Citation: Hongying Li, Haiming Gong, Zhiliang Jin. In₂O₃-Modified Three-Dimensional Nanoflower MoS_x Form S-scheme Heterojunction for Efficient Hydrogen Production[J]. Acta Physico-Chimica Sinica, ;2022, 38(12): 220103. doi: 10.3866/PKU.WHXB202201037 shu

In₂O₃-Modified Three-Dimensional Nanoflower MoS_x Form S-scheme Heterojunction for Efficient Hydrogen Production

School of Chemistry and Chemical Engineering, Ningxia Key Laboratory of Solar Chemical Conversion Technology, Key Laboratory for Chemical Engineering and Technology, State Ethnic Affairs Commission, North Minzu University, Yinchuan 750021, China

Corresponding author: Zhiliang Jin, zl-jin@nun.edu.cn
Received Date: 23 January 2022
Revised Date: 4 March 2022
Accepted Date: 15 March 2022
Available Online: 22 March 2022
Fund Project: the Natural Science Foundation of the Ningxia Hui Autonomous Region, China 2020AAC02026

Morphology regulation and the improvement of carrier separation efficiency are important strategies for the preparation of photocatalysts with excellent performance. MoS_x with a three-dimensional (3D) nanoflower morphology formed by nanosheet stacking was prepared by a simple hydrothermal method, and MoS_x/In₂O₃ with good hydrogen evolution activity was obtained by coupling with In₂O₃. The preparation of the three-dimensional nanoflower morphology combined with the construction of an S-scheme heterojunction improves the electron accumulation at the active site for hydrogen evolution reaction. The UV diffuse reflection test showed that the issue of poor light absorption of In₂O₃ was improved. The rapid separation and transfer of electrons were effectively confirmed by characterization methods such as fluorescence spectroscopy and electrochemical tests. The most intuitively manifestation of the performance improvement of the composite material is that the optimal hydrogen evolution rate reached 6704.2 μmol∙g⁻¹∙h⁻¹, which is 1.8 times that of pure MoS_x. Therefore, in this study, a new idea for the development of molybdenum-based sulfides for photocatalytic hydrogen production is provided.
- Photocatalysis,
- Heterojunction,
- MoS_x,
- In₂O₃,
- Hydrogen production
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In2O3-Modified Three-Dimensional Nanoflower MoSx Form S-scheme Heterojunction for Efficient Hydrogen Production

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In₂O₃-Modified Three-Dimensional Nanoflower MoS_x Form S-scheme Heterojunction for Efficient Hydrogen Production