Reduced graphene oxide as a solid-state electron mediator in Z-scheme photocatalytic water splitting under visible light

Akihide Iwase; Yun Hau Ng; Yoshimi Ishiguro; Akihiko Kudo; Rose Amal

doi:10.1021/ja203296z

Reduced graphene oxide as a solid-state electron mediator in Z-scheme photocatalytic water splitting under visible light

J Am Chem Soc. 2011 Jul 27;133(29):11054-7. doi: 10.1021/ja203296z. Epub 2011 Jul 6.

Authors

Akihide Iwase¹, Yun Hau Ng, Yoshimi Ishiguro, Akihiko Kudo, Rose Amal

Affiliation

¹ ARC Centre of Excellence for Functional Nanomaterials, School of Chemical Engineering, The University of New South Wales, Sydney, NSW 2052, Australia.

PMID: 21711031
DOI: 10.1021/ja203296z

Abstract

The effectiveness of reduced graphene oxide as a solid electron mediator for water splitting in the Z-scheme photocatalysis system is demonstrated. We show that a tailor-made, photoreduced graphene oxide can shuttle photogenerated electrons from an O(2)-evolving photocatalyst (BiVO(4)) to a H(2)-evolving photocatalyst (Ru/SrTiO(3):Rh), tripling the consumption of electron-hole pairs in the water splitting reaction under visible-light irradiation.