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Erschienen in:
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2011 | OriginalPaper | Buchkapitel

1. Introduction

verfasst von : Yoshihiko Ohama, Dionys Van Gemert

Erschienen in: Applications of Titanium Dioxide Photocatalysis to Construction Materials

Verlag: Springer Netherlands

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Abstract

A photocatalyst is a semiconducting substance which can be chemically activated by light radiation that results in oxidation-reduction (redox) reaction, i.e., it has a photocatalysis action or photoactivity. As illustrated in Fig. 1.1 [16, p. 147; 24, p. 10], photocatalysis is similar to the photosynthesis in plants in the mechanism, in which chlorophyl acts as a catalyst to produce oxygen from carbon dioxide and water. Chlorophyl is a very powerful photocatalyst. The photocatalyst in the photocatalysis process corresponds to the chlorophyl in the photosynthesis process.

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Metadaten
Titel
Introduction
verfasst von
Yoshihiko Ohama
Dionys Van Gemert
Copyright-Jahr
2011
Verlag
Springer Netherlands
DOI
https://doi.org/10.1007/978-94-007-1297-3_1