title: BiVO(4)/CeO(2) nanocomposites with high visible-light-induced photocatalytic activity.
abstract: Preparation of bismuth vanadate and cerium dioxide (BiVO4/CeO2) nanocomposites as visible-light photocatalysts was successfully obtained by coupling a homogeneous precipitation method with hydrothermal techniques. The BiVO4/CeO2 nanocomposites with different mole ratios were synthesized and characterized by X-ray diffraction (XRD), Raman spectroscopy, and transmission electron microscopy (TEM). Absorption range and band gap energy, which are responsible for the observed photocatalyst behavior, were investigated by UV-vis diffuse reflectance (UV-vis DR) spectroscopy. Photocatalytic activities of the prepared samples were examined by studying the degradation of model dyes Methylene Blue, Methyl Orange, and a mixture of Methylene Blue and Methyl Orange solutions under visible-light irradiation (>400 nm). Results clearly show that the BiVO4/CeO2 nanocomposite in a 0.6:0.4 mol ratio exhibited the highest photocatalytic activity in dye wastewater treatment.
authors: Department of Physics and Materials Science, ‡Materials Science Research Centre, and §Department of Chemistry, Faculty of Science, Chiang Mai University , Chiang Mai 50200, Thailand.
authors: Natda
authors: N
authors: Wetchakun
authors: Saranyoo
authors: S
authors: Chaiwichain
authors: Burapat
authors: B
authors: Inceesungvorn
authors: Kanlaya
authors: K
authors: Pingmuang
authors: Sukon
authors: S
authors: Phanichphant
authors: Andrew I
authors: AI
authors: Minett
authors: Jun
authors: J
authors: Chen
mesh_terms: D001391:Azo Compounds / Q000737:chemistry; D001729:Bismuth / Q000737:chemistry*; D002384:Catalysis; D002563:Cerium / Q000737:chemistry*; D004396:Coloring Agents / Q000737:chemistry; D052918:Environmental Restoration and Remediation / Q000295:instrumentation / Q000379:methods; D006801:Humans; D008027:Light; D008751:Methylene Blue / Q000737:chemistry; D053761:Nanocomposites / Q000737:chemistry*; D010782:Photolysis; D014638:Vanadates / Q000737:chemistry*; D062065:Wastewater / Q000737:chemistry
chemical_list: D001391:Azo Compounds; D001729:Bismuth; D002563:Cerium; D004396:Coloring Agents; D008751:Methylene Blue; D014638:Vanadates; D062065:Wastewater; C091754:bismuth vanadium tetraoxide; C030583:ceric oxide; C100258:methyl orange