Photocatalytic conversion of CO2 to hydrocarbons by light-harvesting complex assisted Rh-doped TiO2 photocatalyst

Lee, C.-W., Antoniou-Kourounioti, R. , Wu, J. C.S., Murchie, E., Maroto-Valer, M., Jensen, O., Huang, C. W. and Ruban, A. (2014) Photocatalytic conversion of CO2 to hydrocarbons by light-harvesting complex assisted Rh-doped TiO2 photocatalyst. Journal of CO2 Utilization, 5, pp. 33-40. (doi: 10.1016/j.jcou.2013.12.002)

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Abstract

Photocatalytic reduction of CO2 into valuable hydrocarbons using TiO2 is a promising route for mitigating the effects of global warming and meeting future energy demands. However, TiO2 utilises UV light for photocatalysis and its hydrocarbon yields are still low. In order to enhance the light absorption and increase yields, light-harvesting complexes (LHCII) extracted from spinach were attached to the surface of Rh-doped TiO2 (TiO2:Rh) resulting in a hybrid catalyst, TiO2:Rh-LHCII. The LHCII can absorb visible light in green plants, which convert CO2 to sugars via photosynthesis. CO, acetaldehyde and methyl formate were produced from aqueous CO2 solution in a stirred batch reactor under visible-light irradiation. The yields of acetaldehyde and methyl formate were enhanced by almost ten and four times respectively, when using TiO2:Rh-LHCII compared to those of TiO2:Rh.

Item Type:Articles
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:Antoniou Kourounioti, Dr Rea Laila
Authors: Lee, C.-W., Antoniou-Kourounioti, R., Wu, J. C.S., Murchie, E., Maroto-Valer, M., Jensen, O., Huang, C. W., and Ruban, A.
College/School:College of Medical Veterinary and Life Sciences > School of Molecular Biosciences
Journal Name:Journal of CO2 Utilization
Publisher:Elsevier
ISSN:2212-9820
ISSN (Online):2212-9820

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