Metal‐Organic Frameworks for Photocatalytic Water Splitting and CO₂Reduction

Angewandte Chemie International Edition, Journal Year: 2023, Volume and Issue: 62(15)

Published: Jan. 23, 2023

Abstract Photocatalytic water splitting and carbon dioxide (CO 2 ) reduction provide promising solutions to global energy environmental issues. In recent years, metal‐organic frameworks (MOFs), a class of crystalline porous solids featuring well‐defined tailorable structures as well high surface areas, have captured great interest toward photocatalytic CO reduction. this review, the semiconductor‐like behavior MOFs is first discussed. We then summarize advances in over MOF‐based materials focus on unique advantage for clarifying structure‐property relationship photocatalysis. addition, some representative characterization techniques been presented unveil kinetics reaction intermediates systems. Finally, challenges, perspectives future directions are proposed.

Language: Английский

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Metal–organic frameworks and derived materials as photocatalysts for water splitting and carbon dioxide reduction

Coordination Chemistry Reviews, Journal Year: 2022, Volume and Issue: 469, P. 214664 - 214664

Published: June 24, 2022

Language: Английский

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Advances of MOFs and COFs for photocatalytic CO2 reduction, H2 evolution and organic redox transformations

Coordination Chemistry Reviews, Journal Year: 2023, Volume and Issue: 490, P. 215210 - 215210

Published: May 21, 2023

Language: Английский

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Metal–organic framework heterojunctions for photocatalysis

Chemical Society Reviews, Journal Year: 2024, Volume and Issue: 53(6), P. 3002 - 3035

Published: Jan. 1, 2024

The present review summarizes the current state-of-the-art in MOF-based heterojunctions three important photocatalytic processes: hydrogen evolution reaction, CO 2 photoreduction and photodegradation of dyes.

Language: Английский

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Photocatalytic degradation by TiO2-conjugated/coordination polymer heterojunction: Preparation, mechanisms, and prospects

Applied Catalysis B Environment and Energy, Journal Year: 2023, Volume and Issue: 344, P. 123605 - 123605

Published: Dec. 19, 2023

Language: Английский

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Molecular Catalysis of Energy Relevance in Metal–Organic Frameworks: From Higher Coordination Sphere to System Effects

Chemical Reviews, Journal Year: 2023, Volume and Issue: 123(10), P. 6545 - 6611

Published: May 15, 2023

The modularity and synthetic flexibility of metal-organic frameworks (MOFs) have provoked analogies with enzymes, even the term MOFzymes has been coined. In this review, we focus on molecular catalysis energy relevance in MOFs, more specifically water oxidation, oxygen carbon dioxide reduction, as well hydrogen evolution context MOF-enzyme analogy. Similar to catalyst encapsulation MOFs leads structural stabilization under turnover conditions, while motifs that are synthetically out reach a homogeneous solution phase may be attainable secondary building units MOFs. Exploring unique possibilities specific groups second third coordination sphere around catalytic active site incorporated facilitate catalysis. A key difference between enzymes is fact concentrations latter often considerably higher, leading charge mass transport limitations severe than those enzymes. High also put limit distance catalysts, thus available space for higher engineering. As important MOF-borne catalysis, system perspective chosen highlight concepts address issue. detailed section light-driven reactivity sets stage concise review currently literature utilizing principles from Nature design preparation MOF-based materials.

Language: Английский

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Ordered Integration and Heterogenization of Catalysts and Photosensitizers in Metal-/Covalent-Organic Frameworks for Boosting CO₂ Photoreduction

Accounts of Chemical Research, Journal Year: 2023, Volume and Issue: 56(19), P. 2676 - 2687

