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Abstract.In our work, UV-response with a small visible light absorption TiO2 nanoparticles were supported on lamellar La2NiO4 perovskite to build a type I heterojunction for efficient hydrogen production under visible light. It was found that, with the increase of La2NiO4 contents, the hydrogen production rates gradually increased and amounted to the highest value when the mass fraction of La2NiO4 was 8 wt. %, which is 39.5 times that of the initial La2NiO4 nanosheets without the cocatalyst Pt. When 1 wt. % Pt was loaded, the photocatalytic activity for the composite photocatalyst increased by 369.0 times that of the initial La2NiO4. Our work should be of value for the preparation of visible responsive heterojunction photocatalysts with high activity, fair stability, and low toxicity.
Journal of Photonics for Energy – SPIE
Published: Jul 1, 2021
Keywords: heterojunction; photocatalytic; layered perovskite oxide; semiconductor coupled modified
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