A facile hydrothermal synthesis of CeO2 nanocubes decorated ZnO nanostructures: optical and enhanced photocatalytic properties

Synthesis of CeO 2 , ZnO, and CeO 2 nanocubes decorated on the surface of ZnO ovals via a simple hydrothermal method was investigated. The crystalline nature and purity of CeO 2 , ZnO and CeO 2 decorated ZnO were confirmed through X-ray diffraction (XRD) by the co-existence of cubic and hexagonal wu...

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Bibliographic Details
Published in:Journal of materials science. Materials in electronics 2019-06, Vol.30 (12), p.11643-11651
Main Authors: Farhang-Sahlevani, Saeed, Pandiyarajan, Thangaraj, Sanhueza, Felipe, Akbari-Fakhrabadi, Ali, Mansilla, Héctor D., Contreras, David, Mangalaraja, Ramalinga Viswanathan, Gracia-Pinilla, M. A.
Format: Article
Language:English
Subjects:
Catalytic activity
Cerium oxides
Characterization and Evaluation of Materials
Chemistry and Materials Science
Decoration
Diffuse reflectance spectroscopy
Image transmission
Light irradiation
Materials Science
Methylene blue
Morphology
Nanostructure
Optical and Electronic Materials
Optical properties
Oxidation
Photocatalysis
Photodegradation
Photoelectrons
Photoluminescence
Spectrum analysis
Synthesis
Transmission electron microscopy
Visibility
Wurtzite
X ray photoelectron spectroscopy
X-ray diffraction
Zinc oxide
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Summary:Synthesis of CeO 2 , ZnO, and CeO 2 nanocubes decorated on the surface of ZnO ovals via a simple hydrothermal method was investigated. The crystalline nature and purity of CeO 2 , ZnO and CeO 2 decorated ZnO were confirmed through X-ray diffraction (XRD) by the co-existence of cubic and hexagonal wurtzite phase of CeO 2 and ZnO, respectively. The transmission electron microscopy (TEM) images revealed that CeO 2 nanocubes were well decorated on the surface of ZnO in oval morphology. The optical properties of the prepared materials were investigated using diffuse reflectance spectroscopy (DRS) and photoluminescence (PL) spectra and also, the oxidation species presented in the materials were identified through X-photoelectron spectroscopy (XPS) spectra survey. The photocatalytic activity of CeO 2 decorated ZnO nanostructures against methylene blue (MB) as a model pollutant under visible light irradiation was enhanced when compared to those of the pure CeO 2 and ZnO nanostructures. The reusability of catalyst studies revealed that the efficiency of the visibility light degradation of MB was increased upon the CeO 2 deposited on the ZnO surfaces.
ISSN:0957-4522
1573-482X
DOI:10.1007/s10854-019-01521-8