The effect of W dopants on the physical and optical properties and photocatalytic activity of ZnO synthesized by the co-precipitation method

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Published: Jun 30, 2025
Keywords:
W-doped ZnO Co-precipitation Physical property Optical property Photocatalysis

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Junkrajang Wattana
KMITL
Maneerat Songpanit
School of Integrated Innovative Technology, King Mongkut’s Institute of Technology Ladkrabang, Bangkok, 10520, Thailand
Thanaphon Kansaard
School of Integrated Innovative Technology, King Mongkut’s Institute of Technology Ladkrabang, Bangkok, 10520, Thailand
Jirayu Tachaworakit
School of Integrated Innovative Technology, King Mongkut’s Institute of Technology Ladkrabang, Bangkok, 10520, Thailand
Thinnasit Thanathaninruj
School of Integrated Innovative Technology, King Mongkut’s Institute of Technology Ladkrabang, Bangkok, 10520, Thailand
Chatpong Bangbai
Department of Science and Mathematics, Faculty of Science and Health Technology, Kalasin University, Kalasin, 46000, Thailand
Wanichaya Mekprasart
School of Integrated Innovative Technology, King Mongkut’s Institute of Technology Ladkrabang, Bangkok, 10520, Thailand

Abstract

Due to the wastewater crisis, tungsten (W)-doped ZnO particles were synthesized with varying W dopant concentrations using the co-precipitation method for the enhancement of photocatalysis application, which can reduce the wastewater crisis by the degradation of pollutant molecules occurring by its process. The crystalline and optical properties of the synthesized powders were analyzed by various methods as well as photocatalytic performance. Among all conditions, the WZ-5 sample exhibited the lowest band gap energy at 3.11 eV and the highest photocatalytic efficiency, achieving 98.16% degradation within 60 minutes. These results demonstrate that tungsten doping can effectively enhance ZnO photocatalytic activity by promoting better charge carrier separation and extending light absorption, especially in the visible region, making W-doped ZnO a promising material for wastewater treatment applications.

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1.
Wattana J, Songpanit M, Kansaard T, Tachaworakit J, Thanathaninruj T, Bangbai C, Mekprasart W. The effect of W dopants on the physical and optical properties and photocatalytic activity of ZnO synthesized by the co-precipitation method. Thai J. Nanosci. Nanotechnol. [internet]. 2025 Jun. 30 [cited 2025 Jul. 23];10(1):01-14. available from: https://ph05.tci-thaijo.org/index.php/TJNN/article/view/178
Issue
Vol. 10 No. 1 (2025): TJNN
Section
Research Articles
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This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

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