Flame-made visible light active TiO2:Cr photocatalysts: correlation between structural, optical and photocatalytic properties

Michalow, Katarzyna A.; Otal, Eugenio H.; Burnat, Dariusz; Fortunato, Giuseppino; Emerich, Hermann; Ferri, Davide; Heel, Andre; Graule, Thomas

doi:10.1016/j.cattod.2012.10.007

Publication type:	Article in scientific journal
Type of review:	Peer review (publication)
Title:	Flame-made visible light active TiO2:Cr photocatalysts: correlation between structural, optical and photocatalytic properties
Authors:	Michalow, Katarzyna A. Otal, Eugenio H. Burnat, Dariusz Fortunato, Giuseppino Emerich, Hermann Ferri, Davide Heel, Andre Graule, Thomas
DOI:	10.1016/j.cattod.2012.10.007
Published in:	Catalysis Today
Volume(Issue):	209
Page(s):	47
Pages to:	53
Issue Date:	2013
Publisher / Ed. Institution:	Elsevier
ISSN:	0920-5861
Language:	English
Subjects:	Visible light; Flame spray synthesis; Formaldehyde; Photocatalysis; XANES; Chromium doping
Subject (DDC):	540: Chemistry
Abstract:	TiO2:Cr nanoparticles with dopant concentration from 0.1 to 10 at.% were synthesized by a liquid-fed one-step flame spray synthesis. All investigated nanopowders were synthesized with a specific surface area of about 60 m2 g-1. Undoped flame-made TiO2 consisted mainly of anatase. The increase of Cr content in TiO2:Cr nanopowder was accompanied by a decrease of the anatase phase and a consequent increase of the rutile polymorph. The comparison of the XANES spectra of samples with different doping level of Cr showed that Cr is incorporated in the structure. The presence and the concentration of Cr significantly affected the optical properties of TiO2 and caused a red-shift of the fundamental absorption edge. Photocatalytic performance of TiO2 for the gas phase formaldehyde decomposition under visible light irradiation was enhanced by Cr doping and reached its maximum at 3 at.% Cr.
URI:	https://digitalcollection.zhaw.ch/handle/11475/9261
Fulltext version:	Published version
License (according to publishing contract):	Licence according to publishing contract
Departement:	School of Engineering
Organisational Unit:	Institute of Materials and Process Engineering (IMPE)
Appears in collections:	Publikationen School of Engineering

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Michalow, K. A., Otal, E. H., Burnat, D., Fortunato, G., Emerich, H., Ferri, D., Heel, A., & Graule, T. (2013). Flame-made visible light active TiO2:Cr photocatalysts: correlation between structural, optical and photocatalytic properties. Catalysis Today, 209, 47–53. https://doi.org/10.1016/j.cattod.2012.10.007

Michalow, K.A. et al. (2013) ‘Flame-made visible light active TiO2:Cr photocatalysts: correlation between structural, optical and photocatalytic properties’, Catalysis Today, 209, pp. 47–53. Available at: https://doi.org/10.1016/j.cattod.2012.10.007.

K. A. Michalow et al., “Flame-made visible light active TiO2:Cr photocatalysts: correlation between structural, optical and photocatalytic properties,” Catalysis Today, vol. 209, pp. 47–53, 2013, doi: 10.1016/j.cattod.2012.10.007.

MICHALOW, Katarzyna A., Eugenio H. OTAL, Dariusz BURNAT, Giuseppino FORTUNATO, Hermann EMERICH, Davide FERRI, Andre HEEL und Thomas GRAULE, 2013. Flame-made visible light active TiO2:Cr photocatalysts: correlation between structural, optical and photocatalytic properties. Catalysis Today. 2013. Bd. 209, S. 47–53. DOI 10.1016/j.cattod.2012.10.007

Michalow, Katarzyna A., Eugenio H. Otal, Dariusz Burnat, Giuseppino Fortunato, Hermann Emerich, Davide Ferri, Andre Heel, and Thomas Graule. 2013. “Flame-Made Visible Light Active TiO2:Cr Photocatalysts: Correlation between Structural, Optical and Photocatalytic Properties.” Catalysis Today 209: 47–53. https://doi.org/10.1016/j.cattod.2012.10.007.

Michalow, Katarzyna A., et al. “Flame-Made Visible Light Active TiO2:Cr Photocatalysts: Correlation between Structural, Optical and Photocatalytic Properties.” Catalysis Today, vol. 209, 2013, pp. 47–53, https://doi.org/10.1016/j.cattod.2012.10.007.