Oxygen vacancy-rich Z-scheme g-C3N4/BiOBr heterojunction with enhanced visible-light photocatalytic activity for pollutants degradation

Materials Science and Engineering B, Journal Year: 2025, Volume and Issue: 319, P. 118341 - 118341

Published: May 5, 2025

Language: Английский

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Graphdiyne (C_nH_2n–2) In Situ Anchored with Bimetallic Oxide MnCo₂O₄ Construct S-Scheme Heterojunction for Efficient Photocatalytic Hydrogen Evolution

The Journal of Physical Chemistry C, Journal Year: 2024, Volume and Issue: 128(5), P. 1982 - 1994

Published: Jan. 27, 2024

Constructing heterojunctions through surface-loaded catalysts is an important way to improve the photocatalytic ability. This article employs a simple and effective method of in situ anchoring spherical MnCo2O4 bimetallic oxide onto sheet-like graphdiyne (GDY). GDY possesses large specific surface area, providing ample space for MnCo2O4. By sintering, MnCO2O4 can be closely loaded on surface, which reduces distance between physical barrier electron transfer more conducive hydrogen evolution reaction. After GDY, composite catalyst exhibits excellent light absorption ability, low efficiency electron–hole recombination. The process catalytic superior performance remarkable stability. formation S-scheme heterojunction offers novel pathway transportation, preserves system's maximum redox capacity, facilitates involvement greater number electrons

Language: Английский

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Theoretical Study of the Ternary Compound Monolayer CuP₂Se for Photocatalytic Water Splitting with Efficient Optical Absorption

Chemistry - A European Journal, Journal Year: 2024, Volume and Issue: 30(33)

Published: April 11, 2024

Utilizing photocatalytic method to produce hydrogen by splitting water is an efficient strategy solve the hotspot issues of energy crisis and environmental pollution. Herein, we systematically investigate corresponding properties reported Cu-bearing ternary compound monolayer CuP

Language: Английский

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Adsorption induced bipolar excitation at semiconductor surface

Surfaces and Interfaces, Journal Year: 2024, Volume and Issue: 50, P. 104499 - 104499

Published: May 18, 2024

Adsorption on metal surfaces has been shown to lead chemisorption induced electronic excitation but direct experimental evidence of semiconductor is still missing. Here, we design and use high-quality Silicon (Si) p-n diodes in-situ probe the charge transfer process taking place during vapor liquid phase iodine molecules H-Si (100) surface. We find that can generate electricity feed an external circuit process, demonstrating chemisorption-induced electron hole generation means electrically monitor process. A bipolar electrochemical model where a single surface hosts spontaneous oxidation (electron injection) reduction (hole reactions simultaneously its conduction valence bands without any electrolytes proposed explain observations. Our work provides new insight energy relaxation processes also calls for further studies observed chemovoltaic effect. Overall, results indicate possibility developing electrolyte-free chemical energy-to-electricity converters detectors.

Language: Английский

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NiCo-MOFs in situ anchored on graphdiyne with metal-like properties form a strongly coupled electron transport interface and construct an ohmic contact to achieve efficient charge–hole spatial separation

Nanoscale, Journal Year: 2024, Volume and Issue: 16(41), P. 19322 - 19334

Published: Jan. 1, 2024

Metals exhibit unique characteristics in photocatalysis, and their incorporation into semiconductors can result remarkable features. This study focuses on the preparation of graphdiyne with Cu (CG) by using powder as a catalyst. The addition reduces narrow band gap imparts metal-like properties to material. By leveraging electronegativity CG, spherical NiCo-MOF (NC) is grown

Language: Английский

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Terpyridine Ni(II) Complex Grafted CdS Nanorods for Cooperative Selective Benzyl Alcohol Oxidation and Hydrogen Production

Inorganic Chemistry, Journal Year: 2024, Volume and Issue: 63(43), P. 20820 - 20829

Published: Oct. 9, 2024

Efficient utilization of photogenerated charge carriers to realize photocatalytic solar fuel production and oxidative chemical synthesis is a challenging task. Herein, conventional amidation reaction route adopted successfully construct novel composite photocatalyst composed Ni(II)-terpyridine complex with carboxyl groups grafted on CdS nanorods (labeled as CdS@Ni(terpyC)

Language: Английский

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Engineering novel MnxCd1-xS self-assembled p-n junction modified with NiS for enhanced photocatalytic hydrogen evolution

Materials Research Bulletin, Journal Year: 2024, Volume and Issue: unknown, P. 113230 - 113230

Published: Nov. 1, 2024

Language: Английский

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