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Title

Home-prepared anatase, rutile, and brookite TiO2 for selective photocatalytic oxidation of 4-methoxybenzyl alcohol in water: reactivity and ATR-FTIR study

AuthorsAugugliaro, Vincenzo; Loddo, Vittorio; López-Muñoz, María José; Márquez Álvarez, Carlos ; Palmisano, Giovanni; Palmisano, Leonardo; Yurdakal, Sedat
KeywordsAqueous suspension
Organic-chemistry
P-anisaldehyde
Aldehydes
Catalysts
Green route
Issue Date9-Mar-2009
PublisherRoyal Society of Chemistry (UK)
CitationPhotochemical and Photobiological Sciences
AbstractTiO2 catalysts of anatase, rutile and brookite phase were prepared at low temperature and tested for carrying out the photocatalytic partial oxidation of 4-methoxybenzyl alcohol to 4-methoxybenzaldehyde (p-anisaldehyde) in organic-free water suspensions. Traces of 4-methoxybenzoic acid and open-ring products were the only by-products present, CO2 being the other main oxidation product. Rutile exhibited the highest yield to p-anisaldehyde (62% mol) at a rate of the same order of magnitude of that showed by the other samples. Commercial rutile and anatase photocatalysts were also used for the sake of comparison. The samples have been characterised by an in situ ATR-FTIR investigation carried out in conditions simulating the photoreaction ones
Publisher version (URL)http://dx.doi.org/10.1039/b818353h
URIhttp://hdl.handle.net/10261/27431
DOI10.1039/b818353h
ISSN1474-905X
Appears in Collections:(ICP) Artículos
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