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Synthesis and characterization of Ce and Er doped ZrO2 nanoparticles as solar light driven photocatalysts

Gionco, Chiara, Hernández, Simelys, Castellino, Micaela, Gadhi, Tanveer Ahmed, Muñoz-Tabares, José Alejandro, Cerrato, Erik, Tagliaferro, Alberto, Russo, Nunzio and Paganini, Maria Cristina 2019. Synthesis and characterization of Ce and Er doped ZrO2 nanoparticles as solar light driven photocatalysts. Journal of Alloys and Compounds 775 , pp. 896-904. 10.1016/j.jallcom.2018.10.046

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Abstract

In this work, nanostructured rare-earth-doped zirconia was successfully synthesized, through a simple hydrothermal method, with a rare-earth oxide (REO)-based content varying from 0.5 to 5% molar (REO = CeO2; Er2O3). The samples were characterized by using several techniques, such as X-ray diffraction, transmission electron microscopy, X-ray photoelectron spectroscopy, diffuse reflectance spectroscopy. The photoactivity of the samples was tested under irradiation with simulated solar light by both the spin trapping technique, using DMPO (5,5-dimethyl-1-pyrroline-N-oxide) as spin trapping agent, and by the photodegradation of Rhodamine B, a common textile dye. All the doped samples resulted more active than the bare zirconia, and the correlation between the physical-chemical properties and the photoactivity of the materials has been investigated.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Chemistry
Publisher: Elsevier
ISSN: 0925-8388
Date of Acceptance: 6 October 2018
Last Modified: 04 Feb 2021 15:30
URI: http://orca.cardiff.ac.uk/id/eprint/138215

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