Synthesis and Characterization of CeO2-SiO2 Nanoparticles by Microwave-Assisted Irradiation Method for Photocatalytic Oxidation of Methylene Blue Dye
Joint Authors
Source
International Journal of Photoenergy
Issue
Vol. 2012, Issue 2012 (31 Dec. 2012), pp.1-9, 9 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2012-07-02
Country of Publication
Egypt
No. of Pages
9
Main Subjects
Abstract EN
CeO2-SiO2 nanoparticles were synthesized for the first time by a facile microwave-assisted irradiation process.
The effect of irradiation time of microwave was studied.
The materials were characterized by N2 adsorption, XRD, UV-vis/DR, and TEM.
All solids showed mesoporous textures with high surface areas, relatively small pore size diameters, and large pore volume.
The X-ray diffraction results indicated that the as-synthesized nanoparticles exhibited cubic CeO2 without impurities and amorphous silica.
The transmission electron microscopy (TEM) images revealed that the particle size of CeO2-SiO2 nanoparticles, which were prepared by microwave method for 30 min irradiation times, was around 8 nm.
The photocatalytic activities were evaluated by the decomposition of methylene blue dye under UV light irradiations.
The results showed that the irradiation under the microwave produced CeO2-SiO2 nanoparticles, which have the best crystallinity under a shorter irradiation time.
This indicates that the introduction of the microwave really can save energy and time with faster kinetics of crystallization.
The sample prepared by 30 min microwave irradiation time exhibited the highest photocatalytic activity.
The photocatalytic activity of CeO2-SiO2 nanoparticles, which were prepared by 30 min irradiation times was found to have better performance than commercial reference P25.
American Psychological Association (APA)
Mohamed, R. M.& Aazam, Elham S.. 2012. Synthesis and Characterization of CeO2-SiO2 Nanoparticles by Microwave-Assisted Irradiation Method for Photocatalytic Oxidation of Methylene Blue Dye. International Journal of Photoenergy،Vol. 2012, no. 2012, pp.1-9.
https://search.emarefa.net/detail/BIM-508927
Modern Language Association (MLA)
Mohamed, R. M.& Aazam, Elham S.. Synthesis and Characterization of CeO2-SiO2 Nanoparticles by Microwave-Assisted Irradiation Method for Photocatalytic Oxidation of Methylene Blue Dye. International Journal of Photoenergy No. 2012 (2012), pp.1-9.
https://search.emarefa.net/detail/BIM-508927
American Medical Association (AMA)
Mohamed, R. M.& Aazam, Elham S.. Synthesis and Characterization of CeO2-SiO2 Nanoparticles by Microwave-Assisted Irradiation Method for Photocatalytic Oxidation of Methylene Blue Dye. International Journal of Photoenergy. 2012. Vol. 2012, no. 2012, pp.1-9.
https://search.emarefa.net/detail/BIM-508927
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-508927