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

被引：58
作者：
Augugliaro, Vincenzo [1 ]
Loddo, Vittorio [1 ]
Jose Lopez-Munoz, Maria [2 ]
Marquez-Alvarez, Carlos [3 ]
Palmisano, Giovanni [1 ]
Palmisano, Leonardo [1 ]
Yurdakal, Sedat [1 ,4 ]
机构：
[1] Univ Palermo, Dipartimento Ingn Chim Proc & Mat, Schiavello Grillone Photocatalysis Grp, I-90128 Palermo, Italy
[2] Rey Juan Carlos Univ, ESCET, Dept Chem & Environm Technol, Madrid 28933, Spain
[3] CSIC, Inst Catalisis & Petroleoquim, E-28049 Madrid, Spain
[4] Anadolu Univ, Fen Fak, Kimya Bolumu, TR-26470 Eskisehir, Turkey
来源：
PHOTOCHEMICAL & PHOTOBIOLOGICAL SCIENCES | 2009年 / 8卷 / 05期
关键词：
AQUEOUS SUSPENSION; AROMATIC-COMPOUNDS; ALDEHYDES; GREEN; ROUTE;
D O I：
10.1039/b818353h
中图分类号：
Q5 [生物化学]; Q7 [分子生物学];
学科分类号：
071010 ; 081704 ;
摘要：
TiO2 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.
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收藏
页码：663 / 669
页数：7
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