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Investigation on the microstructural, optical, electrical, and photocatalytic properties of WO3 nanoparticles: an effect of Ce doping concentrations

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Abstract

The pure and Ce-doped WO3 nanoparticles (NPs) were synthesized by a simple chemical precipitation method. This work aims to study the impact of Ce on the structural, morphological, optical, electrical, dielectric, and photocatalytic activity of WO3 NPs. X-ray diffraction (XRD) spectra reveal the formation of the monoclinic structure of WO3 and Ce–WO3 NPs. The average crystallite size decreased from 37 to 31 nm when the Ce doping concentrations increased from 0 to 5%. The bandgap value of WO3 is 2.76 eV, which is reduced by increasing Ce concentrations. The 5% Ce-doped WO3 NPs exhibited maximum electrical conductivity of 5.01 × 10−7 S/cm. The frequency and temperature dependence DC conductivity of Ce-doped WO3 NPs were determined. The 5% Ce-doped WO3 NPs showed the highest photocatalytic activity; 87% of methyl orange (MO) dye was degraded under visible light irradiation.

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Acknowledgements

The authors thank the Deanship of Scientific Research at King Khalid University, KSA, for funding this work through a research group program under grant number RGP.2/188/44.

Funding

The Deanship of Scientific Research funded this study at King Khalid University, KSA (Grant No. RGP.2/188/44).

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Authors and Affiliations

  1. Department of Electrical and Electronics Engineering, Kumaraguru College of Technology, Coimbatore, 641049, Tamilnadu, India

    M. Mohanraj

  2. Department of Physics, Faculty of Science, King Khalid University, Post Box 9004, 61413, Abha, Saudi Arabia

    I. M. Ashraf & Mohd. Shkir

  3. School of Chemical Engineering, Yeungnam University, Gyeongsan, 38541, Republic of Korea

    Vasudeva Reddy Minnam Reddy & Woo Kyoung Kim

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MM: Processed the samples, compiled and analyzed the data, and wrote the manuscript. VRMR, and WKK: Conceptualization and validation IMA: Collected the samples and data analysis. TG and MS: Reviewing and editing.

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Correspondence to M. Mohanraj, Vasudeva Reddy Minnam Reddy or Woo Kyoung Kim.

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Mohanraj, M., Ashraf, I.M., Shkir, M. et al. Investigation on the microstructural, optical, electrical, and photocatalytic properties of WO3 nanoparticles: an effect of Ce doping concentrations. J Mater Sci: Mater Electron 34, 1961 (2023). https://doi.org/10.1007/s10854-023-11386-7

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