Published: Sept. 14, 2023

ConspectusSolar-driven CO2 reduction into value-added chemicals, such as CO, HCOOH, CH4, and C2+ products, has been regarded a potential way to alleviate environmental pollution the energy crisis. In past decades, numerous pioneered homogeneous catalytic systems composed of soluble photosensitizers (PSs) active sites (CASs) have explored for photoreduction. Nevertheless, inefficient electron migration based on random collision between CASs PSs in usually causes mediocre performance. Moreover, relatively poor separation/recycling capability inevitably reduced their reusability practicality. The rational combination proven play critical roles development highly efficient heterogeneous catalysts improve performance, anchoring them onto solid matrixes or connecting through bridging ligands. However, developing effective assembly strategies achieve ordered orientation uniform heterogenization remains great challenge, mainly due lack crystallinity transformation structural tailoring ability traditional catalysts. synthesis strategies, many photocatalytic are still unable high transformation.Metal-organic frameworks (MOFs) covalent-organic (COFs) recently attracted broad interest toward photocatalysis because diverse precursors, well-defined tailorable structures, abundant exposed surface areas, etc. Especially, MOFs COFs beneficial improved light harvesting charge separation, greatly helping address aforementioned challenges. crystalline structures facilitate establishment structure-activity relationship. Therefore, it is increasingly important summarize integration provide deep insight MOF/COF-based photocatalysts.In this Account, we photoconversion describe relationships guide design Given unique features COFs, emphasized optimize including confinement nanoparticles (NPs) photosensitizing frameworks, co-coordination CASs, ligand-to-metal charge-transfer secondary building units frameworks. activity, selectivity, sacrificial agent, stability these were then discussed. More importantly, powerful platforms understand key steps boosting photoreduction exploring mechanism, involving harvesting, electron-hole separation/migration, redox reactions. Finally, perspective challenge MOF/COF further proposed It expected that Account would with afford significant inspiration enhanced performance catalysis.

Language: Английский

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Near‐Infrared Light‐Driven Photocatalysis with an Emphasis on Two‐Photon Excitation: Concepts, Materials, and Applications

Advanced Materials, Journal Year: 2023, Volume and Issue: 36(5)

Published: Sept. 13, 2023

Efficient utilization of sunlight in photocatalysis is widely recognized as a promising solution for addressing the growing energy demand and environmental issues resulting from fossil fuel consumption. Recently, there have been significant developments various near-infrared (NIR) light-harvesting systems artificial photosynthesis photocatalytic remediation. This review provides an overview most recent advancements NIR light through creation novel nanostructured materials molecular photosensitizers, well modulating strategies to enhance processes. A special focus given emerging two-photon excitation photocatalysis. The unique features limitations different are critically evaluated. In particular, it highlights advantages utilizing compared UV-visible irradiation one-photon excitation. Ongoing challenges potential solutions future exploration light-responsive also discussed.

Language: Английский

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MOFs materials as photocatalysts for CO2 reduction: Progress, challenges and perspectives

Carbon Capture Science & Technology, Journal Year: 2024, Volume and Issue: 11, P. 100191 - 100191

Published: Jan. 19, 2024

Photocatalytic reduction of carbon dioxide (CO2) presents a pivotal solution to address meteorological and ecological challenges. Currently, metal-organic frameworks (MOFs) with their crystalline porosity, adjustable structures, diverse chemical functionalities have garnered significant attention in the realm photocatalytic CO2 reduction. This review provides brief introduction MOF material applications Then, it undertakes comprehensive examination MOFs, summarizing key attributes, including large surface area, structural multifunctionalities, responsiveness visible light, along an analysis heterojunctions methods preparation. Additionally, elucidates fundamental principle photocatalysis reduction, encompassing both half overall reactions. Furthermore, classification MOF-based materials is explored, proposed mechanism for update on recent developments this field. Finally, outlines challenges potential opportunities utilizing MOFs offering valuable insights scholars seeking innovative approaches not only enhance but also advance other processes.

Language: Английский

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Water‐Stable High‐Entropy Metal‐Organic Framework Nanosheets for Photocatalytic Hydrogen Production

Advanced Materials, Journal Year: 2024, Volume and Issue: 36(26)

Published: April 8, 2024

Abstract Metal‐organic frameworks (MOFs) have emerged as promising platforms for photocatalytic hydrogen evolution reaction (HER) due to their fascinating physiochemical properties. Rationally engineering the compositions and structures of MOFs can provide abundant opportunities optimization. In recent years, high‐entropy materials (HEMs) demonstrated great potential in energy environment fields. However, there is still no report on development (HE‐MOFs) HER aqueous solution. Herein, authors synthesis a novel p ‐type HE‐MOFs single crystal (HE‐MOF‐SC) corresponding nanosheets (HE‐MOF‐NS) capable realizing visible‐light‐driven HER. Both HE‐MOF‐SC HE‐MOF‐NS exhibit higher activity than all single‐metal MOFs, which are supposed be ascribed interplay between different metal nodes that enables more efficient charge transfer. Moreover, impressively, demonstrates much its thin thickness enhanced surface area. At optimum conditions, rate H 2 ≈13.24 mmol h −1 g , among highest values reported water‐stable MOF photocatalysts. This work highlights importance developing advanced toward photocatalysis.

Language: Английский

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