Application of graphdiyne for promote efficient photocatalytic hydrogen evolution

Results in Surfaces and Interfaces, Journal Year: 2024, Volume and Issue: 14, P. 100188 - 100188

Published: Jan. 23, 2024

The photocatalytic hydrogen evolution technology converts solar energy into clean and environmentally friendly energy, which is considered an effective means to solve environmental pollution crisis. unique sp sp2 hybrid carbon network structure of graphdiyne endows it with excellent carrier mobility, high porosity, making a promising material for conversion. This article provides detailed description the structural properties adjustable bandgap graphdiyne. In addition, review was provided on modification strategies based catalysts evolution, including titanium photocatalysts, metal oxide double hydroxide catalysts, organic framework photocatalysts other typical semiconductors. Finally, challenges opportunities developing semiconductors water splitting were proposed. Timely expected contribute rapid development in field evolution.

Language: Английский

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Rational construction of visible-light-driven perylene diimides/Fe2O3@C derived from MIL-88A (Fe) heterojunction with S-scheme electron transfer pathway to activate peroxymonosulfate for degradation of antibiotics

Journal of Colloid and Interface Science, Journal Year: 2024, Volume and Issue: 659, P. 520 - 532

Published: Jan. 3, 2024

Language: Английский

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Dual Charge Transfer Mechanisms in Intimately Bonded S‐scheme Heterojunction Photocatalyst with Expeditious Activity toward Environmental Remediation

Advanced Sustainable Systems, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 26, 2025

Abstract Fabrication of a photocatalyst with the desired characteristics high charge isolation and expeditious photocatalytic performance is crucial in photocatalysis. Constructing an interfacial chemically bonded S‐scheme heterojunction effective path to realization transfer performance. Herein, Mg‐Bi 2 O 3 /dark gray g‐C N 4 (MBOdCN) Bi‐N bond bridges successfully constructed using situ calcination strategy for oxytetracycline (OTC) degradation. The MBOdCN (1:5) displays outstanding efficiency rate constant 99.56% 0.0235 min −1 , respectively. synergy n‐π* transition, Mg defects, Bi–N enhances heterojunction. X‐ray photoelectron spectroscopy (XPS) analysis, work function measurements, density functional theory (DFT) reveal formation In this system, trapping experiments electron‐spin resonance (ESR) confirm predominance • − > h + OH during OTC degradation pathways byproducts are investigated LC‐MS toxicity study undertaken on materials. This provides holistic understanding novel by introducing chemical defects as dual channels.

Language: Английский

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Photothermal-assisted S-scheme PDIs/C, N, S-CeO2 derived from MOF-808 (Ce) heterojunction for photocatalytic removal of antibiotics

Journal of Alloys and Compounds, Journal Year: 2024, Volume and Issue: 979, P. 173568 - 173568

Published: Jan. 18, 2024

In this research, an organic supermolecule self-assembly perylene diimides (PDIs) semiconductor was wrapped around the surface of three-dimensional metal oxides frame (C, N, S-CeO2) by oil bath heating method. The photocatalytic ability determined degradation pollutants under visible light. photodegradation rate tetracycline (TC) nearly 80.1% within 30 min, and apparent reaction constant (k) 15.83 times higher than that C, S-CeO2. Free radical capture experiments electron spin resonance analysis showed •O2-, •OH 1O2 were main active species. structure PDIs/C, S-CeO2 maintained stable after four cycles, meanwhile, anti-ion interference experiment illustrated efficiency not affected neutral ionic intensity. Further, formation pathways intermediates during process toxicity prediction proposed. addition, 10% could also efficiently degrade other (chlorotetracycline (CTC), ciprofloxacin (CIP), rhodamine B (RhB), methylene blue (MB)). excellent activity attributed to matched energy band structure, establishment multi-dimensional channels, more significant light assimilation performance enhanced photothermal ability. This work provides a new perspective on construction n-n S-scheme heterojunction photocatalysts between self-assembled supramolecular materials MOF-derived oxides.

Language: Английский

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Tailoring Advanced CdS Anisotropy‐Driven Charge Spatial Vectorial Separation and Migration via In Situ Dual Co‐Catalyst Synergistic Layout

Small, Journal Year: 2024, Volume and Issue: 20(31)

Published: March 6, 2024

Abstract Tailoring advanced anisotropy‐driven efficient separation and migration of photogenerated carriers is a pivotal stride toward enhancing photocatalytic activity. Here, CdS‐MoS 2 binary photocatalysts are tailored into dumbbell shape by leveraging the rod‐shaped morphology CdS employing an in situ tip‐induction strategy. To further enhance activity, photo‐deposition strategy incorporated to cultivate MnO x particles on dumbbell‐shaped . The deposition effectively isolated oxidatively active sites surface, emphasizing reductively crystalline face CdS, specifically (002) face. Benefiting from its robust activity as reduction site, MoS adeptly captures electrons, facilitating H + produce hydrogen. anisotropically driven markedly mitigates Coulomb force or binding thus promoting smoother site for hydrogen evolution. evolution rate 35MnO ‐CdS‐MoS ‐3 surpasses that nearly order magnitude, achieving quantum efficiency 22.30% at 450 nm. Under simulated solar irradiation, it attains 42.86 mmol g −1 h This work imparts valuable insights design dual co‐catalysts, spatial vectorial charge migration, analysis pathways carriers.

Language: Английский

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Heterostructured Photocatalysts for Water Splitting and the Interfacial Charge Transfer

ACS Materials Letters, Journal Year: 2024, Volume and Issue: unknown, P. 3572 - 3601

Published: July 15, 2024

Language: Английский

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Fabrication of CoTiO3/MgIn2S4 S–scheme heterojunctions with efficient charge separation to enhance the photocatalytic activities of hydrogen generation and formaldehyde removal

Separation and Purification Technology, Journal Year: 2024, Volume and Issue: 356, P. 130010 - 130010

Published: Oct. 6, 2024

Language: Английский

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Epitaxially induced carrier space vector separation over Zn0.1Cd0.9S/Co9S8 Schottky junctions

Separation and Purification Technology, Journal Year: 2025, Volume and Issue: unknown, P. 132514 - 132514

Published: March 1, 2025

Language: Английский

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A review of carbon material-based Z-scheme and S-scheme heterojunctions for photocatalytic clean energy generation

New Carbon Materials, Journal Year: 2024, Volume and Issue: 39(3), P. 458 - 482

Published: June 1, 2024

Language: Английский

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Acceleration of the charge transfer rate for efficient photocatalytic hydrogen production via adjusting modulator and introducing electronic bridge dual strategies

Fuel, Journal Year: 2024, Volume and Issue: 366, P. 131252 - 131252

Published: March 8, 2024

Language: Английский

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