experimental methods theoretical calculations at molecular level. One our developed (denoted as COF-4) exhibits remarkable electron utilization efficiency charge transfer properties, achieving record-high uranium extraction performance ~6.84 mg/g/day natural seawater among all techniques reported so far. This study brings new understanding operation COF-based guiding design improved photocatalysts for many applications.

Language: Английский

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Functionalized Iron–Nitrogen–Carbon Electrocatalyst Provides a Reversible Electron Transfer Platform for Efficient Uranium Extraction from Seawater

Advanced Materials, Journal Year: 2021, Volume and Issue: 33(51)

Published: Oct. 4, 2021

Uranium extraction from seawater provides an opportunity for sustainable fuel supply to nuclear power plants. Herein, adsorption-electrocatalysis strategy is demonstrated efficient uranium using a functionalized iron-nitrogen-carbon (Fe-Nx -C-R) catalyst, comprising N-doped carbon capsules supporting FeNx single-atom sites and surface chelating amidoxime groups (R). The bring hydrophilicity the adsorbent offer surface-specific binding UO22+ capture. site-isolated centres reduce adsorbed UO2+ . Subsequently, through electrochemical reduction of sites, unstable U(V) ions are reoxidized U(VI) in presence Na+ resulting generation solid Na2 O(UO3 ·H2 O)x , which can easily be collected. Fe-Nx -C-R reduced concentration ≈3.5 ppb below 0.5 with calculated capacity ≈1.2 mg g-1 within 24 h. To best knowledge, developed system first use adsorption uranyl electrodeposition .H2 seawater. important discoveries guide technology development

Language: Английский

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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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Porous organic polymers as a platform for sensing applications

Chemical Society Reviews, Journal Year: 2022, Volume and Issue: 51(6), P. 2031 - 2080

Published: Jan. 1, 2022

Sensing analysis is significantly important for human health and environmental safety. In this review, POPs used as platforms various sensing applications have been summarized discussed.

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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ZnFe2O4/g-C3N4 S-scheme photocatalyst with enhanced adsorption and photocatalytic activity for uranium(VI) removal

Chemical Engineering Journal, Journal Year: 2021, Volume and Issue: 415, P. 129002 - 129002

Published: Feb. 21, 2021

Language: Английский

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Metalated covalent organic frameworks: from synthetic strategies to diverse applications

Chemical Society Reviews, Journal Year: 2022, Volume and Issue: 51(15), P. 6307 - 6416

Published: Jan. 1, 2022

This review highlights the recent advances of metalated covalent organic frameworks, including synthetic strategies and applications, discusses current challenges future directions.

Language: Английский

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