Highly Photoactive, Low Bandgap TiO2 Nanoparticles Wrapped by Graphene

作者：Joonseok Lee, Kyeong Hwan You, Chan Beum Park · 发表于：Advanced Materials · 年份：2012 · DOI：10.1002/adma.201104110 · 被引用次数：902 · 研究领域：Advanced Photocatalysis Techniques、Graphene research and applications、TiO2 Photocatalysis and Solar Cells

Highly photoactive, graphene-wrapped anatase TiO(2) nanoparticles are synthesized through one-step hydrothermal reduction of graphene oxide (GO) and TiO(2) crystallization from GO-wrapped amorphous TiO(2) NPs. Graphene-TiO(2) nanoparticles exhibit a red-shift of the band-edge and a significant reduction of the bandgap (2.80 eV). Graphene-TiO(2) nanoparticles possess excellent photocatalytic properties under visible light for the degradation of methylene blue.