Novel preparation strategy of graphdiyne (CnH2n-2): One-pot conjugation and S-Scheme heterojunctions formed with MoP characterized with in situ XPS for efficiently photocatalytic hydrogen evolution

Applied Catalysis B Environment and Energy, Год журнала: 2023, Номер 327, С. 122461 - 122461

Опубликована: Фев. 13, 2023

Язык: Английский

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S-Scheme MnCo₂S₄/g-C₃N₄ Heterojunction Photocatalyst for H₂ Production

Acta Physico-Chimica Sinica, Год журнала: 2023, Номер 0(0), С. 2212009 - 2212009

Опубликована: Янв. 1, 2023

Abstract:

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Adjusting inter-semiconductor barrier height via crystal plane engineering: Crystalline face exposed single crystal cadmium sulfide augmentative S-scheme heterojunctions for efficiently photocatalytic hydrogen production

Applied Catalysis B Environment and Energy, Год журнала: 2023, Номер 342, С. 123373 - 123373

Опубликована: Окт. 9, 2023

Язык: Английский

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Transition metal chalcogenides and phosphides for photocatalytic H2 generation via water splitting: a critical review

International Journal of Hydrogen Energy, Год журнала: 2024, Номер 62, С. 1113 - 1138

Опубликована: Март 18, 2024

Язык: Английский

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Enhanced photocatalytic performance of MXene-Modified cation-exchanged CoFe-LDH/CoFeCrO4 heterostructure for Antibiotic degradation and hydrogen production through synergistic charge dynamics

Composites Part B Engineering, Год журнала: 2024, Номер 278, С. 111416 - 111416

Опубликована: Апрель 1, 2024

Язык: Английский

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Sunlight-Driven Hydrogen Generation: Acceleration of Synergism between Cu–Ag Cocatalysts on a CdS System

ACS Applied Energy Materials, Год журнала: 2024, Номер 7(5), С. 1914 - 1926

Опубликована: Фев. 23, 2024

The high cost and limited sources of fossil fuels led researchers to discover alternative energy. aim this work is explore stable efficient catalysts for hydrogen evolution under sunlight. From perspective, various including CdS, Ag@CdS, Cu@CdS, Cu/Ag@CdS have been designed synthesized via the hydrothermal method. To enhance surface stability activity copper silver metals were selected as cocatalysts. Cocatalyst contents in situ deposited over surfaces CdS using a chemical reduction approach. optical structural properties investigated UV–vis/diffuse reflectance spectroscopy (DRS), Raman, photoluminescence (PL), X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission (TEM), Fourier-transform infrared (FTIR), atomic force (AFM) techniques. Their compositions characteristics confirmed by energy-dispersive (EDX) photoelectron (XPS) studies. Thermal was assured thermogravimetric analysis (TGA), whereas magnetic determined paramagnetic (EPR). Photoreactions done quartz photoreactor (150 mL/Velp Scienific) generation activities monitored gas chromatographs, i.e., GC-TCD (Shimadzu-2010/Japan). results depict that with 2% Cu 1% Ag on exhibit highest (i.e., 18.93 mmol g–1 h–1 45.04% quantum efficiencies). higher attributed synergism generated between cocatalysts during photoreaction. It has predicted populations plasmon resonance (SPR) Cu/Ag Schottky junctions formed restrict charge recombination back reactions). Additionally, factors like pH, temperature, photocatalyst dosage, intensity light evaluated discussed optimize ideal conditions. study hold promise an eventual transition replace costly conventional used sustainable generation.

Язык: Английский

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In situ Mo doping in NiS₂: enhancing electron density and stimulating electronic conductivity of Cu₃P–GDY for efficient photocatalytic hydrogen evolution

Journal of Materials Chemistry A, Год журнала: 2025, Номер unknown

Опубликована: Янв. 1, 2025

The electronic conductivity of a catalyst can be enhanced by strategically doping with specific elements.

Язык: Английский

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S-Scheme and Schottky Junction Synchronous Regulation Boost Hierarchical CdS@Nb₂O₅/Nb₂CT_x (MXene) Heterojunction for Photocatalytic H₂ Production

ACS Applied Materials & Interfaces, Год журнала: 2023, Номер 15(16), С. 20027 - 20039

Опубликована: Апрель 12, 2023

Photocatalytic water cracking hydrogen (H2) production is a promising clean energy technology. Therefore, ternary CdS@Nb2O5/Nb2CTx (MXene) heterojunction with hierarchical structure was designed to promote photocatalytic H2 evolution. When Na2S/Na2SO3 and lactic acid were used as sacrificial agents, the evolution reaction (HER) rates of optimized photocatalyst 1501.7 2715.8 μmol g-1 h-1, 12.4% 26.1% apparent quantum efficiencies (AQE) at 420 nm, respectively. Its HER performance 10.9-fold higher than that pure CdS remained 87% activity after five rounds cycle tests. Such an enhancement stems from excellent light absorption properties, tight interfacial contact, fast charge transfer channel, sufficient active sites. Mechanism analysis demonstrates S-scheme Schottky junction synchronous regulation boost for production. This work creates possibilities manufacturing Nb-based MXene photocatalysts converting solar other applications.

Язык: Английский

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Recent progress of cocatalysts loaded on carbon nitride for selective photoreduction of CO₂to CH₄

Nanoscale, Год журнала: 2023, Номер 15(19), С. 8548 - 8577

Опубликована: Янв. 1, 2023

A photocatalytic system driven by solar light is one of the promising strategies for converting CO2 into valuable energy. The reduction to CH4 widely studied since has a high energy density as main component nonrenewable natural gas. Therefore, it necessary develop semiconductor materials with activity and selectivity. Graphitic carbon nitride (g-C3N4/CN) attracted widespread attention due its excellent redox ability visible response. hybrid constructed loading cocatalysts on g-C3N4 can significantly improve yield target products, serve general platform explore mechanism reaction. Herein, we briefly introduce theory selective photoreduction basic properties cocatalysts. Then, several typical configurations modification cocatalyst/CN systems promoting production are presented in detail. In particular, systematically summarize application composite photocatalysts methane, according classification (monometal, bimetal, metal-based compound, nanocarbon materials). Finally, challenges perspectives developing cocatalyst/g-C3N4 selectivity guide rational design catalysts performance future.

Язык: Английский

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ZnCo2S4/Bi2WO6 S-scheme heterojunction for efficient photocatalytic hydrogen evolution: Process and mechanism

International Journal of Hydrogen Energy, Год журнала: 2024, Номер 60, С. 441 - 450

Опубликована: Фев. 21, 2024

Язык: Английский

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