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.
Bibliographical note© 2012 Elsevier B.V. Open Access under CC-BY license.
Liu, D., Fernández, 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