Solar‐to‐H₂O₂ Catalyzed by Covalent Organic Frameworks

Angewandte Chemie International Edition, Journal Year: 2023, Volume and Issue: 62(49)

Published: Aug. 14, 2023

Abstract Benefiting from the excellent structural tunability, robust framework, ultrahigh porosity, and rich active sites, covalent organic frameworks (COFs) are widely recognized as promising photocatalysts in chemical conversions, emerged hydrogen peroxide (H 2 O ) photosynthesis 2020. H , serving an environmental‐friendly oxidant a liquid fuel, has attracted increasing researchers to explore its potential. Over past few years, numerous COFs‐based developed with encouraging achievements production, whereas no comprehensive review articles exist summarize this specific significant area. Herein we provide systematic overview of advances challenges COFs photocatalytic production. We first introduce priorities photosynthesis. Then, various strategies improve efficiency discussed. The perspective outlook for future emerging field finally offered. This timely will pave way development highly efficient practical production value‐added chemicals not limited .

Language: Английский

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Composite materials based on covalent organic frameworks for multiple advanced applications

Exploration, Journal Year: 2023, Volume and Issue: 3(3)

Published: May 23, 2023

Covalent organic frameworks (COFs) stand for a class of emerging crystalline porous materials, which are ingeniously constructed with units through strong covalent bonds. Their excellent design capabilities, and uniform tunable pore structure make them potential materials various applications. With the continuous development synthesis technique nanoscience, COFs have been successfully combined variety functional to form COFs-based composites superior performance than individual components. This paper offers an overview different types reported so far, particular focus on applications composites. Moreover, challenges future prospects presented. We anticipate that review will provide some inspiration further

Language: Английский

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Challenges in Photocatalytic Carbon Dioxide Reduction

Precision Chemistry, Journal Year: 2024, Volume and Issue: 2(2), P. 49 - 56

Published: Jan. 17, 2024

An energy crisis and significant anthropogenic CO

Language: Английский

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In-Depth Photocatalytic Degradation Mechanism of the Extensively Used Dyes Malachite Green, Methylene Blue, Congo Red, and Rhodamine B via Covalent Organic Framework-Based Photocatalysts

Water, Journal Year: 2024, Volume and Issue: 16(11), P. 1588 - 1588

Published: June 1, 2024

Photocatalytic degradation technology has received much attention from researchers in the last few decades, due to its easy and cost-effective nature. A lot of review articles have been published on dyes via photocatalytic degradation, but most lack a detailed in-depth mechanism dyes. Numerous are available photocatalysis. Here, this article, we mainly focused complete four commonly used such as Malachite Green, Methylene Blue, Congo Red Rhodamine B, which will be highly useful for new that work dyes’ degradation. Initially, various aspects included comprehensively. The main focus was covalent organic framework-based photocatalysts their porous nature unique properties. Various synthesis routes performance frameworks composite highlighted article. In section stimulus mentioned properties, uses, toxicity, through paths into environmentally friendly less-harmful compounds presence photocatalysts. Factors effecting economic cost, challenges future were also This article those search complex dye molecules.

Language: Английский

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Nano-enabled gas separation membranes: Advancing sustainability in the energy-environment Nexus

The Science of The Total Environment, Journal Year: 2024, Volume and Issue: 944, P. 173264 - 173264

Published: May 20, 2024

Language: Английский

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A Ligand‐Directed Spatial Regulation to Structural and Functional Tunability in Aggregation‐Induced Emission Luminogen‐Functionalized Organic–Inorganic Nanoassemblies

Advanced Materials, Journal Year: 2024, Volume and Issue: 36(27)

Published: April 22, 2024

Abstract Aggregation‐induced emission luminogen (AIEgen)‐functionalized organic–inorganic hybrid nanoparticles (OINPs) are an emerging category of multifunctional nanomaterials with vast potential applications. The spatial arrangement and positioning AIEgens inorganic compounds in AIEgen‐functionalized OINPs determine the structures, properties, functionalities self‐assembled nanomaterials. In this work, a facile general emulsion self‐assembly tactic for synthesizing well‐defined is proposed by coassembling alkane chain‐functionalized hydrophobic organic AIEgens. As proof concept, structural evolution plasmonic‐fluorescent (PFNPs) from concentric circle to core shell then Janus structures demonstrated using chain‐modified AuNPs as building blocks. position signal nanocomposite controlled varying ligand length density on AuNP surface. mechanism behind formation various PFNP nanostructures also elucidated through experiments theoretical simulation. obtained PFNPs diverse exhibit spatially tunable optical photothermal properties advanced applications multicolor multimode immunolabeling sterilization. This work presents innovative synthetic approach constructing compositions, functionalities, thereby championing progressive development these OINPs.

Language: Английский

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Advances in reticular materials for sustainable rare earth element recovery

Coordination Chemistry Reviews, Journal Year: 2024, Volume and Issue: 522, P. 216199 - 216199

Published: Sept. 13, 2024

Language: Английский

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Metal-organic frameworks and their derivatives for sustainable flame-retardant polymeric materials

Advanced Nanocomposites, Journal Year: 2024, Volume and Issue: 2, P. 1 - 14

Published: Nov. 5, 2024

Language: Английский

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Porphyrin-based frameworks and derivatives for the oxygen reduction reaction

Materials Today Catalysis, Journal Year: 2024, Volume and Issue: 4, P. 100044 - 100044

Published: Feb. 20, 2024

The global energy crisis and environmental pollution issues caused by the continuous consumption of fossil fuels are increasingly becoming severe. Developing clean sustainable hydrogen (H2) corresponding storage conversion devices have attracted increasing attention. utilization H2 highly depends on fuel cell (FC). However, slow kinetics oxygen reduction reaction (ORR) cathode FC cannot be improved without efficient catalysts. Currently, precious metal platinum (Pt) its alloys commonly used catalysts for ORR process. scarcity high cost Pt hinder their large-scale practical application. To replace typical Pt-based catalysts, non-precious electrocatalysts been investigated ORR. Inspired catalytic active center Fe porphyrin cytochrome c oxidase in nature, metalloporphyrin-based frameworks derivatives become promising due to abundant conjugated electronic structure, tunable functional groups, large specific surface area. First, this review briefly introduces porphyrins mechanisms. Second, recent progress porphyrin-based including frameworks, framework@substrate composites, framework-based was summarized. Porphyrin-based mainly include metal-organic (MOFs), covalent organic (COFs), hydrogen-bonded (HOFs), polymers constructed with building blocks. composites were usually assembled improve electron transfer rate frameworks. further conductivity, derivatives, named metal, nitrogen-doped carbon (M-N-C) materials, synthesized through pyrolyzing at temperatures. Finally, research challenges directions discussed. This is meaningful enlightening designing developing other

Language: Английский

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Covalent organic frameworks and their composites as enhanced energy storage materials

Chemical Communications, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 1, 2025

Fabrication, and preparation methods of COFs along with a complete review the last one decade's progress in field energy storage conversion devices, notably batteries, capacitors fuel cells, has been presented.

Language: Английский

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