Reduced Graphene Oxide as a Solid-State Electron Mediator in Z-Scheme Photocatalytic Water Splitting under Visible Light
Akihide Iwase (1272735)Yun Hau Ng (1272054)Yoshimi Ishiguro (2180686)Akihiko Kudo (193095)Rose Amal (1272732)
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<sub>2</sub>-evolving photocatalyst (BiVO<sub>4</sub>) to a H<sub>2</sub>-evolving photocatalyst (Ru/SrTiO<sub>3</sub>:Rh), tripling the consumption of electron–hole pairs in the water splitting reaction under visible-light irradiation.
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