Photocatalytic CO2 reduction over metal-organic framework-based materials

Coordination Chemistry Reviews, Journal Year: 2020, Volume and Issue: 412, P. 213262 - 213262

Published: March 10, 2020

Language: Английский

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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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Metal–Organic Frameworks as Photocatalysts for Solar-Driven Overall Water Splitting

Chemical Reviews, Journal Year: 2022, Volume and Issue: 123(1), P. 445 - 490

Published: Dec. 12, 2022

Metal–organic frameworks (MOFs) have been frequently used as photocatalysts for the hydrogen evolution reaction (HER) using sacrificial agents with UV–vis or visible light irradiation. The aim of present review is to summarize use MOFs solar-driven targeting overcome current efficiency limitations in overall water splitting (OWS). Initially, fundamentals photocatalytic OWS under solar irradiation are presented. Then, different strategies that can be implemented on adapt them photocatalysis discussed detail. Later, most active reported until now HER and/or oxygen (OER) critically commented. These studies taken precedents discussion existing sunlight requirements met at large scale also discussed. last section this provides a summary state field and comments future prospects could bring closer commercial application.

Language: Английский

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Applications of Metal‐Organic Frameworks in Water Treatment: A Review

Small, Journal Year: 2021, Volume and Issue: 18(11)

Published: Dec. 8, 2021

Abstract The ever‐expanding scale of industry and agriculture has led to the gradual increase pollutants (e.g., heavy metal ions, synthetic dyes, antibiotics) in water resources, ecology wastewater are grave problems that need be solved urgently attracted widespread attention from research community recent years. Metal‐organic frameworks (MOFs) a type organic–inorganic hybrid material with distinctive 3D network crystal structure. Lately, MOFs have made striking progress fields adsorption, catalytic degradation, biomedicine on account their large specific surface well‐developed pore This review summarizes latest achievements preparation pristine MOFs, MOF composites, derivatives for various applications including removal organic other harmful substances sewage. Furthermore, working mechanisms utilizing photocatalytic membrane separation technologies also briefly described It is expected this will provide inspiration references synthesis as well composites excellent treatment performance.

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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Semiconducting Metal–Organic Frameworks Decorated with Spatially Separated Dual Cocatalysts for Efficient Uranium(VI) Photoreduction

Advanced Functional Materials, Journal Year: 2022, Volume and Issue: 32(20)

Published: March 25, 2022

Abstract Reduction of soluble hexavalent uranium (U(VI)) to sparingly tetravalent (U(IV)) with semiconductor photocatalysts is recognized as a novel, green, and simple U‐extraction method. Furthermore, effective charge separation utilization are critical factors achieve high‐efficiency U(VI) photoreduction. Herein, UiO‐66‐based heterostructured photocatalyst (MnO x /UiO‐66/Ti 3 C 2 T ) spatially separated dual cocatalysts nanoparticles Ti MXene nanosheets) successfully developed for efficient photoreduction without sacrificial agents. As co‐catalysts, MnO favor the trapping holes, while nanosheets tend collect electrons. Consequently, photogenerated holes electrons flow into out photocatalyst, respectively, achieving required by remove U(VI). Impressively, removal ratio via reaches 98.4% in solution after 60 min, photoreaction rate constant 0.0948 min −1 . Moreover, exhibits brilliant extraction capacity various wastewater U(VI)‐spiked real seawater. Further mechanistic studies indicates that transferred from conduction band UiO‐66 reduce generate ·O – , further leading stable crystal phase (UO )O ·2H O. extracted oxidize water.

