Unveil the Potential of MOF-based Single-Atom Photocatalyst for Production of Clean Fuel and Valuable Chemical

Chemical Communications, Journal Year: 2024, Volume and Issue: unknown

Published: Jan. 1, 2024

Harnessing solar energy through photocatalysis has excellent potential for powering sustainable chemical production, supporting the United Nations' environmental goals. Single-atoms (SAs) dispersed on catalyst surfaces are gaining attention their highly active and durable nature. Metal-organic frameworks (MOFs) can provide enough reactive sites to sustain selectivity durability over time because of tunable channels functional groups. Owing organized structures, MOFs ideal platforms securing individual atoms promoting solar-driven reactions. Few reviews have, however, reflected possibility combining SAs produce potent photocatalysts that may clean fuels valuable chemicals. This review provides a general overview methods generate photocatalysts. The challenges associated with these MOF-based single-atom systems also critically examined. Their future development is discussed as continued refinement helps more fully leverage advantages boosting photocatalytic performances - turning sunlight into chemicals in manner supports development. Insights gained here could illuminate pathways toward realizing profound empower production driven by renewable energy.

Language: Английский

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Confined growth of Cu2O quantum dots on oxygen vacancies mediated Bi24O31Br10 nanosheets for efficient tetracycline hydrochloride photodegradation driving by S-scheme mechanism

Journal of Alloys and Compounds, Journal Year: 2024, Volume and Issue: 1010, P. 177619 - 177619

Published: Nov. 15, 2024

Language: Английский

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Ag as an Electron Mediator in Porous Cu₂O Nanostructures for Photocatalytic CO₂ Reduction to CO

ACS Applied Nano Materials, Journal Year: 2023, Volume and Issue: 6(12), P. 10539 - 10550

Published: June 9, 2023

Cuprous oxide (Cu2O) has attracted tremendous attention in the field of photocatalytic CO2 conversion due to excellent optical character and carrier separation efficiency. However, is a multiple proton-coupled electron transfer process that usually produces various products, it still major challenge for improving yield selectivity single product. Herein, low-temperature deposition method combined with dynamic hydrogen bubble template was used synthesize Ag/Cu2O photocatalyst tackle this problem. The porous nanostructures exhibits performance reduction. CO Ag/Cu2O-0.04 22.52 nmol cm–2 h–1 (43.04 μmol g–1 h–1), which about 1.5 times original sample. For CO, increased by 22% compared Cu2O, reaching 82.9%. Combined density functional theory Fourier transform infrared spectroscopy, found Ag loading changes adsorption configuration on catalyst from bidentate carbonate monodentate carbonate, CO. In addition, Schottky junction accelerates surface reaction kinetics acceleration transportation photogenerated carriers. Therefore, work provides an idea develop high-efficient

Language: Английский

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Guest‐Induced Multilevel Charge Transport Strategy for Developing Metal‐Organic Frameworks to Boost Photocatalytic CO₂ Reduction

Small, Journal Year: 2023, Volume and Issue: 19(34)

Published: April 24, 2023

Encapsulating photogenerated charge-hopping nodes and space transport bridges within metal-organic frameworks (MOFs) is a promising method of boosting the photocatalytic performance. Herein, this work embeds electron transfer media (9,10-bis(4-pyridyl)anthracene (BPAN)) in MOF cavities to build multi-level paths. The are accurately regulated investigate significance paths process CO2 photoreduction by evaluating difference number guest media. prepared MOFs, {[Co(BPAN)(1,4-dicarboxybenzene)(H2 O)2 ]·BPAN·2H2 O} {[Co(BPAN)2 (4,4'-biphenyldicarboxylic acid)2 (H2 ]·2BPAN·2H2 (denoted as BPAN-Co-1 BPAN-Co-2), exhibit efficient visible-light-driven conversion properties. CO efficacy BPAN-Co-2 (5598 µmol g-1 h-1 ) superior that most reported MOF-based catalysts. In addition, enhanced ability supported density functional theory (DFT). This illustrates feasibility realizing charge separation characteristics catalysts at molecular level, provides new insight for designing high-performance MOFs artificial photosynthesis.

Language: Английский

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Photoelectrochemical CO2 reduction with copper-based photocathodes

Journal of CO2 Utilization, Journal Year: 2023, Volume and Issue: 79, P. 102639 - 102639

Published: Dec. 11, 2023

The excessive consumption of fossil fuels has led to a rapid surge in atmospheric CO2 concentration, triggering severe energy crises and environmental concerns. In this context, photoelectrochemical (PEC) technology for reduction is perceived as highly appealing resolution, due its integration the advantages offered by both photocatalysis electrocatalysis. Undoubtedly, photocathode plays pivotal role within PEC system. Among various catalysts, copper (Cu)-based photocathodes have garnered significant attention owing their low toxicity, affordability, advantageous band gap distinctive active sites that enable conversion into diversity products including carbon monoxide (CO), formic acid (HCOOH), methane (CH4), ethylene (C2H4), ethanol (C2H5OH) so on. This review primarily delves current developments Cu-based reduction, encompassing aspects like material fabrication processes modification techniques. Subsequently, an analysis presented regarding reaction mechanisms underlying different products. Finally, anticipatory perspective provided future research field reduction. enables researchers promptly capture latest advancements offers valuable insights on design synthesis photocathode, provides guideline achieve enhanced improvements conversion.

Language: Английский

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