N-doped C layer boost Z-scheme interfacial charge transfer in TiO2/ZnIn2S4 heterojunctions for enhance photocatalytic hydrogen evolution

Shengjun Liu, Dianjun Chi, Rong Chen, Yan Ma, Huixue Fang, Kui Zhang and Bo Liu

Renewable Energy, 2023, vol. 219, issue P2

Abstract: Inspired by natural photosynthesis, the design of novel Z-scheme photocatalytic systems holds great promise for improving photocatalytic hydrogen production performance. Here, we constructed a Z-scheme heterojunction to effectively improve the charge separation of TiO2/ZnIn2S4, with the N-doped C layer acting as an electron bridge. The T@NC-A/ZIS-72 heterojunctions demonstrated hydrogen production activity approximately 12.1 and 97.9 times higher than those of ZnIn2S4 and TiO2@NC-A, respectively. The excellent electron migration ability of the carbon layer accelerated the photocatalytic hydrogen production performance. Our design introduces a component to provide a dedicated charge transport pathway, overcoming the inherent properties of the material and providing a new perspective for enhancing photocatalytic performance.

Keywords: Z-scheme; Heterojunction; N-doped C; Photocatalysis (search for similar items in EconPapers)
Date: 2023
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Persistent link: https://EconPapers.repec.org/RePEc:eee:renene:v:219:y:2023:i:p2:s096014812301409x

DOI: 10.1016/j.renene.2023.119494

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