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

Chien Wei Lee; Rea Antoniou Kourounioti; Jeffrey C S Wu; Erik Murchie; M Mercedes Maroto-Valer; Oliver E. Jensen; Chao Wei Huang; Alexander Ruban

doi:10.1016/j.jcou.2013.12.002

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

Chien Wei Lee, Rea Antoniou Kourounioti, Jeffrey C S Wu^*, Erik Murchie, M Mercedes Maroto-Valer, Oliver E. Jensen, Chao Wei Huang, Alexander Ruban

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

55 Citations (Scopus)

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 TiO ₂ (TiO₂:Rh) resulting in a hybrid catalyst, TiO ₂: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.

Original language	English
Pages (from-to)	33-40
Number of pages	8
Journal	Journal of CO2 Utilization
Volume	5
DOIs	https://doi.org/10.1016/j.jcou.2013.12.002
Publication status	Published - 1 Mar 2014

Keywords

CO
Light-harvesting complex
Photocatalysis
Solar energy
TiO:Rh

ASJC Scopus subject areas

Chemical Engineering (miscellaneous)
Process Chemistry and Technology
Waste Management and Disposal

Access to Document

10.1016/j.jcou.2013.12.002

Cite this

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

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 TiO 2 (TiO2:Rh) resulting in a hybrid catalyst, TiO 2: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.",

keywords = "CO, Light-harvesting complex, Photocatalysis, Solar energy, TiO:Rh",

author = "Lee, {Chien Wei} and {Antoniou Kourounioti}, Rea and Wu, {Jeffrey C S} and Erik Murchie and Maroto-Valer, {M Mercedes} and Jensen, {Oliver E.} and Huang, {Chao Wei} and Alexander Ruban",

year = "2014",

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doi = "10.1016/j.jcou.2013.12.002",

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T1 - Photocatalytic conversion of CO2 to hydrocarbons by light-harvesting complex assisted Rh-doped TiO2 photocatalyst

AU - Lee, Chien Wei

AU - Antoniou Kourounioti, Rea

AU - Wu, Jeffrey C S

AU - Murchie, Erik

AU - Maroto-Valer, M Mercedes

AU - Jensen, Oliver E.

AU - Huang, Chao Wei

AU - Ruban, Alexander

PY - 2014/3/1

Y1 - 2014/3/1

N2 - 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 TiO 2 (TiO2:Rh) resulting in a hybrid catalyst, TiO 2: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.

AB - 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 TiO 2 (TiO2:Rh) resulting in a hybrid catalyst, TiO 2: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.

KW - CO

KW - Light-harvesting complex

KW - Photocatalysis

KW - Solar energy

KW - TiO:Rh

U2 - 10.1016/j.jcou.2013.12.002

DO - 10.1016/j.jcou.2013.12.002

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JO - Journal of CO2 Utilization

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