Citation: GUO Li, ZHAO Qiang, ZHANG Yue-Cheng, ZHANG Yuan-Yuan, HAN Xuan-Xuan, ZHANG Kai-Lai, WANG Dan-Jun, FU Feng. Design and Construction of All-Solid Z-Scheme CdS/Au/Bi₂MoO₆ Heterostructure with Enhanced Photocatalytic Performance[J]. Chinese Journal of Inorganic Chemistry, ;2020, 36(1): 11-20. doi: 10.11862/CJIC.2020.023 shu

Design and Construction of All-Solid Z-Scheme CdS/Au/Bi₂MoO₆ Heterostructure with Enhanced Photocatalytic Performance

College of Chemistry & Chemical Engineering, Yan'an University, Shaanxi Key Laboratory of Chemical Reaction Engineering, Yan'an, Shaanxi 716000, China

Corresponding author: WANG Dan-Jun, wangdj761118@163.com FU Feng, yadxfufeng@126.com
Received Date: 7 August 2019
Revised Date: 19 November 2019

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The Z-scheme CdS/Au/Bi₂MoO₆ heterostructure have been successfully synthesized by CdS and Au co-modification via a facile chemical reduction deposition and secondary hydrothermal method. X-ray diffraction (XRD), X-ray photo-electron spectroscopy (XPS), transmission electron microscope (TEM), scanning electron microscopy (SEM) and other testing techniques were employed to systematically characterize its composition, morphology, optical absorption characteristics and photoelectrochemical properties. The experimental results showed that CdS/Au/Bi₂MoO₆-2 composite showed the best degradation efficiency under visible light irradiation, and the degradation rate of RhB was about 8.8 and 20 times that of Bi₂MoO₆ and CdS, respectively. As a solid electronic medium, Au NPs provides a channel for the transmission and transfer of photogenerated electrons. Meanwhile, the response range of the catalytic system to visible light was significantly broadened through Au NPs surface plasmon resonance (SPR) effect and CdS nanoparticles. Besides, the energy band structure of CdS/Au/BMO was determined through the characterizations of the composition, photoelectrochemical properties and valance band-XPS results of the as-prepared photocatalyst. Moreover, the mechanism for the enhancement of the photocatalytic activity of CdS/Au/BMO was also discussed by comparison of their photoluminescence spectra and electron spin resonance spectroscopy (ESR) spectra.
- Z-scheme CdS/Au/Bi₂MoO₆ heterostructure,
- surface plasmon resonance (SPR) effect,
- photocatalysis,
- RhB
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Design and Construction of All-Solid Z-Scheme CdS/Au/Bi2MoO6 Heterostructure with Enhanced Photocatalytic Performance

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Design and Construction of All-Solid Z-Scheme CdS/Au/Bi₂MoO₆ Heterostructure with Enhanced Photocatalytic Performance