title: [Synthesis of Cu2O-Ag-AgBr/MA visible photocatalyst and its performance in degradation of 2-chlorophenol].
abstract: Cu2O-Ag-AgBr/MA plasmon photocatalyst was prepared by the co-deposition of Cu2O and Ag-AgBr nanoparticles on mesoporous alumina (MA). The samples were characterized by means of X-ray diffraction (XRD) ,X-ray photoelectron spectroscopy (XPS) and diffuse reflectance UV-vis spectra (UV-vis DRS). The results showed that both Ag+ and Ag0 existed on the surface. The photocatalytic activity of the samples prepared were evaluated by degradation of 2-chlorophenol (2-CP) under visible light (λ >420 nm) irradiation. The results showed that the catalyst had high photocatalytic activity for the degradation of 2-CP. Meanwhile, the doping of Cu2O nanoparticles significantly inhibited the release of silver ions during the photocatalytic reaction, which improved the photostability of the catalyst. Analyses on the effects of various scavengers showed that h+ , O2- and OH radicals were the primary active species.
authors.forename: Ran
authors.initials: R
authors.lastname: Wang
authors.forename: Xue-feng
authors.initials: XF
authors.lastname: Zhou
authors.forename: Xue-xiang
authors.initials: XX
authors.lastname: Hu
authors.forename: Chun
authors.initials: C
authors.lastname: Hu
mesh_terms: D000537:Aluminum Oxide; D001965:Bromides; D002384:Catalysis; D002733:Chlorophenols / Q000737:chemistry*; D003300:Copper / Q000737:chemistry; D008027:Light; D053758:Nanoparticles / Q000737:chemistry; D056951:Photoelectron Spectroscopy; D012834:Silver; D014961:X-Ray Diffraction
chemical_list: D001965:Bromides; D002733:Chlorophenols; D012834:Silver; D003300:Copper; C030683:2-chlorophenol; D000537:Aluminum Oxide; C030973:cupric oxide