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

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Abstract

TiO2catalysts 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 situATR-FTIR investigation carried out in conditions simulating the photoreaction ones.

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Authors and Affiliations

  1. “Schiavello-Grillone” Photocatalysis Group, Dipartimento di Ingegneria Chimica dei Processi e dei Materiali, Università degli Studi di Palermo, Viale delle Scienze, 90128, Palermo, Italy

    Vincenzo Augugliaro, Vittorio Loddo, Giovanni Palmisano, Leonardo Palmisano & Sedat Yurdakal

  2. Department of Chemical and Environmental Technology, ESCET, Rey Juan Carlos University, C/Tulipán s/n, 28933, Móstoles, Madrid, Spain

    María José López-Muñoz

  3. Instituto de Catálisis y Petroleoquímica, CSIC, C/Marie Curie 2, 28049, Cantoblanco, Madrid, Spain

    Carlos Márquez-Álvarez

  4. Kimya Bölümü, Fen Fakültesi, Anadolu Üniversitesi, Yunus Emre Kampüsü, 26470, Eskişehir, Turkey

    Sedat Yurdakal

Authors
  1. Vincenzo Augugliaro
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  2. Vittorio Loddo
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  3. María José López-Muñoz
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  4. Carlos Márquez-Álvarez
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  5. Giovanni Palmisano
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  6. Leonardo Palmisano
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  7. Sedat Yurdakal
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Corresponding authors

Correspondence to Vincenzo Augugliaro or Leonardo Palmisano.

Additional information

This paper was published as part of the themed issue of contributions from the 5th European Meeting on Solar Chemistry and Photocatalysis: Environmental Applications held in Palermo, Italy, October 2008.

Electronic supplementary information (ESI) available: SEM images and X-ray diffraction patterns of home-made and commercial TiO2catalysts. See DOI: 10.1039/b818353h

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Augugliaro, V., Loddo, V., López-Muñoz, M.J. et al. Home-prepared anatase, rutile, and brookite TiO2 for selective photocatalytic oxidation of 4-methoxybenzyl alcohol in water: reactivity and ATR-FTIR study. Photochem Photobiol Sci 8, 663–669 (2009). https://doi.org/10.1039/b818353h

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  • DOI: https://doi.org/10.1039/b818353h

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