Highly crystalline carbon nitrogen polymer with a strong built-in electric fields for ultra-high photocatalytic H2O2 production

Applied Catalysis B Environment and Energy, Journal Year: 2023, Volume and Issue: 342, P. 123340 - 123340

Published: Sept. 26, 2023

Language: Английский

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Design components of porphyrin-based photocatalytic hydrogen evolution systems: A review

Coordination Chemistry Reviews, Journal Year: 2022, Volume and Issue: 467, P. 214599 - 214599

Published: May 26, 2022

It is widely recognised that renewable hydrogen will play a key role in our future energy mix. One approach to use photocatalytic water-splitting devices for sustainable generation. For these function effectively, materials can capture sunlight are essential. In this review porphyrins and their suitability as photosensitisers and/or proton reduction photocatalysts discussed, both within homogeneous, heterogeneous photo-electrochemical environments. particular, the various parameters be varied compared, also difficulty accurate comparisons, there no standard reporting approach. The photochemistry further complemented by systematic of electrochemistry designing porphyrin based systems evolution.

Language: Английский

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Accelerating photogenerated charge kinetics via the g-C3N4 Schottky junction for enhanced visible-light-driven CO2 reduction

Applied Catalysis B Environment and Energy, Journal Year: 2022, Volume and Issue: 318, P. 121863 - 121863

Published: Aug. 17, 2022

Language: Английский

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Construction of II-type and Z-scheme binding structure in P-doped graphitic carbon nitride loaded with ZnO and ZnTCPP boosting photocatalytic hydrogen evolution

Journal of Colloid and Interface Science, Journal Year: 2023, Volume and Issue: 651, P. 669 - 677

Published: Aug. 6, 2023

Language: Английский

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Electron self-sufficient core-shell BiOCl@Fe-BiOCl nanosheets boosting Fe(III)/Fe(II) recycling and synergetic photocatalysis-Fenton for enhanced degradation of phenol

Applied Catalysis B Environment and Energy, Journal Year: 2023, Volume and Issue: 330, P. 122642 - 122642

Published: March 15, 2023

Language: Английский

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All-organic covalent organic frameworks/perylene diimide urea polymer S-scheme photocatalyst for boosted H2 generation

CHINESE JOURNAL OF CATALYSIS (CHINESE VERSION), Journal Year: 2022, Volume and Issue: 43(10), P. 2581 - 2591

Published: Jan. 1, 2022

Language: Английский

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Thermally Induced Orderly Alignment of Porphyrin Photoactive Motifs in Metal–Organic Frameworks for Boosting Photocatalytic CO₂ Reduction

Journal of the American Chemical Society, Journal Year: 2023, Volume and Issue: 145(32), P. 18148 - 18159

Published: Aug. 2, 2023

Efficient transfer of charge carriers through a fast transport pathway is crucial to excellent photocatalytic reduction performance in solar-driven CO2 reduction, but it still challenging effectively modulate the electronic between photoactive motifs by feasible chemical means. In this work, we propose thermally induced strategy precisely electron formed porphyrin metal–organic framework using thorium ion with large ionic radius and high coordination number as coordination-labile metal node. As result, stacking pattern molecules before after crystal transformations has changed dramatically, which leads significant differences separation efficiency photogenerated MOFs. The rate CO IHEP-22(Co) reaches 350.9 μmol·h–1·g–1, 3.60 times that IHEP-21(Co) 1.46 IHEP-23(Co). Photoelectrochemical characterizations theoretical calculations suggest channels inhibit recombination carriers, resulting for reduction. interaction mechanism was clarified in-situ paramagnetic resonance, diffuse reflectance infrared Fourier transform spectroscopy, extended X-ray absorption fine structure calculations. These results provide new method regulate efficient migration photocatalysts will be helpful guide design synthesis superior production solar fuels.

Language: Английский

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Design of lateral and vertical Bi4O5I2/BiOCl heterojunctions with different charge migration pathway for efficient photoredox activity

Applied Catalysis B Environment and Energy, Journal Year: 2023, Volume and Issue: 329, P. 122554 - 122554

Published: March 2, 2023

Language: Английский

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Interfacial Mediation by Sn And S Vacancies of p‐SnS/n‐ZnIn₂S₄ for Enhancing Photocatalytic Hydrogen Evolution with New Scheme of Type‐I Heterojunction

Advanced Functional Materials, Journal Year: 2023, Volume and Issue: 33(50)

Published: Aug. 27, 2023

Abstract The construction of interfacial electric field (IEF) in semiconductor heterojunction is great significance boosting photocatalytic hydrogen evolution through efficient separation photogenerated charge‐carriers. However, the exploitation IEF type‐I has not been proposed for designing photocatalysts. Herein, based on density functional theory prediction, p ‐SnS with different work functions modulated by Sn‐vacancy are compounded n ‐ZnIn 2 S 4 containing S‐vacancy to form heterojunction. optimized SnS/ZnIn photocatalyst without co‐catalysts exhibits an impressive rate 22.75 mmol g −1 h , 6.23 times ZnIn . Systematic investigations reveal that Sn‐S bond acts as a transport channel accelerates interface charge‐carriers transfer under promotion originating from significant Fermi level difference. A large difference surface photovoltage signal and achieved effective IEF. new p‐n scheme induced mediation can separate charge‐carriers, retain highly reductive electrons evolution, overcoming disadvantage reduction potential decline typical scheme. This study will afford theoretical basis achievement high‐efficiency modulation.

Language: Английский

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Structural Regulation of Photocatalyst to Optimize Hydroxyl Radical Production Pathways for Highly Efficient Photocatalytic Oxidation

Advanced Materials, Journal Year: 2023, Volume and Issue: 36(3)

Published: Oct. 22, 2023

Ring-opening of phenol in wastewater is the pivotal step photocatalytic degradation. The highly selective generation catalytical active species (•OH) to facilitate this process presents a significant scientific challenge. Therefore, novel approach for designing photocatalysts with single-atom containment metal-covalent organic frameworks (M-COFs) proposed. selection imine-linked COFs containing abundant N and O-chelate sites provides solid foundation anchoring metal atom. These dispersed atom possess rapid accumulation transfer capabilities photogenerated electrons, while periodic π-conjugated structure 2D-COFs establishes an effective platform. Additionally, Lewis acid properties imine bonds can enhance adsorption capacity toward gases base properties, such as O

Language: Английский

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