Influence of solvent on the morphology and photocatalytic properties of ZnS decorated CeO{sub 2} nanoparticles

Herein, we report a theoretical and experimental study on the photocatalytic activity of CeO{sub 2} ZnS, and ZnS decorated CeO{sub 2} nanoparticles prepared by a microwave-assisted solvothermal method. Theoretical models were established to analyze electron transitions primarily at the interface bet...

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Bibliographic Details
Published in:Journal of applied physics 2014-06, Vol.115 (21)
Main Authors: Raubach, Cristiane W., Polastro, Lisânias, Ferrer, Mateus M., Perrin, Andre, Perrin, Christiane, Albuquerque, Anderson R., Buzolin, Prescila G. C., Sambrano, Julio R., Santana, Yuri B. V. de, Varela, José A., Longo, Elson
Format: Article
Language:English
Subjects:
CERIUM OXIDES
CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY
DEFECTS
DISTRIBUTION
INTERFACES
MICROWAVE RADIATION
NANOPARTICLES
NANOSCIENCE AND NANOTECHNOLOGY
PHOTOCATALYSIS
SIMULATION
SOLVENTS
VACANCIES
ZINC SULFIDES
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Summary:Herein, we report a theoretical and experimental study on the photocatalytic activity of CeO{sub 2} ZnS, and ZnS decorated CeO{sub 2} nanoparticles prepared by a microwave-assisted solvothermal method. Theoretical models were established to analyze electron transitions primarily at the interface between CeO{sub 2} and ZnS. As observed, the particle morphology strongly influenced the photocatalytic degradation of organic dye Rhodamine B. A model was proposed to rationalize the photocatalytic behavior of the prepared decorated systems taking into account different extrinsic and intrinsic defect distributions, including order-disorder effects at interfacial and intra-facial regions, and vacancy concentration.
ISSN:0021-8979
1089-7550
DOI:10.1063/1.4880795