Language: Английский

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Recent Advances in Metal–Organic Frameworks Derived Nanocomposites for Photocatalytic Applications in Energy and Environment

Advanced Science, Journal Year: 2021, Volume and Issue: 8(14)

Published: May 24, 2021

Solar energy is a key sustainable resource, and materials with optimal properties are essential for efficient solar energy-driven applications in photocatalysis. Metal-organic frameworks (MOFs) excellent platforms to generate different nanocomposites comprising metals, oxides, chalcogenides, phosphides, or carbides embedded porous carbon matrix. These MOF derived offer symbiosis of like high crystallinities, inherited morphologies, controllable dimensions, tunable textural properties. Particularly, adjustable band positions achieved by situ tailored self/external doping surface functionalities make these promising photocatalysts. Despite some progress this field, fundamental questions remain be addressed further understand the relationship between structures, properties, photocatalytic performance nanocomposites. In review, synthesis approaches including self-template external-template methods produce various dimensions (0D, 1D, 2D, 3D), chemical compositions, bandgaps, comprehensively summarized analyzed. The state-of-the-art water splitting H

Language: Английский

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Recent advances in application of metal-organic frameworks (MOFs) as adsorbent and catalyst in removal of persistent organic pollutants (POPs)

Journal of Hazardous Materials, Journal Year: 2022, Volume and Issue: 442, P. 130127 - 130127

Published: Oct. 7, 2022

The presence of persistent organic pollutants (POPs) in the aquatic environment is causing widespread concern due to their bioaccumulation, toxicity, and possible environmental risk. These contaminants are produced daily large quantities released into water bodies. Traditional wastewater treatment plants ineffective at degrading these pollutants. As a result, development long-term effective POP removal techniques critical. In water, adsorption photocatalytic degradation POPs have been identified as energy cost-efficient solutions. Both technologies received lot attention for efforts treat world's wastewater. Photocatalytic promising, effective, long-lasting method, while represents simple, practical particularly decentralized systems isolated areas. It critical develop new adsorbents/photocatalysts with desired structure, tunable chemistry, maximum sites highly efficient POPs. class recently created multifunctional porous materials, Metal-organic frameworks (MOFs) offer tremendous prospects adsorptive remediation. This review defines discusses current research on using emerging MOFs each type

Language: Английский

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Photocatalytic remediation of persistent organic pollutants (POPs): A review

Arabian Journal of Chemistry, Journal Year: 2020, Volume and Issue: 13(11), P. 8309 - 8337

Published: May 4, 2020

The release of persistent organic pollutants (POPs) into the environment is an issue global concern, as chemicals are stable over a prolonged period resulting in their accumulation many animals and plants. Although POPs banned several countries, have been proposed POP candidates to be added existing compounds defined by United Nations Stockholm Convention committee. To address safe disposal clean-up such chemicals, new, especially cost-effective, remediation technologies for urgently required. This review focuses on types processes available removal. Particular attention paid towards photocatalysis using nanocatalysts this review, due effectiveness degradation, technological feasibility, energy cost-efficiency. underlying principles key mechanisms photocatalysts based TiO2 materials, metal oxides, light-assisted Fenton systems, framework materials e.g. metal-organic frameworks polyoxometalates, including metal-free hybrid cleanup described advance applications solving contamination environment. improvements photocatalytic performance removal mechanism conventional modified process, design optimization photoreactors, integration technology critical challenges emerging require intensive research forthcoming future.

Language: Английский

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Application of metal organic framework in wastewater treatment

Green Energy & Environment, Journal Year: 2022, Volume and Issue: 8(3), P. 698 - 721

Published: March 16, 2022

Water pollution is an increasingly serious environmental problem because many pollutants have carcinogenic effects on humans and aquatic organisms. Metal organic framework (MOF) made up of metal ions multifunctional ligands has been one the most concerned materials its adjustable regular pore structure. MOFs always shown attractive advantages in membrane separation adsorption technologies, among which water-stable are particularly prominent wastewater treatment (WWT) applications. This review systematically summarizes application MOF membranes filtration, pervaporation distillation. Also, mechanisms heavy metals, dyes antibacterials concluded. In order to tap full potential pristine sustainable treatment, current challenges discussed detail future research directions proposed.

Language: Английский

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