Formal quantum efficiencies for the photocatalytic reduction of CO2 in a gas phase batch reactor

dc.check.date2020-10-23
dc.check.infoAccess to this article is restricted until 24 months after publication by request of the publisher.en
dc.contributor.authorCortes, Maria Ana L. R. M.
dc.contributor.authorHamilton, J. W. J.
dc.contributor.authorSharma, P. K.
dc.contributor.authorBrown, A.
dc.contributor.authorNolan, Michael
dc.contributor.authorGray, K. A.
dc.contributor.authorByrne, J. Anthony
dc.contributor.funderNational Science Foundationen
dc.contributor.funderScience Foundation Irelanden
dc.contributor.funderDepartment for Educationen
dc.contributor.funderBritish Councilen
dc.date.accessioned2018-11-27T09:58:17Z
dc.date.available2018-11-27T09:58:17Z
dc.date.issued2018-10-23
dc.date.updated2018-11-27T09:45:38Z
dc.description.abstractThe photocatalytic reduction of CO2 to fuels, or useful products, is an area of active research. In this work, nanoengineering and surface modification of titania were investigated as approaches for improving the CO2 reduction efficiency in a fixed-bed gas phase batch photoreactor under UV–vis irradiation. Titania nanotubes were prepared by a hydrothermal method, and TiO2 (P25) was surface modified with copper clusters. Unmodified TiO2 (P25) was used as the bench-mark comparison. The titania nanotubes and Cu-TiO2 materials showed higher efficiency for the photocatalytic reduction of CO2 to yield CH4 as compared to P25. Carbon monoxide yields were similar for all photocatalysts tested. The photocatalytic reduction of CO2 was observed on all photocatalyst tested, with the nanotubes proving to be the most efficient for the production of CH4. The product yields per mass of catalyst observed in this work are similar to those reported in the literature (with similar reactor parameters) but the calculated formal quantum efficiencies for CO2 reduction are very low (4.41 × 10−5 to 5.95 × 10-4).en
dc.description.sponsorshipNational Science Foundation (US-Ireland R&D Collaborative Partnership Program NSF (CBET-1438721)); Department for Education (USI065); British Council (STREAM-MENA Institutional Links Scheme (Grant Number 278072873))en
dc.description.statusPeer revieweden
dc.description.versionAccepted Versionen
dc.format.mimetypeapplication/pdfen
dc.identifier.citationCortes, M. A. L. R. M., Hamilton, J. W. J., Sharma, P. K., Brown, A., Nolan, M., Gray, K. A. and Byrne, J. A. (2018) 'Formal quantum efficiencies for the photocatalytic reduction of CO2 in a gas phase batch reactor', Catalysis Today. doi:10.1016/j.cattod.2018.10.047en
dc.identifier.doi10.1016/j.cattod.2018.10.047
dc.identifier.issn0920-5861
dc.identifier.journaltitleCatalysis Todayen
dc.identifier.urihttps://hdl.handle.net/10468/7148
dc.language.isoenen
dc.publisherElsevier B.V.en
dc.relation.projectinfo:eu-repo/grantAgreement/SFI/SFI US Ireland R&D Partnership/14/US/E2915/IE/SusChEM: Using theory-driven design to tailor novel nanocomposite oxides for solar fuel production/en
dc.rights© 2018, Elsevier B.V. All rights reserved. This manuscript version is made available under the CC-BY-NC-ND 4.0 license.en
dc.rights.urihttps://creativecommons.org/licenses/by-nc-nd/4.0/en
dc.subjectCO2 photoreductionen
dc.subjectTitanium dioxideen
dc.subjectMechanismen
dc.subjectQuantum efficiencyen
dc.titleFormal quantum efficiencies for the photocatalytic reduction of CO2 in a gas phase batch reactoren
dc.typeArticle (peer-reviewed)en
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