A Review of MOFs and Their Composites‐Based Photocatalysts: Synthesis and Applications

Advanced Functional Materials, Journal Year: 2021, Volume and Issue: 31(37)

Published: June 26, 2021

Abstract Photocatalysis is considered to be a green and environment‐friendly technology since it can convert solar energy into other types of chemical energies. Over the past several years, metal‐organic frameworks (MOFs)‐based photocatalysts have received remarkable research interest due their unique morphology, high photocatalytic performance, good stability, easy synthesis, low cost. In this review, synthetic strategies developing MOFs‐based are first introduced. Second, recent progress in fabrication various MOFs composites summarized. Third, different applications including hydrogen evolution reaction, oxygen overall water splitting, nitrogen reduction carbon dioxide reaction as well photodegradation organic pollutants summed up. Finally, challenges some suggestions for future development MOFs‐ composites‐based also highlighted. It expected that report will help researchers systematically devise develop highly efficient based on composites.

Language: Английский

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Thermo-, Electro-, and Photocatalytic CO₂ Conversion to Value-Added Products over Porous Metal/Covalent Organic Frameworks

Accounts of Chemical Research, Journal Year: 2022, Volume and Issue: 55(20), P. 2978 - 2997

Published: Sept. 26, 2022

ConspectusThe continuing increase of the concentration atmospheric CO2 has caused many environmental issues including climate change. Catalytic conversion using thermochemical, electrochemical, and photochemical methods is a potential technique to decrease simultaneously obtain value-added chemicals. Due high energy barrier however, this method still far from large-scale applications which requires activity, selectivity, stability. Therefore, development efficient catalysts convert different products urgent. With their well-engineered pores chemical compositions, surface area, elevated adsorption capability, adjustable active sites, porous crystalline frameworks metal-organic (MOFs) covalent organic (COFs) are materials for catalytic conversion. Here, we summarize our recent work on MOFs COFs thermocatalytic, electrocatalytic, photocatalytic describe structure-activity relationships that could guide design effective catalysts.The first section paper describes imidazolium-functionalized MOFs, liquid cationic with nucleophilic halogen ions, can promote thermocatalytically cycloaddition reaction epoxides toward cyclic carbonates at one bar pressure. A MOF takes role reservoir tackle low local concentrations in gas-liquid-solid heterogeneous reactions. Imidazolium-functionalized ions avoid use cocatalysts, leads milder more facile experimental conditions separation processes.In dealing electrocatalytic reduction (CO2RR), developed series conductive framework fast electron transmission capabilities, afford current densities outperform traditional COF have been reported. The intrinsically two-dimensional 2D nanosheets based fully π-conjugated phthalocyanine motif excellent transport capability were prepared, strong transporters also integrated into metalloporphyrin-based CO2RR. Cu2O quantum dots Cu nanoparticles (NPs) be uniformly dispersed MOFs/COFs synergistic and/or tandem electrocatalysts, achieve highly selective production CH4 or C2H4 CO2RR.A third efforts facilitate electron-hole photocatalysis. Our focus regulation coordination spheres fabrication architecture heterojunctions, engineering films reduction.Finally, discuss several problems associated studies consider some prospects

Language: Английский

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Dislocated Bilayer MOF Enables High‐Selectivity Photocatalytic Reduction of CO₂ to CO

Advanced Materials, Journal Year: 2023, Volume and Issue: 35(10)

Published: Jan. 2, 2023

The highly selective photoreduction of CO2 into valuable small-molecule chemical feedstocks such as CO is an effective strategy for addressing the energy crisis and environmental problems. However, it remains a challenge because complex process usually generates multiple possible products requires subsequent separation step. In this paper, 2D monolayer bilayer porphyrin-based metal-organic frameworks (MOFs) are successfully constructed by adjusting reaction temperature solvent polarity with 5,10,15,20-tetrakis(4-pyridyl)porphyrin light-harvesting ligand. MOF low-dimensional special structure in which upper lower layers arranged dislocation bridged halogen ions. This exhibits 100% ultra-high selectivity reduction to under simulated sunlight without any cocatalyst or photosensitizer can be recycled at least three times. intrinsic mechanism photocatalytic explored through experimental characterization density functional theory (DFT) calculations. work shows that rational design number structures tune stability these opens new avenue photocatalysts.

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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Recent advances in Metal-Organic Frameworks-based materials for photocatalytic selective oxidation

Coordination Chemistry Reviews, Journal Year: 2021, Volume and Issue: 450, P. 214240 - 214240

Published: Oct. 13, 2021

Language: Английский

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The key role of carboxylate ligands in Ru@Ni-MOFs/NF in promoting water dissociation kinetics for effective hydrogen evolution in alkaline media

Chemical Engineering Journal, Journal Year: 2022, Volume and Issue: 451, P. 138618 - 138618

Published: Aug. 12, 2022

Language: Английский

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Iron-based metal–organic frameworks and their derived materials for photocatalytic and photoelectrocatalytic reactions

Coordination Chemistry Reviews, Journal Year: 2023, Volume and Issue: 499, P. 215538 - 215538

Published: Nov. 1, 2023

Language: Английский

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A review on photo-, electro- and photoelectro- catalytic strategies for selective oxidation of alcohols

Journal of Energy Chemistry, Journal Year: 2022, Volume and Issue: 77, P. 80 - 118

Published: Nov. 1, 2022

Language: Английский

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Recent advances in metal-organic frameworks: Synthesis, application and toxicity

The Science of The Total Environment, Journal Year: 2023, Volume and Issue: 902, P. 165944 - 165944

Published: Aug. 4, 2023

Language: Английский

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Metal–Organic Frameworks as Electrocatalysts

Angewandte Chemie International Edition, Journal Year: 2022, Volume and Issue: 62(9)

Published: Dec. 5, 2022

Abstract Transition metal complexes are well‐known homogeneous electrocatalysts. In this regard, metal–organic frameworks (MOFs) can be considered as an ensemble of transition ordered in a periodic arrangement. addition, MOFs have several additional positive structural features that make them suitable for electrocatalysis, including large surface area, high porosity, and content accessible with exchangeable coordination positions. The present review describes the current state use electrocatalysts, both host electroactive guests their direct electrocatalytic activity, particularly case bimetallic MOFs. field MOF‐derived materials is purposely not covered, focusing on or its composites Special attention has been paid to strategies overcome poor electrical conductivity limited stability.

Language: Английский

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