August 15, 2025Open Access

Construction of Sheet-on-Hollow Cube Cu2-xS/ZnIn2S4 p-n Heterojunction for Enhanced Visible-Light-Driven Photocatalytic Hydrogen Production

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The optimized Cu2-xS/ZnIn2S4 composite achieves hydrogen production of 5.7 mmol h⁻¹ g⁻¹, highlighting its superior efficiency.
At 420 nm monochromatic light, the heterojunction displays an apparent quantum efficiency of 11.4%, emphasizing its photonic efficiency.
In-situ growth of ZnIn2S4 nanosheets enhances charge separation dynamics and reduces electron-hole recombination.
Dual enhancement mechanisms promote efficient carrier migration and improve redox reaction kinetics, showcasing significant advancements in photocatalytic systems.

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P-n junction photocatalyst improves hydrogen production in visible light, indicating strong charge carrier dynamics.

Liu et al. (2025) studied this question.

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