Copper based TiO2 honeycomb monoliths for CO2 photoreduction

Ola, Oluwafunmilola; Mercedes Maroto-Valer, M.

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.

Citation

Ola, O., & Mercedes Maroto-Valer, M. (2014). Copper based TiO2 honeycomb monoliths for CO2 photoreduction. Catalysis Science and Technology, 4(6), 1631-1637. https://doi.org/10.1039/c3cy00991b

• Journal Article Type: Article
• Acceptance Date: Feb 21, 2014
• Online Publication Date: Feb 21, 2014
• Publication Date: Jun 1, 2014
• Deposit Date: May 4, 2020
• Publicly Available Date: May 4, 2020
• Journal: Catalysis Science and Technology
• Print ISSN: 2044-4753
• Electronic ISSN: 2044-4761
• Publisher: Royal Society of Chemistry
• Peer Reviewed: Peer Reviewed
• Volume: 4
• Issue: 6
• Pages: 1631-1637
• DOI: https://doi.org/10.1039/c3cy00991b
• Public URL: https://nottingham-repository.worktribe.com/output/4380559
• Publisher URL: https://pubs.rsc.org/en/content/articlelanding/2014/CY/C3CY00991B#!divAbstract
• Additional Information: : This document is CrossCheck deposited; : The Royal Society of Chemistry has an exclusive publication licence for this journal; OPEN ACCESS: The accepted version of this article will be made freely available after a 12 month embargo period; : Received 29 November 2013; Accepted 21 February 2014; Accepted Manuscript published 21 February 2014; Advance Article published 27 March 2014; Version of Record published 13 May 2014