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Vol. 38 No. 4 (2026): Vol 38 Issue 4, 2026

Copyright (c) 2026 Netaji Mali, Amol Bhosale, Shaila Dhotre, Shrikant Takle, Ravindra Mene, Namdeo Bhujbal

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

Ce doped ZnO Catalyst for Degradation of Triethylamine under Solar Light: A Comparative Study of Sol-Gel and Co-precipitation Synthesis

https://doi.org/10.14233/ajchem.2026.35527
Netaji P. Mali
Department of Chemistry, Annasaheb Magar Mahavidyalaya, Hadapsar, Pune-411028, India
https://orcid.org/0009-0000-3018-8030
Amol S. Bhosale
Department of Chemistry, Annasaheb Magar Mahavidyalaya, Hadapsar, Pune-411028, India
https://orcid.org/0009-0000-3018-8030
Shaila B. Dhotre
Department of Chemistry, Annasaheb Magar Mahavidyalaya, Hadapsar, Pune-411028, India
https://orcid.org/0009-0003-3026-5181
Shrikant P. Takle
Department of Chemistry, Annasaheb Magar Mahavidyalaya, Hadapsar, Pune-411028, India
https://orcid.org/0000-0003-2966-6175
Ravindra Mene
Department of Physics, Annasaheb Magar Mahavidyalaya, Hadapsar, Pune-411028, India
https://orcid.org/0000-0003-1248-4092
Namdeo N. Bhujbal
Department of Chemistry, Annasaheb Magar Mahavidyalaya, Hadapsar, Pune-411028, India
https://orcid.org/0009-0008-5778-1932

Corresponding Author(s) : Netaji P. Mali

malinetaji@gmail.com

Asian Journal of Chemistry, Vol. 38 No. 4 (2026): Vol 38 Issue 4, 2026

Abstract

Zinc oxide (ZnO) and cerium-doped ZnO (Ce-ZnO) nanoparticles were produced through sol-gel (SG) and coprecipitation (CPPT) techniques. The impact of cerium doping, ranging from 1% to 5% on the structural, morphological, optical, photoluminescence and photocatalytic characteristics was examined. X-ray diffraction analysis suggested a well-defined hexagonal wurtzite structure. The largest crystallite sizes were 56 nm for 2% Ce-ZnO (SG) and 70 nm for 3% Ce-ZnO (CPPT). The morphology of the particles was affected by the cerium concentration. FESEM, EDS mapping and HR-TEM indicates a uniform distribution of cerium and a hexagonal shape. UV-DRS analysis indicated strong absorption below 450 nm with a reduction in bandgap from 3.13 eV of undoped ZnO to 2.32 eV (SG) and 2.37 eV (CPPT) of Ce-ZnO, whereas photoluminescence showed a blue-shifted emission around 427-425 nm. TGA implies the thermal stability upto above 680 ºC. Ce-ZnO achieved up to 98% (SG) and 85% (CPPT) photodegradation of triethylamine (TEA) under sunlight as monitored by UV-Vis spectroscopy and TOC analysis.

Keywords

Sol-gel Co-precipitation Amine degradation Triethylamine
(1)
Mali, N. P.; Bhosale, A. S.; Dhotre, S. B.; Takle, S. P.; Mene, R. U.; Bhujbal, N. N. Ce Doped ZnO Catalyst for Degradation of Triethylamine under Solar Light: A Comparative Study of Sol-Gel and Co-Precipitation Synthesis. ajc 2026, 38, 1073-1086.
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