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http://hdl.handle.net/10773/19764
Title: | Fully quantitative X-ray characterisation of Evonik Aeroxide TiO2 P25 (R) |
Author: | Tobaldi, D. M. Pullar, R. C. Seabra, M. P. Labrincha, J. A. |
Keywords: | DEGUSSA P25 MICROSTRUCTURAL CHARACTERIZATION PHOTOCATALYTIC DEGRADATION TITANIA RUTILE ANATASE ACID |
Issue Date: | 2014 |
Publisher: | ELSEVIER SCIENCE BV |
Abstract: | Photocatalysis with TiO2 is one of the most promising methods for combatting environmental pollution. Of commercially available photocatalysts, Evonik Aeroxide (formerly Degussa) P25 (R) titania is probably the most extensively used. In this communication, we quantitatively characterise the full phase composition (both crystalline and amorphous content) of P25, as well as the microstructure of individual phases (crystalline domain size distribution and dislocation density). This was achieved with advanced X-ray diffraction (XRD) methods: Rietveld-RIR and whole powder pattern modelling (WPPM). Quantitative phase analysis (QPA) showed the precise composition of P25 to be 76.3 wt% anatase, 10.6 wt % rutile and 13.0 wt% amorphous, and microstructural details are given for the two crystalline phases. (C) 2014 Elsevier B.V. All rights reserved. |
Peer review: | yes |
URI: | http://hdl.handle.net/10773/19764 |
DOI: | 10.1016/j.matlet.2014.02.055 |
ISSN: | 0167-577X |
Publisher Version: | 10.1016/j.matlet.2014.02.055 |
Appears in Collections: | CICECO - Artigos |
Files in This Item:
File | Description | Size | Format | |
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Fully quantitative X-ray characterisation of Evonik Aeroxide TiO 2 P25®_10.1016j.matlet.2014.02.055.pdf | 481.05 kB | Adobe PDF |
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