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Proceedings Paper

Mesoporous TiO2/graphene composite films for the photocatalytic degradation of eco-persistent pollutants
Author(s): Yuly Kusumawati; Thierry Pauporté; Bruno Viana; Radek Zouzelka; Monika Remzova; Jiri Rathousky
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Paper Abstract

Graphene/oxide composite structures are attracting increasing attention for many advanced applications. In the present work, mesoporous layers composed of TiO2 nanoparticles and graphene at various concentrations have been coated on conductive glass substrates. They have been tested for the photocatalytic degradation of 4-chlorophenol used as a model compound of an eco-persistent pollutant dilute in water. The formation of intermediate degradation products, namely, hydroquinone and benzoquinone, has been followed. The results show the high photocatalytic activity of the layers and a beneficial effect of graphene for an optimum concentration of 1.2 wt. %. The decrease in the activity observed at higher graphene content is assigned to the light absorption by this component. The key parameters for the enhancement of the photocatalytic performance are discussed.

Paper Details

Date Published: 7 March 2017
PDF: 10 pages
Proc. SPIE 10105, Oxide-based Materials and Devices VIII, 1010529 (7 March 2017); doi: 10.1117/12.2253132
Show Author Affiliations
Yuly Kusumawati, Chimie ParisTech, PSL Research Univ., CNRS, Institut de Recherche de Chimie Paris (France)
Thierry Pauporté, Chimie ParisTech, PSL Research Univ., CNRS, Institut de Recherche de Chimie Paris (France)
Bruno Viana, Chimie ParisTech, PSL Research Univ., CNRS, Institut de Recherche de Chimie Paris (France)
Radek Zouzelka, J. Heyrovský Institute of Physical Chemistry of the ASCR, v.v.i. (Czech Republic)
Monika Remzova, J. Heyrovský Institute of Physical Chemistry of the ASCR, v.v.i. (Czech Republic)
Jiri Rathousky, J. Heyrovský Institute of Physical Chemistry of the ASCR, v.v.i. (Czech Republic)


Published in SPIE Proceedings Vol. 10105:
Oxide-based Materials and Devices VIII
Ferechteh H. Teherani; David C. Look; David J. Rogers, Editor(s)

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