DataVXJournal of Ovonic ResearchPaper
journal article·2025-08-01

Scavengers-driven restructuring of Vo-ZnO to Vo-ZnO/ZnS S-scheme heterojunction for boosting the photocatalytic hydrogen production

School of Physics and Electronic Engineering, Jiangsu University, Zhenjiang, Jiangsu, 212013, P. R. China, Z. L. Li, X. R. Zhu, Jiangsu Engineering Research Center on Quantum Perception and Intelligent Detection of Agricultural Information, Jiangsu University, Zhenjiang 212013, China, W. Yan, School of Physics and Electronic Engineering, Jiangsu University, Zhenjiang, Jiangsu, 212013, P. R. China, L. C. Zhang, School of Physics and Electronic Engineering, Jiangsu University, Zhenjiang, Jiangsu, 212013, P. R. China, Y. C. Wei, School of Physics and Electronic Engineering, Jiangsu University, Zhenjiang, Jiangsu, 212013, P. R. China, Y. P. Chen, School of Physics and Electronic Engineering, Jiangsu University, Zhenjiang, Jiangsu, 212013, P. R. China, Y. E. Xie, School of Physics and Electronic Engineering, Jiangsu University, Zhenjiang, Jiangsu, 212013, P. R. China, J. Xu, School of Physics and Electronic Engineering, Jiangsu University, Zhenjiang, Jiangsu, 212013, P. R. China

Journal of Ovonic Research· Volume 21· Issue 4
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Source abstract

Abstract

In this study, Na₂S and Na₂SO₃ were used as hole sacrificial agents to induce the transformation of ZnO into a Vo-ZnO/ZnS composite (ZnO-X-RE) during the photocatalytic hydrogen evolution process, generating oxygen vacancies and forming an S-scheme heterojunction. This configuration enhances light absorption and establishes efficient Sscheme charge transfer pathways, suppressing electron-hole recombination. The hydrogen production capacity of the optimized ZnO-700-RE reaches 12.08 mmol·g⁻¹·h⁻¹, 25-fold higher than pristine ZnO. This work elucidates the dual role of hole scavengers in modulating photocatalyst evolution and proposes a strategic route for designing highperformance S-scheme systems.
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Research context

CompositesCatalysis & surfaces

OpenAlex topics: Advanced Photocatalysis Techniques · TiO2 Photocatalysis and Solar Cells · Metalloenzymes and iron-sulfur proteins

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