On the impact of Cu dispersion on CO2 photoreduction over Cu/TiO2

Dong Liu, Yolanda Fernandez, Oluwafunmilola Ola, Sarah Mackintosh, Mercedes Maroto-Valer, Christopher M. A. Parlett, Adam F. Lee, Jeffrey C. S. Wu

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73 Citations (Scopus)

Abstract

A family of Cu/TiO2 catalysts was prepared using a refined sol-gel method, and tested in the photocatalytic reduction of CO2 by H2O to CH4 using a stirred batch, annular reactor. The resulting photoactivity was benchmarked against pure TiO2 nanoparticles (synthesised by an identical sol-gel route). CO2 photoreduction exhibited a strong volcano dependence on Cu loading, reflecting the transition from 2-dimensional CuOx nanostructures to 3-dimensional crystallites, with optimum CH4 production observed for 0.03 wt.% Cu/TiO2. (C) 2012 Elsevier B.V. All rights reserved.

Original languageEnglish
Pages (from-to)78-82
Number of pages5
JournalCatalysis Communications
Volume25
DOIs
Publication statusPublished - 5 Aug 2012

Keywords

  • CATALYSTS
  • NUCLEATION
  • Methane
  • CO2
  • PHOTOCATALYTIC REDUCTION
  • Copper
  • CARBON-MONOXIDE
  • NANOPARTICLES
  • DIOXIDE
  • TIO2
  • Photocatalysis
  • ADSORPTION
  • Titania
  • PARTICLE-SIZE
  • IR SPECTROSCOPY

Cite this

Liu, D., Fernandez, Y., Ola, O., Mackintosh, S., Maroto-Valer, M., Parlett, C. M. A., Lee, A. F., & Wu, J. C. S. (2012). On the impact of Cu dispersion on CO2 photoreduction over Cu/TiO2. Catalysis Communications, 25, 78-82. https://doi.org/10.1016/j.catcom.2012.03.025