title: Highly photoactive, low bandgap TiO2 nanoparticles wrapped by graphene.
abstract: 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.
authors.affiliation: Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology, 335 Science Road, Daejeon, Republic of Korea.
authors.forename: Joon Seok
authors.initials: JS
authors.lastname: Lee
authors.forename: Kyeong Hwan
authors.initials: KH
authors.lastname: You
authors.forename: Chan Beum
authors.initials: CB
authors.lastname: Park
mesh_terms: D002384:Catalysis; D006108:Graphite / Q000737:chemistry*; D008027:Light; D008958:Models, Molecular; D008968:Molecular Conformation; D053758:Nanoparticles / Q000737:chemistry*; D055668:Photochemical Processes; D014025:Titanium / Q000737:chemistry*
chemical_list: C009495:titanium dioxide; D006108:Graphite; D014025:Titanium