Adsorption and photo-oxidation of acetaldehyde on TiO2 and sulfate-modified TiO2: Studies by in situ FTIR spectroscopy and micro-kinetic modeling

Adsorption and photocatalytic oxidation of acetaldehyde on TiO2 and SO4–TiO2. Acetaldehyde condensation to crotonaldehyde occurs on TiO2, but not on SO4–TiO2. Photo-oxidation of intermediates formate is the rate-determining step on TiO2, while it is acetaldehyde photo-oxidation on SO4–TiO2. •Sulfate...

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Veröffentlicht in:	Journal of catalysis 2013-11, Vol.307, p.265-274
Hauptverfasser:	Topalian, Z., Stefanov, B.I., Granqvist, C.G., Österlund, L.
Format:	Artikel
Sprache:	eng
Schlagworte:	Acetaldehyde acidity Acid–base properties Adsorption air Catalysis Catalysts Catalytic oxidation Chemistry desorption Exact sciences and technology Fourier transform infrared spectroscopy General and physical chemistry In situ Fourier transform infrared spectroscopy Micro-kinetic modeling oxidation Photocatalysis Photochemistry photooxidation Physical chemistry of induced reactions (with radiations, particles and ultrasonics) spectral analysis Surface functionalization Surface physical chemistry Theory of reactions, general kinetics. Catalysis. Nomenclature, chemical documentation, computer chemistry TiO2 titanium dioxide wettability
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