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Reducing Graphene Oxide on a Visible-Light BiVO4 Photocatalyst for an Enhanced Photoelectrochemical Water Splitting
Abstract
Bismuth vanadate (BiVO 4 ) is incorporated with reduced graphene oxide (RGO) using a facile single-step photocatalytic reaction to improve its photoresponse in visible light. Remarkable 10-fold enhancement in photoelectrochemical water splitting reaction is observed on BiVO 4 −RGO composite compared with pure BiVO 4 under visible illumination. This improvement is attributed to the longer electron lifetime of excited BiVO 4 as the electrons are injected to RGO instantly at the site of generation, leading to a minimized charge recombination. Improved contact between BiVO 4 particles with transparent conducting electrode using RGO scaffold also contributes to this photoresponse enhancement.
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Metadata
- Authors
- Ng, Y. H., Iwase, A., Kudo, A., & Amal, R.
- Venue
- The Journal of Physical Chemistry Letters
- Publisher
- American Chemical Society (ACS)
- Published
- 2010-08-17
- Volume
- 1
- Issue
- 17
- Pages
- 2607-2612
- ISSN
- 1948-7185 (ISSN-L)
- OpenAlex
- W2050785814
- Cited by
- 869
- References
- 32
- FWCI
- 31.73
- Type
- journal article
- Language
- en
- Open access
- closed
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