Investigation on photocatalysis and room temperature gas sensing of MoS<sub>2</sub>-ZnO nanocomposite synthesized by hydrothermal method

WANG Ziqiang; YUAN Huan; SUN Yifei; LI Jing; MA Chao; LI Han; PAN Zemei; ZHANG Qiuping; YU Fei; SONG Man; XU Ming

doi:10.13801/j.cnki.fhclxb.20210820.002

Volume 39 Issue 5

Mar. 2022

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WANG Ziqiang, YUAN Huan, SUN Yifei, et al. Investigation on photocatalysis and room temperature gas sensing of MoS2-ZnO nanocomposite synthesized by hydrothermal method[J]. Acta Materiae Compositae Sinica, 2022, 39(5): 2226-2237. doi: 10.13801/j.cnki.fhclxb.20210820.002

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WANG Ziqiang, YUAN Huan, SUN Yifei, et al. Investigation on photocatalysis and room temperature gas sensing of MoS₂-ZnO nanocomposite synthesized by hydrothermal method[J]. Acta Materiae Compositae Sinica, 2022, 39(5): 2226-2237. doi: 10.13801/j.cnki.fhclxb.20210820.002

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Investigation on photocatalysis and room temperature gas sensing of MoS₂-ZnO nanocomposite synthesized by hydrothermal method

doi: 10.13801/j.cnki.fhclxb.20210820.002

Key Laboratory of Information Materials of Sichuan Province & School of Electronic Information, Southwest Minzu University, Chengdu 610041, China

Received Date: 2021-05-20
Accepted Date: 2021-08-07
Rev Recd Date: 2021-07-26

Available Online: 2021-08-20

Publish Date: 2022-03-23

Abstract

Abstract

To develop a high performance, recyclable, low cost photocatalyst. In this work, MoS₂ modified ZnO (MoS₂-ZnO) nanocomposites were prepared by a hydrothermal method. The morphology and optical properties of the samples were characterized by XRD, SEM, photoluminescence spectroscopy (PL) and XPS. We find that the prepared MoS₂-ZnO samples own a porous structure from SEM. And MoS₂ can not only enhance the separation efficiency of photocarriers in MoS₂-ZnO, but also increase the absorption of visible light region, resulting in improving the photo-catalytic and gas sensitive properties. Under simulated sunlight, the MoS₂-ZnO nanocomposite exhibits high photo-catalytic degradation activity for high concentration (15 mg/L) methylene blue dye (MB). At the same time, the MoS₂-ZnO-based gas sensor possesses a high sensitivity for NO₂ concentration of 2.05 mg/m³. This work offers a simple strategy to prepare highly efficient visible light-driven photocatalysts and gas sensors.
- ZnO,
- MoS₂,
- photocatalysis,
- gas sensing,
- methylene blue,
- porous structure,
- nanocomposite
Long Abstrsct
Innovation Points

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References(42)

References

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