Journal
APPLIED CATALYSIS B-ENVIRONMENTAL
Volume 95, Issue 1-2, Pages 130-136Publisher
ELSEVIER
DOI: 10.1016/j.apcatb.2009.12.019
Keywords
Nanotitania; Mesoporous silica; NOx oxidation; Photocatalysis
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Nanotitania supported on mesoporous silica systems were synthesized by a reliable procedure based on an incipient wetness impregnation post-synthetic approach. Characterization by X-ray diffraction, N-2 physisorption, TEM, X-ray photoelectron spectroscopy, ICP has been carried out in order to investigate the chemical-physical properties of the catalysts with particular attention to the chemical nature of the titanium species. The photocatalytic activity of the samples was evaluated for the degradation of NOx in the gas phase. The influence of both the textural properties and the nature of titanium species on the photocatalytic activity is discussed. (C) 2009 Elsevier B.V. All rights reserved.
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