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Highly enhanced photoelectric catalysis of WO3 nanoblocks loaded with Ag nanoparticles

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Abstract

WO3/Ag composite film photoanodes were synthesized by hydrothermal combined electrodeposition method. Characterization of samples was conducted by scanning electron microscope (SEM) and X-ray diffraction (XRD), which showed that WO3/Ag composite films had been synthesized. Diffuse reflectance spectra show WO3/Ag composite film has more strong absorption than WO3 film under simulated visible light irradiation. Electrochemical impedance spectroscopy shows WO3/Ag composite film photoanode enhances charge transfer efficiency compared with WO3 film. WO3/Ag composite film photoanodes show higher photocurrent and photoelectric catalytic activity than WO3 film, and the WO3/Ag composite film obtained by depositing Ag nanoparticles at 50s (WO3/Ag-50) shows the highest photocurrent and photoelectric photoelectric catalytic activity. Meanwhile, the photoelectric catalytic activity of the composite film is higher than their direct photocatalytic and electric catalytic activity. The higher photocurrent and photoelectric catalytic activity of the WO3/Ag composite film photoanodes are attributed to the surface plasmon resonance effect of Ag nanoparticles and Schottky junction effect at the WO3/Ag interface.

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Authors and Affiliations

  1. School of Physics, Changchun University of Science and Technology, Changchun, 130022, China

    Jikai Yang, Chunlei Liu & Yufei Zhang

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  1. Jikai Yang
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  2. Chunlei Liu
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  3. Yufei Zhang
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Correspondence to Jikai Yang.

Additional information

This work has been supported by the Education Department Project of Jilin Province (No.JJKH20220726KJ), the Science and Technology Department Project of Jilin Province (No.20200201077JC), and the Natural Science Foundation of Chongqing City (No.CSTB2022NSCQ-MSX0751).

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The authors declare that there are no conflicts of interest related to this article.

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Yang, J., Liu, C. & Zhang, Y. Highly enhanced photoelectric catalysis of WO3 nanoblocks loaded with Ag nanoparticles. Optoelectron. Lett. 19, 193–199 (2023). https://doi.org/10.1007/s11801-023-2185-z

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  • DOI: https://doi.org/10.1007/s11801-023-2185-z

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