TiO2 photocatalysis for the degradation of pollutants in gas phase: From morphological design to plasmonic enhancement

•A broad overview is given of TiO2-based photocatalysis for gas phase applications.•The importance of photocatalysis for the remediation of air pollution is stressed.•Different possible photocatalyst architectures are discussed.•Electronic photocatalyst modifications are treated with a focus on plas...

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Published inJournal of photochemistry and photobiology. C, Photochemistry reviews Vol. 24; pp. 64 - 82
Main Author Verbruggen, Sammy W.
Format Journal Article
LanguageEnglish
Published Elsevier B.V 01.09.2015
Subjects
Gas phase
Modification
Morphology
Photocatalysis
Plasmon
Titanium dioxide
Modification
Gas phase
Plasmon
Titanium dioxide
Photocatalysis
Morphology
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Summary:•A broad overview is given of TiO2-based photocatalysis for gas phase applications.•The importance of photocatalysis for the remediation of air pollution is stressed.•Different possible photocatalyst architectures are discussed.•Electronic photocatalyst modifications are treated with a focus on plasmonics.•Recent trends and opportunities to the field are emphasized. TiO2-based photocatalysis has become a viable technology in various application fields such as (waste)water purification, photovoltaics/artificial photosynthesis, environmentally friendly organic synthesis and remediation of air pollution. Because of the increasing impact of bad air quality worldwide, this review focuses on the use and optimization of TiO2-based photocatalysts for gas phase applications. Over the past years various specific aspects of TiO2 photocatalysis have been reviewed individually. The intent of this review is to offer a broad tutorial on (recent) trends in TiO2 photocatalyst modification for the intensification of photocatalytic air treatment. After briefly introducing the fundamentals of photocatalysis, TiO2 photocatalyst modification is discussed both on a morphological and an electronic level from the perspective of gas phase applications. The main focus is laid on recent developments, but also possible opportunities to the field. This review is intended as a solid introduction for researchers new to the field, as well as a summarizing update for established investigators.
ISSN:1389-5567
1873-2739
DOI:10.1016/j.jphotochemrev.2015.07.001