Co Nanoparticles on MnO: Electron Transfer through Ohmic and S-Scheme Heterojunction for Photocatalytic Hydrogen Evolution

ACS Applied Materials & Interfaces, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 4, 2025

The photocatalytic hydrolysis method represents a significant potential solution to the dual challenges of energy security and environmental sustainability. selection suitable materials systems is paramount importance for successful implementation hydrogen production technology. In this study, in situ reduction Co nanoparticles on MnO was successfully performed by calcining MnCo-PBA. Furthermore, graphdiyne (GDY) introduced physical agitation. introduction GDY reduced Co/MnO agglomeration made Co/MnO/GDY catalyst exhibit high activity production, with an optimum rate 2117.33 μmol·g-1·h-1, which 4.88 2.67 times higher than that Co/MnO, respectively. results photoelectrochemical test indicate composite has better photogenerated carrier separation efficiency. X-ray photoelectron spectroscopy, density functional theory calculations, electron paramagnetic resonance were used investigate transfer mechanism during process, confirming presence S-scheme heterojunction ohmic junction, enhance carriers. GDY-based constructed study significantly bimetallic catalysts.

Language: Английский

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Constructing ultra-small t-BiOCl/e-LDH nanosheets for the synchronous removal of RR2 and Cr(VI): Insights into photocatalysis mechanism differences between RR2 and RR2/Cr(VI) systems

Separation and Purification Technology, Journal Year: 2025, Volume and Issue: unknown, P. 131521 - 131521

Published: Jan. 1, 2025

Language: Английский

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Enhanced catalytic activity and hydrogen production of Ho-TiO2 nanotubes prepared under various pH conditions

Applied Surface Science, Journal Year: 2025, Volume and Issue: unknown, P. 162484 - 162484

Published: Jan. 1, 2025

Language: Английский

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Thermal Transport Properties of Two-Dimensional Janus MoXSiN₂ (X = S, Se, and Te)

Langmuir, Journal Year: 2024, Volume and Issue: 40(23), P. 12301 - 12312

Published: May 29, 2024

The design of Janus materials offers an effective means regulating both their physical and chemical properties, leading to application in various fields. However, the underlying mechanism governing modulation thermal transport characteristics through construction remains unclear. In this work, we introduce VI-group elements into MoSi2N4 structure, yielding two-dimensional MoXSiN2 (X = S, Se, Te) systematically investigate properties based on first-principles calculation methods. Our findings reveal that lattice conductivities (κl) MoSSiN2, MoSeSiN2, MoTeSiN2 are 47.2, 24.3, 40.6 W/mK at 300 K, respectively, significantly lower than (224 W/mK). Such low κl values mainly come from introduction X atoms, which enhances phonon scattering reduces vibration frequencies. addition, exhibits a higher compared contrary trend observed most containing elements, where decreases gradually S Te. This anomalous behavior can be attributed competitive result between its vibrational frequency weaker anharmonicity MoTeSiN2. work elucidates inherent materials, thereby enhancing potential engineering management.

Language: Английский

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TiN/TiO2 embedded in ReS2 nanoflowers with wide light absorption and multi-interfacial charge transfer for efficient photocatalytic hydrogen generation

Applied Surface Science, Journal Year: 2024, Volume and Issue: 682, P. 161708 - 161708

Published: Nov. 5, 2024

Language: Английский

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Self-assembled flower-like spherical Bi2WO6/BiOBr S-scheme heterojunction: Improved charge transfer and excellent photocatalytic activity

Journal of Alloys and Compounds, Journal Year: 2024, Volume and Issue: 1010, P. 177573 - 177573

Published: Nov. 14, 2024

Language: Английский

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Enhanced Catalytic Activity of Tio2 Nanotubes Decorated with Holmium: Investigation on Hydrogen Production and Photoelectrochemical Properties Prepared at Various Ph Conditions

Published: Jan. 1, 2024

Language: Английский

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