Email this article SYNTHESIS AND INVESTIGATION OF PHOTOCATALYTIC ACTIVITY OF CeO2: Eu3+, Al3+ NANOMATERIALS
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Received: 15/09/22 Revised: 04/11/22 Published: 07/11/22Authors
1. Le Hong Lien, Bao Thang 2 High school – Lao Cai2. Duong Thi Thu Huong, TNU - University of Information and Communication tTechnology
3. Le Tien Ha, TNU - University of Sciences
4. Hoang Nhu Van, 1) Phenikaa University, 2) Phenikaa Research and Technology Institute (PRATI) - A&A Green Phoenix Group JSC
5. Phung Thi Lan, Hanoi National University of Education
6. Nguyen Thi Anh Vui, Hanoi National University of Education
7. Nguyen Van Hai
, Hanoi National University of Education
Abstract
This paper reports the photocatalytic properties of CeO2:4%Eu3+, xAl3+ (x = 0, 2, 4, 6, and 8% mol) phosphors that were synthesized by a facile combustion method. The nanoparticles were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), energy dispersive x-rays (EDX), and UV–Visible spectroscopy (UV–Vis). XRD analysis showed the formation of a single-phase fluorite CeO2. SEM images confirmed the spherical-like-shaped particles with an average size of about 60 nm. Especially, all the samples exhibited excellent photocatalytic activity, and they revealed degradation capacities of approximately 98% after 90 min under ultra-violet (UV-C) lamp irradiation (λ = 254 nm) at room temperature. There results indicate that the CeO2:Eu3+, Al3+ materials are suitable for photocatalytic applications.
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DOI: https://doi.org/10.34238/tnu-jst.6511
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