Construction and Enhanced Efficiency of Bi2MoO6/ZnO Compo-Sites for Visible-Light-Driven Photocatalytic Performance

Bi2MoO6 was one of the important bismuth-based semiconductors with a narrow bandgap, and has been widely used in selective oxidation catalysts, supercapacitors, and energy-storage devices. A series of Bi2MoO6/ZnO composite photocatalysts with different mass ratios were synthesized by the hydrotherma...

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Bibliographic Details
Published in:Nanomaterials (Basel, Switzerland) Switzerland), 2023-01, Vol.13 (1), p.214
Main Authors: Yan, Liyun, Tang, Jiahui, Qiao, Qing-an, Cai, Honglan, Dong, Yuqi, Jin, Juan, Xu, Yanbin, Gao, Hongwei
Format: Article
Language:English
Subjects:
Adsorption
Bi2MoO6/ZnO nanocomposites
Bismuth
Carrier recombination
Catalysts
Catalytic activity
Chemicals
Composite materials
degradation
Dyes
Efficiency
Electron transport
Energy storage
Ethanol
Heterojunctions
High temperature
Holes (electron deficiencies)
Light
Mass ratios
Methods
Methylene blue
Nanocomposites
Oxidation
Performance evaluation
Photocatalysis
photocatalyst
Photodegradation
Pollutants
Recombination
Semiconductors
Synthesis
X ray photoelectron spectroscopy
Zinc oxide
Zinc oxides
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Summary:Bi2MoO6 was one of the important bismuth-based semiconductors with a narrow bandgap, and has been widely used in selective oxidation catalysts, supercapacitors, and energy-storage devices. A series of Bi2MoO6/ZnO composite photocatalysts with different mass ratios were synthesized by the hydrothermal method. The synthesized samples were characterized by XRD, PL, UV-Vis, SEM, TEM, XPS, and BET analysis techniques. Under visible light conditions, Methylene blue (MB) was used as the target degradation product to evaluate its photocatalytic performance. The results showed that the degradation rate constant of Bi2MoO6/ZnO (0.4-BZO) was about twice that of the traditional photocatalysis of ZnO. The Bi2MoO6/ZnO composite catalyst maintained stable performance after four consecutive runs. The high photocatalytic activity of Bi2MoO6/ZnO was attributed to the efficient electron transport of the heterojunction, which accelerates the separation of electron-hole pairs and reduces the probability of carrier recombination near the Bi2MoO6/ZnO heterojunction. Bi2MoO6/ZnO nanocomposites have potential applications in the field of photodegradation.
ISSN:2079-4991
2079-4991
DOI:10.3390/nano13010214