Increasing of electron-hole separation is crucial to the improvement in the activity of photocatalyst. Photosynthesis involving the Z-scheme mechanism provides a unique process to utilize the solar energy through effective electron hole pair separation. The effectiveness of graphene as an electron mediator for water splitting in the Z-scheme photocatalysis system is demonstrated. We show that graphene can shuttle photogenerated electrons from the TaON to CdS, hindering the rapid recombination of electron hole pairs and enhancing photocatalytic activities in the water splitting reaction under visible-light irradiation.
|Title of host publication||TMS 2013 142nd Annual Meeting and Exhibition, Annual Meeting|
|Number of pages||7|
|Publication status||Published - 2013 Jan 1|
- Visible light
ASJC Scopus subject areas
- Materials Science(all)