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Vol. 37 No. 6 (2025): Vol 37 Issue 6, 2025

Copyright (c) 2025 Sunil G. Shelar, Sandip P. Patil, Vilas Mahajan, P.K. Labhane, B.S. Bhadane, A.D. Mudawadkar, Gunvant Sonawane

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This work is licensed under a Creative Commons Attribution 4.0 International License.

Layered Zn doped WO3 Nanoplates Fabricated via Hydrothermal Method for Efficient Photocatalytic Degradation of Congo Red Dye

https://doi.org/10.14233/ajchem.2025.33697
Sunil G. Shelar
Department of Chemistry, K.V.P.S. Kisan Arts, Commerce and Science College, Parola-425111, India; Department of Chemistry, S.R.N.D. Arts, Commerce and Science College, Bhadgaon-424105, India
https://orcid.org/0009-0007-7911-2169
Sandip P. Patil
Nano-Chemistry Research Laboratory, N.T.V.S.’s G.T. Patil Arts, Commerce and Science College, Nandurbar-425412, India
https://orcid.org/0000-0002-9842-6290
Vilas K. Mahajan
Department of Chemistry, K.V.P.S. Kisan Arts, Commerce and Science College, Parola-425111, India
https://orcid.org/0009-0009-8453-2699
P.K. Labhane
Department of Chemistry, MGSM’s Dadasaheb Dr. Suresh G. Patil College, Chopda-425107, India
https://orcid.org/0000-0002-3311-3963
B.S. Bhadane
Department of Chemistry, K.V.P.S. Kisan Arts, Commerce and Science College, Parola-425111, India
https://orcid.org/0009-0005-8558-9997
A.D. Mudawadkar
Department of Chemistry, K.V.P.S. Kisan Arts, Commerce and Science College, Parola-425111, India
https://orcid.org/0009-0002-7032-621X
Gunvant H. Sonawane
Department of Chemistry, K.V.P.S. Kisan Arts, Commerce and Science College, Parola-425111, India
https://orcid.org/0000-0002-8122-3702

Corresponding Author(s) : Gunvant H. Sonawane

drgunvantsonawane@gmail.com

Asian Journal of Chemistry, Vol. 37 No. 6 (2025): Vol 37 Issue 6, 2025

Abstract

Orthorhombic Zn doped WO3 nanoplates (1, 2 and 5 wt.%) were fabricated by a simple and economical hydrothermal method. The photocatalytic activity of Zn doped WO3 nanoplates was studied by degradation of Congo red dye under visible light radiation. The effects of different experimental parameters like the dye concentration, photocatalyst dose and pH on the photocatalytic efficiency were explored under identical conditions. The kinetics study shows that the photocatalytic degradation follows first order kinetics. The photocatalytic degradation was found to enhance with increased Zn-doped WO3 nanoplates. If the effect of Zn doping compared, then photocatalytic degradation efficiency for 5 wt.% Zn doped WO3 was highest. The inclusion of Zn in the lattice of WO3 was observed to be distinctive enough to enhance their photo-degradation efficiency under visible-light. Further, Zn doping not only restricts the recombination of photo induced electron–hole pairs but also enhances the photostability of WO3.

Keywords

Congo red Tungsten trioxide Photocatalysis Kinetics Thermodynamic study
(1)
Shelar, S. G.; Patil, S. P.; Mahajan, V. K.; Labhane, P.; Bhadane, B.; Mudawadkar, A.; Sonawane, G. H. Layered Zn Doped WO3 Nanoplates Fabricated via Hydrothermal Method for Efficient Photocatalytic Degradation of Congo Red Dye. ajc 2025, 37, 1307-1314.
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