Visible light promoted photocatalytic water oxidation: Effect of fluctuating light intensity upon reaction efficiency

Dominic Walsh*, Pascaline Patureau, Julia Walton, Jason Potticary, Simon R. Hall, Mark T. Weller

*Corresponding author for this work

Research output: Contribution to journalArticle (Academic Journal)

4 Citations (Scopus)
283 Downloads (Pure)

Abstract

Visible light promoted photocatalytic water oxidations were conducted with a synthesized iron oxide nanoparticulate catalyst together with a [Ru(bpy)3]2+ light harvesting dye and electron acceptor. With highest intensity set at daylight equivalent levels, the effects of fluctuating illumination upon ongoing reactions were studied and gaseous O2 and proton production measured. A light oscillation cycle was identified that significantly increased reaction TOF and quantum yields, which is suggested to arise from improvements in synchronization of the cyclic reaction steps and minimization of light sensitizer self-decomposition.

Original languageEnglish
Pages (from-to)97363-97366
Number of pages4
JournalRSC Advances
Volume6
Issue number99
DOIs
Publication statusPublished - 7 Oct 2016

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