title: Investigation of photocatalytic activities over ZnO-TiO2-reduced graphene oxide composites synthesized via microwave-assisted reaction.
abstract: ZnO-TiO(2)-reduced graphene oxide (RGO) composites were successfully synthesized by microwave-assisted reduction of graphite oxide in ZnO precursor solution with TiO(2) suspension using a microwave synthesis system. Their morphology, structure, and photocatalytic performance in the reduction of Cr(VI) were characterized by scanning electron microscopy, X-ray diffraction spectroscopy, and UV-vis absorption spectrophotometer. The results show that ZnO-TiO(2)-RGO composites exhibit an enhanced photocatalytic performance in reduction of Cr(VI) with a maximum removal rate of 99.4% under UV light irradiation as compared with pure ZnO (58%) and ZnO-RGO (98%) composites due to the increased light absorption intensity and the reduction of electron-hole pair recombination in ZnO with the introduction of TiO(2).
authors.affiliation: Engineering Research Center for Nanophotonics & Advanced Instrument, Ministry of Education, Department of Physics, East China Normal University, Shanghai 200062, China.
authors.forename: Xinjuan
authors.initials: X
authors.lastname: Liu
authors.forename: Likun
authors.initials: L
authors.lastname: Pan
authors.forename: Tian
authors.initials: T
authors.lastname: Lv
authors.forename: Zhuo
authors.initials: Z
authors.lastname: Sun