All-organic ultrathin ionic-pyridine-COF/boron-doped-g-C3N4 heterojunction for CO2 photoconversion integrated with alcohol oxidation

Applied Catalysis B Environment and Energy, Journal Year: 2025, Volume and Issue: unknown, P. 125289 - 125289

Published: March 1, 2025

Language: Английский

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Regulating Asymmetric Charge Distribution in Cu₂MoS₄ Nanosheets for Enhanced Photocatalytic CO₂ Reduction

Small, Journal Year: 2025, Volume and Issue: unknown

Published: March 4, 2025

Abstract Photocatalytic reduction of CO 2 to high‐value‐added chemicals represents a promising strategy for effective utilization, and rationally regulating the electronic structure catalyst is key enhancing photocatalytic performance. Herein, it demonstrated that in situ doping atomic indium into lattice Cu MoS 4 results remarkable enhancements A record gas product yield 104.1 µmol·g −1 ·h achieved under visible light irradiation (>420 nm), accompanied by generation rate 35.3 ethylene. Detailed experimental analyses density functional theory (DFT) calculations reveal low electronegativity atoms induces asymmetric charge redistribution near sites. This effect facilitates adsorption dissociation molecules at charge‐enriched Mo sites, as well subsequent intermediates ( * COCOH) toward ethylene formation. work advances understanding potential mechanism between active site performance, providing valuable insights fabricating advanced materials conversion solar fuels.

Language: Английский

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In situ Doping Coupling With Vacancy Regulation Induced Strong Metal‐Support Interaction in Ni/CaTiO₃ to Boost Supercharged Photothermal CO₂ Methanation

Advanced Functional Materials, Journal Year: 2025, Volume and Issue: unknown

Published: March 7, 2025

Abstract The “Solar Sabatier” reaction has emerged as a promising sustainable method for the CO 2 hydrogenation. development of advanced metal‐support catalysts based on Strong Metal‐Support Interaction (SMSI) offers significant advantages in activation and regulation selectivity. Herein, novel composite Ni/CaTiO 3 catalyst consisting Ni Ni‐doped CaTiO is synthesized utilized methanation. A noteworthy finding that incorporation into matrix instrumental formation oxygen vacancies establishment SMSI between . enhanced resulting from surface‐doped atoms not only facilitated effective interface contact metallic surface but also significantly improved migration efficiency hydrogen reduced barrier methanation optimized rate‐limiting step, all which are advantageous Consequently, exhibited extraordinary performance, achieving conversion rate 87.77%, CH 4 generation 3.12 mol g −1 h , ≈100% selectivity under ambient pressure conditions. This investigation lays groundwork design highly active understanding mechanisms underlying SMSI.

Language: Английский

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CuCo₂S₄/g-C₃N_4–x S-Scheme Heterojunction for Photothermal-Assisted Photocatalytic CO₂ Reduction

Inorganic Chemistry, Journal Year: 2025, Volume and Issue: unknown

Published: April 20, 2025

Photocatalytic conversion of CO2 into chemical fuels has emerged as a research hotspot, aiming to mitigate the rapid depletion fossil and alleviate global warming. However, inherent low carrier separation efficiency limited solar light utilization photocatalysts lead unsatisfactory efficiency. In this study, an appealing CuCo2S4/g-C3N4-x S-scheme heterostructure is successfully fabricated by simple polyol reflux method. Notably, nitrogen vacancies enhance Fermi level difference between CuCo2S4 g-C3N4-x, resulting in stronger interfacial built-in electric field. The full-spectrum strong optical absorption capability endows synthesized catalysts with superior light-harvesting property. photothermal effect-induced temperature increase accelerates cyclic process adsorption CO desorption on catalyst surface. Most importantly, charge transfer pathway ensures efficient photogenerated carriers. Thanks these synergistic benefits, exhibits exceptional photothermal-assisted photocatalytic reduction performance. Under simulated sunlight, average production rate reaches 24.64 μmol g-1 h-1, which 12.1 27.1 times higher than that g-C3N4 CuCo2S4, respectively. This study offers novel strategy for designing outstanding

Language: Английский

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Recent Advancements in COFs‐Based Heterostructures for CO₂ Photoreduction

Advanced Functional Materials, Journal Year: 2025, Volume and Issue: unknown

Published: May 5, 2025

Abstract Covalent–organic frameworks (COFs) based heterojunctions photocatalytic have showed great potential for CO 2 upcycling. Currently, significant progress has been made in developing such photocatalysts, yet a comprehensive understanding of this field remains lacking. This review systematically explores the inherent relationship between COF‐based heterojunction innovations and CO₂ reduction, aiming to establish structure–performance–mechanism correlation that guides design high‐efficiency catalysts. First, fundamentals, mechanisms, related principles conversion, as well advantages COFs application, are thoroughly introduced. Then, state‐of‐the‐art applied reduction discussed from following critical aspects: interfacial engineering, spatial charge transfer regulation, active component hybridization, half‐reaction kinetic optimization, sites engineering. Subsequently, systematic overview characterization techniques research methodologies probing catalyst structures in‐depth reaction mechanisms is outlined. Finally, challenges further development direction proposed. It expected can provide powerful guidance reference toward exploiting high‐performance photocatalysts conversion.

Language: Английский

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The Construction and Photocatalytic Application of Covalent Triazine Framework (CTF)-Based Composites: A Brief Review

Catalysts, Journal Year: 2025, Volume and Issue: 15(6), P. 562 - 562

Published: June 5, 2025

Covalent triazine frameworks (CTFs) are a class of porous organic semiconductors containing large number units, which gives them many properties suitable for photocatalysis, such as high porosity, good tunability, and excellent chemical stability. However, it is difficult to achieve activity, stability, selectivity at the same time using single CTF in specific catalytic reaction. Therefore, necessary find ways combine CTFs with other materials improve their photocatalysis activity. From this perspective, some construction methods latest progress CTF-based composites presented, applications field introduced. Finally, future proposed, provides insights into research exploration composites.

Language: Английский

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Continuous Flow Photothermal Catalytic CO₂ Reduction: Materials, Mechanisms, and System Design

ACS Catalysis, Journal Year: 2025, Volume and Issue: unknown, P. 10480 - 10520

Published: June 5, 2025

Language: Английский

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