Structural Motifs in Covalent Organic Frameworks for Photocatalysis

Advanced Functional Materials, Journal Year: 2024, Volume and Issue: unknown

Published: March 10, 2024

Abstract Covalent organic frameworks (COFs) attract significant attention due to their ordered, crystalline, porous, metal‐free, and predictable structures. These unique characteristics offer great opportunities for the diffusion transmission of photogenerated charges during photocatalysis. Currently, a considerable number COFs are used as metal‐free semiconductor photocatalysts. This review aims understand relationships between structure photocatalysis performance provides in‐depth insight into synthetic strategy improve performance. Subsequently, focuses on structural motif in sustainable photocatalytic hydrogen evolution, carbon dioxide reduction, peroxide generation, compound transformations. Last, conjunction with progress achieved challenges yet be overcome, candid discussion is undertaken regarding field COF photocatalysis, accompanied by presentation potential research avenues future directions. seeks provide readers comprehensive understanding pivotal role robust guidance innovative utilization

Language: Английский

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Boosting photoelectrocatalytic hydrogen evolution of Bi@OV-BiOBr/Cu3P high-low heterojunction with dual-channel charge transfer

Applied Catalysis B Environment and Energy, Journal Year: 2024, Volume and Issue: 350, P. 123913 - 123913

Published: April 24, 2024

A high-low heterojunction composite, oxygen vacancies BiOBr induced Bi precipitation Bi@OV-BiOBr/Cu3P with Bi-O-P chemical bond, was synthesized using a solvothermal method. Compared to single substance, the carrier lifetime and separation rate of were significantly improved. According theoretical calculations experimental results, Cu3P can be considered as hole extractor accelerate photogenerated carriers. The successful construction metal not only activate water molecules reduce dissociation energy barrier water, but also separate retain highly reductive electrons. low valent play crucial role in dual-channel charge transfer. exhibits highest hydrogen evolution up 723.85 μmol·cm−2·h−1. It displays excellent photoelectrocatalytic production stability. boosting activity stability are attributed heterojunctions transfer mechanism.

Language: Английский

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S-scheme heterojunction photocatalysts: Mechanism, challenges and opportunities

Coordination Chemistry Reviews, Journal Year: 2024, Volume and Issue: 521, P. 216177 - 216177

Published: Aug. 29, 2024

Language: Английский

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Enhancing Built‐in Electric Fields via Molecular Symmetry Modulation in Supramolecular Photocatalysts for Highly Efficient Photocatalytic Hydrogen Evolution

Angewandte Chemie International Edition, Journal Year: 2024, Volume and Issue: 63(26)

Published: April 22, 2024

Nature-inspired supramolecular self-assemblies are attractive photocatalysts, but their quantum yields limited by poor charge separation and transportation. A promising strategy for efficient transfer is to enhance the built-in electric field symmetry breaking. Herein, an unsymmetric protonation, N-heterocyclic π-conjugated anthrazoline-based photocatalyst SA-DADK-H

Language: Английский

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Hydrogen‐Bonded Organic Frameworks as an Appealing Platform for Luminescent Sensing

Advanced Functional Materials, Journal Year: 2024, Volume and Issue: 34(26)

Published: April 19, 2024

Abstract Hydrogen‐bonded organic frameworks (HOFs), a novel subclass of porous crystalline materials self‐assembled from linkers through hydrogen bonding and other intermolecular interactions, have emerged as an exciting platform for developing multifunctional materials. Recently, luminescent HOF sensors drawn considerable attention due to their unique advantages, such hydrogen‐bonding flexibility, inherent centers in linkers, ease functionalization, low density toxicity, good stability. However, comprehensive study on the design strategies, functionalities, applications HOFs sensing is lacking. In this review, uniqueness development are outlined. The principles strategies enable performance summarized, including pre‐design post‐modification with additional species. state‐of‐the‐art advances diverse overviewed, detection chemical pollutants, biomolecules, gases, physical factors like temperature mechanical forces. Moreover, current challenges corresponding potential avenues discussed. This review aims inspire more innovative research fabrication advanced functions.

Language: Английский

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Construction of COF/COF Organic S‐Scheme Heterostructure for Enhanced Overall Water Splitting

Advanced Materials, Journal Year: 2024, Volume and Issue: unknown

Published: Oct. 18, 2024

Covalent organic frameworks (COFs) as a new type of photocatalysts have shown unique advantages in visible-light-driven hydrogen evolution, while the reported overall water-splitting systems are still very rare among various COF-based photocatalysts. Herein, two COFs integrated to construct S-scheme heterojunction for improved water splitting. In this system, TpBpy-COF and COF-316 serve H

Language: Английский

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Nanofibrous Porous Organic Polymers and Their Derivatives: From Synthesis to Applications

Advanced Science, Journal Year: 2024, Volume and Issue: 11(19)

Published: March 12, 2024

Abstract Engineering porous organic polymers (POPs) into 1D morphology holds significant promise for diverse applications due to their exceptional processability and increased surface contact enhanced interactions with guest molecules. This article reviews the latest developments in nanofibrous POPs derivatives, encompassing polymer nanofibers, composites, POPs‐derived carbon nanofibers. The review delves design fabrication strategies, elucidates formation mechanisms, explores functional attributes, highlights promising applications. first section systematically outlines two primary approaches of POPs, i.e., direct bulk synthesis electrospinning technology. Both routes are discussed compared terms template utilization post‐treatments. Next, performance derivatives reviewed including water treatment, water/oil separation, gas adsorption, energy storage, heterogeneous catalysis, microwave absorption, biomedical systems. Finally, highlighting existent challenges offering future prospects concluded.

Language: Английский

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Insight into the synergistic effect of defect and strong interface coupling on ZnIn2S4/CoIn2S4 heterostructure for boosting photocatalytic H2 evolution

Journal of Energy Chemistry, Journal Year: 2024, Volume and Issue: 92, P. 151 - 161

Published: Jan. 11, 2024

Language: Английский

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Photoelectron Migration Boosted by Hollow Double‐Shell Dyads Based on Covalent Organic Frameworks for Highly Efficient Photocatalytic Hydrogen Generation

Angewandte Chemie International Edition, Journal Year: 2024, Volume and Issue: 63(17)

Published: Feb. 19, 2024

Photocatalytic hydrogen production based on noble metal-free systems is a promising technology for the conversion of solar energy into green hydrogen, it pivotal and challenging to tailor-make photocatalysts achieving high photocatalytic efficiency. Herein, we reported hollow double-shell dyad through uniformly coating covalent organic frameworks (COFs) surface Co

Language: Английский

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Magnetic-field-induced activation of S-scheme heterojunction with core–shell structure for boosted photothermal-assisted photocatalytic H2 production

Fuel, Journal Year: 2024, Volume and Issue: 373, P. 132394 - 132394

Published: July 2, 2024

Language: Английский

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