Publication Type Journal Article
Title Influence of calcination parameters on the TiO2 photocatalytic properties
Authors A. M. Luis Marcia C. Neves M. H. Mendonca O. Monteiro
Groups
Journal MATERIALS CHEMISTRY AND PHYSICS
Year 2011
Month January
Volume 125
Number 1
Pages 20-25
Abstract Nanocrystalline titanium dioxide (TiO2) powders with different crystal phase composition were obtained by controlled hydrolysis and post-thermal treatments. The physicochemical properties of the powders were investigated by XRD, TEM/EDS, N-2 physic adsorption and DRS. The results obtained show that the particle size and crystalline structure are parameters strongly dependent on the calcination conditions, mainly temperature and heating rate. The influence of the TiO2 phase composition on its photocatalytic activity, concerning the methylene blue photodegradation was studied. It was found that higher TiO2 photocatalytic activity is related with the co-existence of the three TiO2 polymorphs: anatase, brookite and rutile. (C) 2010 Elsevier B.V. All rights reserved.
DOI http://dx.doi.org/10.1016/j.matchemphys.2010.08.019
ISBN
Publisher
Book Title
ISSN 0254-0584
EISSN 1879-3312
Conference Name
Bibtex ID ISI:000285285100006
Observations
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