Communication
Highly Photoactive, Low Bandgap TiO2 Nanoparticles Wrapped by Graphene
Article first published online: 24 JAN 2012
DOI: 10.1002/adma.201104110
Copyright © 2012 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
Additional Information
How to Cite
Lee, J. S., You, K. H. and Park, C. B. (2012), Highly Photoactive, Low Bandgap TiO2 Nanoparticles Wrapped by Graphene. Adv. Mater., 24: 1084–1088. doi: 10.1002/adma.201104110
Publication History
- Issue published online: 14 FEB 2012
- Article first published online: 24 JAN 2012
- Manuscript Revised: 13 DEC 2011
- Manuscript Received: 26 OCT 2011

Highly photoactive, graphene-wrapped anatase TiO2 nanoparticles are synthesized through one-step hydrothermal reduction of graphene oxide (GO) and TiO2 crystallization from GO-wrapped amorphous TiO2 NPs. Graphene-TiO2 nanoparticles exhibit a red-shift of the band-edge and a significant reduction of the bandgap (2.80 eV). Graphene-TiO2 nanoparticles possess excellent photocatalytic properties under visible light for the degradation of methylene blue.

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