title: Photocatalytic degradation of methyl orange by CeO2 and Fe-doped CeO2 films under visible light irradiation.
abstract: Undoped CeO2 and 0.50-5.00 mol% Fe-doped CeO2 nanoparticles were prepared by a homogeneous precipitation combined with homogeneous/impreganation method, and applied as photocatalyst films prepared by a doctor blade technique. The superior photocatalytic performances of the Fe-doped CeO2 films, compared with undoped CeO2 films, was ascribed mainly to a decrease in band gap energy and an increase in specific surface area of the material. The presence of Fe(3+) as found from XPS analysis, may act as electron acceptor and/or hole donor, facilitating longer lived charge carrier separation in Fe-doped CeO2 films as confirmed by photoluminescence spectroscopy. The 1.50 mol% Fe-doped CeO2 film was found to be the optimal iron doping concentration for MO degradation in this study.
authors.affiliation: Department of Chemistry, Faculty of Science, Chiang Mai University, Chiang Mai 50200, Thailand.
authors.forename: D
authors.initials: D
authors.lastname: Channei
authors.affiliation: Department of Chemistry, Faculty of Science, Chiang Mai University, Chiang Mai 50200, Thailand.
authors.forename: B
authors.initials: B
authors.lastname: Inceesungvorn
authors.affiliation: Department of Physics and Materials Science, Faculty of Science, Chiang Mai University, Chiang Mai 50200, Thailand.
authors.forename: N
authors.initials: N
authors.lastname: Wetchakun
authors.affiliation: School of Materials Science and Engineering, University of New South Wales, Sydney, NSW 2052, Australia.
authors.forename: S
authors.initials: S
authors.lastname: Ukritnukun
authors.affiliation: Intelligent Polymer Research Institute, ARC Centre of Excellent for Electromaterials Science, Australian Institute of Innovative Materials, University of Wollongong, Wollongong, NSW 2522, Australia.
authors.forename: A
authors.initials: A
authors.lastname: Nattestad
authors.affiliation: Intelligent Polymer Research Institute, ARC Centre of Excellent for Electromaterials Science, Australian Institute of Innovative Materials, University of Wollongong, Wollongong, NSW 2522, Australia.
authors.forename: J
authors.initials: J
authors.lastname: Chen
authors.affiliation: Materials Science Research Center, Faculty of Science, Chiang Mai University, Chiang Mai 50200, Thailand.
authors.forename: S
authors.initials: S
authors.lastname: Phanichphant