Jump to main content
Jump to site search

Issue 26, 2017
Previous Article Next Article

A visible-light active TiO2 photocatalyst multilayered with WO3

Author affiliations

Abstract

Sputter-deposited TiO2 films with high visible-light photocatalytic activity were successfully realized by a hybrid TiO2/Pt/WO3 film structure with Pt nanoparticles uniformly distributed at the interface of the TiO2 and WO3 films. The TiO2/Pt/WO3 hybrid films enable the complete decomposition of CH3CHO under visible-light irradiation. The water contact angle of the TiO2/Pt/WO3 hybrid films reaches below 5° under visible-light irradiation. Pt nanoparticles are considered to act as a cocatalyst to improve the electron–hole separation efficiency. We demonstrate that the photogenerated holes in WO3 are transferred to the surface of the TiO2 film with less hole-trapping and induce high visible-light photocatalytic activity and hydrophilic behavior, and the photogenerated electrons are accumulated in the Pt nanoparticles. The highly hydrophilic thin films with high visible-light photocatalytic activity can be applied to various indoor products possessing self-cleaning and antifogging properties.

Graphical abstract: A visible-light active TiO2 photocatalyst multilayered with WO3

Back to tab navigation

Publication details

The article was received on 17 May 2017, accepted on 12 Jun 2017 and first published on 12 Jun 2017


Article type: Paper
DOI: 10.1039/C7CP03291A
Citation: Phys. Chem. Chem. Phys., 2017,19, 17342-17348
  •   Request permissions

    A visible-light active TiO2 photocatalyst multilayered with WO3

    J. Jia, K. Taniyama, M. Imura, T. Kanai and Y. Shigesato, Phys. Chem. Chem. Phys., 2017, 19, 17342
    DOI: 10.1039/C7CP03291A

Search articles by author

Spotlight

Advertisements