Overview on oxidation mechanisms of organic compounds by TiO 2 in heterogeneous photocatalysis

Vincenzo Augugliaro; Marianna Bellardita; Vittorio Loddo; Giovanni Palmisano; Leonardo Palmisano; Sedat Yurdakal

doi:10.1016/j.jphotochemrev.2012.04.003

Overview on oxidation mechanisms of organic compounds by TiO ₂ in heterogeneous photocatalysis

Vincenzo Augugliaro, Marianna Bellardita, Vittorio Loddo, Giovanni Palmisano, Leonardo Palmisano, Sedat Yurdakal

Chemical and Petroleum Engineering

Research output: Contribution to journal › Review article › peer-review

284 Scopus citations

Abstract

This review provides the reader with a general overview on heterogeneous photocatalytic oxidation mechanisms in the presence of TiO ₂, with a special address to conversion of aliphatic and aromatic organic species. The aim was to clarify the steps of the photo-oxidation of the various classes of compounds and to relate them with the properties of the catalysts and the experimental conditions used. Reactions carried out to perform complete degradation and photocatalytic partial oxidations have been deeply discussed. Recent isotopic studies highlighted new reaction pathways concerning partial oxidation of alcohols to aldehyde and oxidation of benzene while EPR investigations confirmed that not only the photogenerated hole but also the OH radicals are involved in the oxidation of the substrates.

Original language	British English
Pages (from-to)	224-245
Number of pages	22
Journal	Journal of Photochemistry and Photobiology C: Photochemistry Reviews
Volume	13
Issue number	3
DOIs	https://doi.org/10.1016/j.jphotochemrev.2012.04.003
State	Published - Sep 2012

Keywords

Organic reactions
Photocatalysis
Reaction mechanisms
TiO

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10.1016/j.jphotochemrev.2012.04.003

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title = "Overview on oxidation mechanisms of organic compounds by TiO 2 in heterogeneous photocatalysis",

abstract = "This review provides the reader with a general overview on heterogeneous photocatalytic oxidation mechanisms in the presence of TiO 2, with a special address to conversion of aliphatic and aromatic organic species. The aim was to clarify the steps of the photo-oxidation of the various classes of compounds and to relate them with the properties of the catalysts and the experimental conditions used. Reactions carried out to perform complete degradation and photocatalytic partial oxidations have been deeply discussed. Recent isotopic studies highlighted new reaction pathways concerning partial oxidation of alcohols to aldehyde and oxidation of benzene while EPR investigations confirmed that not only the photogenerated hole but also the OH radicals are involved in the oxidation of the substrates.",

keywords = "Organic reactions, Photocatalysis, Reaction mechanisms, TiO",

author = "Vincenzo Augugliaro and Marianna Bellardita and Vittorio Loddo and Giovanni Palmisano and Leonardo Palmisano and Sedat Yurdakal",

year = "2012",

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doi = "10.1016/j.jphotochemrev.2012.04.003",

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AU - Augugliaro, Vincenzo

AU - Bellardita, Marianna

AU - Loddo, Vittorio

AU - Palmisano, Giovanni

AU - Palmisano, Leonardo

AU - Yurdakal, Sedat

PY - 2012/9

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N2 - This review provides the reader with a general overview on heterogeneous photocatalytic oxidation mechanisms in the presence of TiO 2, with a special address to conversion of aliphatic and aromatic organic species. The aim was to clarify the steps of the photo-oxidation of the various classes of compounds and to relate them with the properties of the catalysts and the experimental conditions used. Reactions carried out to perform complete degradation and photocatalytic partial oxidations have been deeply discussed. Recent isotopic studies highlighted new reaction pathways concerning partial oxidation of alcohols to aldehyde and oxidation of benzene while EPR investigations confirmed that not only the photogenerated hole but also the OH radicals are involved in the oxidation of the substrates.

AB - This review provides the reader with a general overview on heterogeneous photocatalytic oxidation mechanisms in the presence of TiO 2, with a special address to conversion of aliphatic and aromatic organic species. The aim was to clarify the steps of the photo-oxidation of the various classes of compounds and to relate them with the properties of the catalysts and the experimental conditions used. Reactions carried out to perform complete degradation and photocatalytic partial oxidations have been deeply discussed. Recent isotopic studies highlighted new reaction pathways concerning partial oxidation of alcohols to aldehyde and oxidation of benzene while EPR investigations confirmed that not only the photogenerated hole but also the OH radicals are involved in the oxidation of the substrates.

KW - Organic reactions

KW - Photocatalysis

KW - Reaction mechanisms

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Overview on oxidation mechanisms of organic compounds by TiO ₂ in heterogeneous photocatalysis

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