Jump to main content
Jump to site search

Issue 4, 2015
Previous Article Next Article

Photocatalytic reduction of CO2 over platinised Bi2WO6-based materials

Author affiliations

Abstract

The photocatalytic reduction of CO2 with H2O to produce CH4 in the gas phase was carried out in the presence of two Bi2WO6-based materials. For this purpose, single Bi2WO6 and a coupled Bi2WO6–TiO2 system were synthesised and metallised with Pt, through a Pt photodeposition method. Then, the samples were characterised and the photocatalytic activity was evaluated in a continuous fluidised-bed reactor irradiated with UV light. Single Bi2WO6 presents an interesting behaviour under H2O rich conditions. In particular, the metallisation improves the material's performance for CH4 formation, while the TiO2 addition to Bi2WO6 increases the CH4 yield only at low H2O/CO2 ratio. The Bi2WO6–TiO2 system metallised with a Pt photocatalyst displayed the highest CH4 yield among all the prepared photocatalysts. The stability of the system can be enhanced through the addition of a blue phosphor to the reactant mixture, especially under H2O rich conditions.

Graphical abstract: Photocatalytic reduction of CO2 over platinised Bi2WO6-based materials

Back to tab navigation

Supplementary files

Publication details

The article was received on 03 Nov 2014, accepted on 18 Dec 2014 and first published on 19 Dec 2014


Article type: Paper
DOI: 10.1039/C4PP00407H
Citation: Photochem. Photobiol. Sci., 2015,14, 678-685
  •   Request permissions

    Photocatalytic reduction of CO2 over platinised Bi2WO6-based materials

    S. Murcia-López, V. Vaiano, M. C. Hidalgo, J. A. Navío and D. Sannino, Photochem. Photobiol. Sci., 2015, 14, 678
    DOI: 10.1039/C4PP00407H

Search articles by author

Spotlight

Advertisements