Article

Catalysis Letters

, 128:36

First online:

TiO2 Nanoparticles with High Photocatalytic Activity Under Visible Light

  • Magdalena JanusAffiliated withSzczecin University of Technology, Institute of Chemical and Environment Engineering, ul Email author 
  • , Beata TrybaAffiliated withSzczecin University of Technology, Institute of Chemical and Environment Engineering, ul
  • , Ewelina KusiakAffiliated withSzczecin University of Technology, Institute of Chemical and Environment Engineering, ul
  • , Tomoki TsumuraAffiliated withFaculty of Engineering, Oita University
  • , Masahiro ToyodaAffiliated withFaculty of Engineering, Oita University
  • , Michio InagakiAffiliated withFaculty of Engineering, Aichi Institute of Technology
  • , Antoni W. MorawskiAffiliated withSzczecin University of Technology, Institute of Chemical and Environment Engineering, ul

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Abstract

TiO2 nanoparticles (C-TNT) with high visible light activity were obtained by carbonization of titania nanotubes (TNT) in an ethanol atmosphere under elevated pressure at 180 and 220 °C. New material was characterised by means of UV–Vis/DR, FTIR/DRS, TEM, and XRD. The photocatalytic activity was tested during monoazo dye decomposition under artificial solar light irradiation. Modified photocatalyst (220 °C, 4 h) had higher photocatalytic activity than both the pristine and commercial P25 catalysts.

Keywords

Titania nanotubes Dye decomposition Elevated pressure