Atikur Rahman,
Manoj Kumar,
- Professor, Department of Metallurgical and Materials Engineering, National Institute of Technology, Hazratbal, Srinagar, Jammu and Kashmir, India
- Research Scholar, Department of Metallurgical and Materials Engineering, National Institute of Technology, Hazratbal, Srinagar, Jammu and Kashmir, India
Abstract
The current study aimed to examine the photocatalytic efficacy of a bimetallic CeO2-La2O3 hetero-NC in comparison to monometallic CeO2 and La2O3 nanoparticles (NPs), utilizing Methylene Blue (MB)as pollutant sample under natural solar and UV irradiation. The coprecipitation method was utilized to produce a bimetallic CeO2-La2O3 hetero-NC. Following this, the nanostructures underwent characterization through various techniques including FT-IR, FE-SEM, XRD, UV Vis- DRS, Raman, and Photoluminescence spectroscopy. The catalytic activity of the bimetallic CeO2-La2O3 hetero-NC is superior and follows pseudo-first-order kinetics. In addition, the photocatalytic mechanism has been briefly explained. The bimetallic CeO2-La2O3 hetero-NC exhibits higher photocatalytic activity 93% against MB than pure CeO2 and La2O3 due to the formation of p-n heterostructures. In 100 min under UV conditions, CeO2 degraded 78% of MB, while La2O3 only degraded 58%. Similarly, under solar irradiation, CeO2-La2O3 NC demonstrated 96% effectiveness in 180 minutes when compared to pure metal oxide nanoparticles. The findings suggest that the bimetallic CeO2-La2O3 hetero-NC has desirable structural and optical properties, making it a promising material for optoelectronic and photocatalytic applications.
Keywords: Wastewater treatment,Oxide NPs, bimetallic heterocomposites, characterization studies, p-n heterojunction, photocatalytic activities.
[This article belongs to Special Issue under section in Journal of Polymer and Composites (jopc)]
Atikur Rahman, Manoj Kumar. Improved Photocatalytic Activity for Removal of Methylene Blue Dye from Aqueous Solutions with La2O3-Modified Ceria Heterostructured Binary Oxide Nanocomposite Particles. Journal of Polymer and Composites. 2025; 13(04):514-532.
Atikur Rahman, Manoj Kumar. Improved Photocatalytic Activity for Removal of Methylene Blue Dye from Aqueous Solutions with La2O3-Modified Ceria Heterostructured Binary Oxide Nanocomposite Particles. Journal of Polymer and Composites. 2025; 13(04):514-532. Available from: https://journals.stmjournals.com/jopc/article=2025/view=222062
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Journal of Polymer and Composites
| Volume | 13 |
| Special Issue | 04 |
| Received | 12/11/2024 |
| Accepted | 02/06/2025 |
| Published | 15/06/2025 |
| Publication Time | 215 Days |
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