Kinetics Study of Photocatalytic Activity of Flame-Made Unloaded and Fe-Loaded CeO2 Nanoparticles
Joint Authors
Channei, D.
Wetchakun, Natda
Phanichphant, Sukhon
Inceesungvorn, Burapat
Source
International Journal of Photoenergy
Issue
Vol. 2013, Issue 2013 (31 Dec. 2013), pp.1-9, 9 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2013-11-21
Country of Publication
Egypt
No. of Pages
9
Main Subjects
Abstract EN
Unloaded CeO2 and nominal 0.50, 1.00, 1.50, 2.00, 5.00, and 10.00 mol% Fe-loaded CeO2 nanoparticles were synthesized by flame spray pyrolysis (FSP).
The samples were characterized to obtain structure-activity relation by X-ray diffraction (XRD), high-resolution transmission electron microscopy (HRTEM), Brunauer, Emmett, and Teller (BET) nitrogen adsorption, X-ray photoelectron spectroscopy (XPS), and UV-visible diffuse reflectance spectrophotometry (UV-vis DRS).
XRD results indicated that phase structures of Fe-loaded CeO2 nanoparticles were the mixture of CeO2 and Fe2O3 phases at high iron loading concentrations.
HRTEM images showed the significant change in morphology from cubic to almost-spherical shape observed at high iron loading concentration.
Increased specific surface area with increasing iron content was also observed.
The results from UV-visible reflectance spectra clearly showed the shift of absorption edge towards longer visible region upon loading CeO2 with iron.
Photocatalytic studies showed that Fe-loaded CeO2 sample exhibited higher activity than unloaded CeO2, with optimal 2.00 mol% of iron loading concentration being the most active catalyst.
Results from XPS analysis suggested that iron in the Fe3+ state might be an active species responsible for enhanced photocatalytic activities observed in this study.
American Psychological Association (APA)
Channei, D.& Inceesungvorn, Burapat& Wetchakun, Natda& Phanichphant, Sukhon. 2013. Kinetics Study of Photocatalytic Activity of Flame-Made Unloaded and Fe-Loaded CeO2 Nanoparticles. International Journal of Photoenergy،Vol. 2013, no. 2013, pp.1-9.
https://search.emarefa.net/detail/BIM-475325
Modern Language Association (MLA)
Channei, D.…[et al.]. Kinetics Study of Photocatalytic Activity of Flame-Made Unloaded and Fe-Loaded CeO2 Nanoparticles. International Journal of Photoenergy No. 2013 (2013), pp.1-9.
https://search.emarefa.net/detail/BIM-475325
American Medical Association (AMA)
Channei, D.& Inceesungvorn, Burapat& Wetchakun, Natda& Phanichphant, Sukhon. Kinetics Study of Photocatalytic Activity of Flame-Made Unloaded and Fe-Loaded CeO2 Nanoparticles. International Journal of Photoenergy. 2013. Vol. 2013, no. 2013, pp.1-9.
https://search.emarefa.net/detail/BIM-475325
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-475325