Mesoporous TiO2/graphene composite films for the photocatalytic degradation of eco-persistent pollutants

Yuly Kusumawati, Thierry Pauporté, Bruno Viana, Radek Zouzelka, Monika Remzova, Jiri Rathousky

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

4 Citations (Scopus)

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.

Original languageEnglish
Title of host publicationOxide-Based Materials and Devices VIII 2017
EditorsFerechteh H. Teherani, David C. Look, David J. Rogers, Ivan Bozovic
PublisherSPIE
ISBN (Electronic)9781510606517
DOIs
Publication statusPublished - 2017
Externally publishedYes
EventOxide-Based Materials and Devices VIII 2017 - San Francisco, United States
Duration: 29 Jan 20171 Feb 2017

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume10105
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X

Conference

ConferenceOxide-Based Materials and Devices VIII 2017
Country/TerritoryUnited States
CitySan Francisco
Period29/01/171/02/17

Keywords

  • 4-Chlorophenol
  • Graphene
  • HPLC
  • Nanocomposite
  • Photocatalysis
  • TiO

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