| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1333041 | Journal of Solid State Chemistry | 2008 | 9 Pages |
Several approaches have been investigated to prepare fluorite-type compositions within the (1−x) CeO2–xYO1.5 system. The optical properties of the resulting modified-ceria materials have been characterized in order to evaluate their potential abilities as inorganic UV absorbers. Diffuse reflectance analyses reveal a strong optical absorption between 390 and 400 nm for all substituted compositions and the spectral selectivities are estimated suitable for the targeted application. Additionally, time resolved microwave conductivity (TRMC) and phenol photodegradation analyses do not indicate any photocalatytic activity for these compositions. Aqueous colloidal suspensions of the Ce0.7Y0.3O1.85 UV absorber have been carried out.
Graphical abstractComparison between diffuse reflectance spectra of ceria (x=0) and yttrium modified ceria (x=0.3).Figure optionsDownload full-size imageDownload as PowerPoint slide
