title: Novel Bi(2)WO(6)-TiO(2) heterostructures for Rhodamine B degradation under sunlike irradiation.
abstract: Highly efficient Bi(2)WO(6)-TiO(2) heterostructure is synthesized by means of a hydrothermal method having highly photoactivity for the degradation of Rhodamine B under sunlike irradiation. From the structural characterization it has been demonstrated that TiO(2) is incorporated on the Aurivillius structure. Interesting synergetic effect between TiO(2) and Bi(2)WO(6) leads to an improved charge carrier separation mechanism, causing the excellent photocatalytic performance under sunlike irradiation. The photocatalytic performance of Bi(2)WO(6) and Bi(2)WO(6)-TiO(2) was compared under different irradiation conditions and using increasing Rhodamine B concentration up to 25 ppm. After the photocatalytic analysis of both systems, the mineralization efficiency of the heterostructure appears significantly higher with respect to Bi(2)WO(6).
authors.affiliation: Instituto de Ciencia de Materiales de Sevilla, Centro Mixto Universidad de Sevilla-CSIC, 41092 Sevilla, Spain.
authors.forename: S
authors.initials: S
authors.lastname: Murcia López
authors.forename: M C
authors.initials: MC
authors.lastname: Hidalgo
authors.forename: J A
authors.initials: JA
authors.lastname: Navío
authors.forename: G
authors.initials: G
authors.lastname: Colón
mesh_terms: D001729:Bismuth / Q000737:chemistry*; D008855:Microscopy, Electron, Scanning; D010087:Oxides / Q000737:chemistry*; D012235:Rhodamines / Q000737:chemistry*; D013059:Spectrum Analysis, Raman; D013472:Sunlight; D014025:Titanium / Q000737:chemistry*; D014414:Tungsten / Q000737:chemistry*; D014961:X-Ray Diffraction
chemical_list: D010087:Oxides; D012235:Rhodamines; C009495:titanium dioxide; C511604:tungsten oxide; D014025:Titanium; C029773:rhodamine B; D001729:Bismuth; D014414:Tungsten