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Bi2Se3 nanosheets hybridized with reduced graphene oxide for enhanced photoelectrochemical activity

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Abstract

In this report, two-dimensional (2D) bismuth selenide (Bi2Se3) nanosheets (NSs) and reduced graphene oxide (rGO) (Bi2Se3/rGO) composites have been prepared via a hydrothermal method. The microstructures and morphology properties of Bi2Se3/rGO composites were analyzed by scanning electron microscopy (SEM) and Raman spectra, indicating a well prepared and high crystalline material. Photoelectrochemical (PEC) tests demonstrate that Bi2Se3/rGO heterojunction exhibits enhanced photocatalytic performance of the pure Bi2Se3, which is about five times higher than Bi2Se3 NSs, which is because rGO acts as a conduction pathway, resulting in efficient separation of photogeneration of electron–hole pairs on the Bi2Se3/rGO composites. The as-prepared composite provides a novel insight in the field of photocatalysis.

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Acknowledgements

This work was supported by National Natural Science Foundation of China (No. 11504312, No. 2019JJ50612, No. 2019JJ50602), Scientific Research Fund of Hunan Provincial Education Department (No. 18A059), Hunan Key Laboratory of Two-Dimensional Materials (No. 2018TP1010).

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Authors and Affiliations

  1. Hunan Key Laboratory of Micro-Nano Energy Materials and Devices, and Laboratory for Quantum Engineering and Micro-Nano Energy Technology, School of Physics and Optoelectronic, Xiangtan University, Hunan, 411105, People’s Republic of China

    Gengcheng Liao, Yang Zhou, Zongyu Huang, Qian Ma, Siwei Luo, Yundan Liu & Xiang Qi

  2. Hunan Key Laboratory of Two Dimensional Materials, Hunan University, Changsha, 410082, People’s Republic of China

    Zongyu Huang

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  1. Gengcheng Liao
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  2. Yang Zhou
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  3. Zongyu Huang
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  5. Siwei Luo
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  6. Yundan Liu
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Correspondence to Zongyu Huang or Yundan Liu.

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Liao, G., Zhou, Y., Huang, Z. et al. Bi2Se3 nanosheets hybridized with reduced graphene oxide for enhanced photoelectrochemical activity. Appl. Phys. A 127, 705 (2021). https://doi.org/10.1007/s00339-021-04867-1

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