Copper based TiO2 honeycomb monoliths for CO2 photoreduction

Oluwafunmilola Opeyemi Ola, M Mercedes Maroto-Valer

Research output: Contribution to journalArticle

39 Citations (Scopus)

Abstract

The direct photoreduction of CO2via catalytic conversion of copper supported on TiO2 based monolithic structures is a means by which solar fuels can be produced. Copper based monolithic structures with varying loadings were synthesized through a sol-gel dip coating procedure and tested for CO2 reduction with H2O as a reductant in the gaseous phase. Results established that increased copper concentration can decrease crystalline size and promote anatase to rutile phase transformation. The coated monolithic structures were dominated by mainly Cu1+ species, as confirmed by XPS while bulk characterization suggests that these species are present in the crystal lattice via substitution of Ti4+ ions with Cu1+ ions. The catalytic performance of the Cu doped TiO2 monoliths for hydrocarbon formation was found to be considerably higher when compared to pure TiO2 under UVA or visible light irradiation.
Original languageEnglish
Pages (from-to)1631-1637
Number of pages7
JournalCatalysis Science and Technology
Volume4
Issue number6
Early online date21 Feb 2014
DOIs
Publication statusPublished - Jun 2014

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