Reinforced Hole Trapping in S‐Scheme Photoharvesters for Markedly Enhanced Photocatalytic Hydrogen Evolution and Nitrogen Fixation

Advanced Functional Materials, Journal Year: 2025, Volume and Issue: unknown

Published: March 7, 2025

Abstract The S‐scheme heterojunction exerts a profoundly positive influence on enhancing carrier separation efficiency and redox capability. However, there are few reports accelerating the reaction rate of photogenerated charge carriers, particularly consumption holes in heterojunction. Herein, an situ construction strategy is employed to construct ultra‐small nonprecious metal NiO (≈2 nm) By incorporating into heterojunctions, photocatalytic hydrogen production performance significantly improved by 380 times, nitrogen fixation enhanced 20 times. Density function theoretical (DFT) calculations, X‐ray photoelectron spectroscopy (in XPS), Diffuse Reflectance Infrared Fourier Transform Spectroscopy DRIFTS) characterization results indicate that incorporation heterojunctions can not only enhance photo‐generated carriers ability but also further promote sacrificial agents, thereby achieving secondary enhancement efficiency. Therefore, (H 2 ) (N markedly improved. successful execution this work provides novel approach material structure design, offering valuable insights for development improvement high‐performance materials.

Language: Английский

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Dual-driven charge transport enabled by S-scheme heterojunction and solid solution in CdS@N-NiCoO photocatalysts for enhanced hydrogen evolution

Separation and Purification Technology, Journal Year: 2025, Volume and Issue: unknown, P. 131819 - 131819

Published: Jan. 1, 2025

Language: Английский

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Construction of Ni–P/TiO2 Schottky heterojunction via photo-deposition to enhance photocatalytic hydrogen evolution activity

Applied Physics Letters, Journal Year: 2025, Volume and Issue: 126(5)

Published: Feb. 3, 2025

Photocatalytic hydrogen evolution (PHE) is sustainable and environmentally friendly. Titanium dioxide (TiO2) commonly chosen as a photocatalyst of PHE due to its non-toxicity, robust stability, superior photocatalytic activity. However, the efficacy TiO2 restricted by rapid electron–hole pair recombination, limited electron mobility, sluggish surface reactions. To address these issues, we have synthesized Ni–P alloy onto (Ni–P/TiO2) using safe efficient photo-deposition method, thereby constructing Schottky heterojunction photocatalyst. The construction significantly reduces recombination rates photoinduced pairs enhances charge transfer within Additionally, incorporation increases density oxygen vacancies, providing abundant active sites for reduction reaction. metallic properties improve overall light absorption capacity. As result, Ni–P/TiO2 exhibits exceptional production capability. When mass ratio 12 wt. %, rate reaches maximum value at 1654.2 μmol g−1 h−1. Furthermore, functional theory calculations substantiate that formation an internal electric field between facilitates migration carrier separation. This investigation provides promising strategy TiO2-based heterojunctions performance.

Language: Английский

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Ni-doped cobalt selenide/sypress leaf CdS ohmic junction: An innovative strategy for efficient visible light hydrogen evolution

Separation and Purification Technology, Journal Year: 2025, Volume and Issue: unknown, P. 132953 - 132953

Published: April 1, 2025

Language: Английский

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Dual-Driven Charge Transport Enabled by S-Scheme Heterojunction and Solid Solution in Cds@N-Nicoo Photocatalysts for Enhanced Hydrogen Evolution

Published: Jan. 1, 2024

Language: Английский

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