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Porous S-doped bismuth vanadate with an olive-like morphology and its supported iron oxide(y wt.% FeOx/BiVO4 δS0.08, y =0.06, 0.76, and 1.40) photocatalysts were fabricated using the dodecylamine-assisted alcohol-hydrothermal and incipient wetness impregnation methods, respectively. It is shown that the y wt.% FeOx/BiVO4 δS0.08photocatalysts contained a monoclinic scheetlite BiVO4 phase with a porous olive-like morphology, a surface area of 8.8–9.2 m2/g, and a bandgap energy of 2.38–2.42 eV. There was co-presence of surface Bi5+, Bi3+, V5+, V3+, Fe3+, and Fe2+species in y wt.% FeOx/BiVO4 δS0.08. The 1.40 wt.% FeOx/BiVO4 δS0.08sample performed the best for Methylene Blue degradation under visible-light illumination. The photocatalytic mechanism was also discussed. We believe that the sulfur and FeOx co-doping, higher oxygen adspecies concentration, and lower bandgap energy were responsible for the excellent visible-light-driven catalytic activity of 1.40 wt.% FeOx/BiVO4 δS0.08.
Porous S-doped bismuth vanadate with an olive-like morphology and its supported iron oxide (y wt.% FeOx / BiVO4 δ S 0.08, y = 0.06, 0.76, and 1.40) photocatalysts were fabricated using the dodecylamine-assisted alcohol-hydrothermal and Incipient wetness impregnation methods, respectively. It is shown that the y wt.% FeOx / BiVO4 δS0.08photocatalysts contained a monoclinic scheetlite BiVO4 phase with a porous olive-like morphology, a surface area of 8.8-9.2 m2 / g, and a bandgap energy of 2.38-2.42 eV. There was co-presence of surface Bi5 +, Bi3 +, V5 +, V3 +, Fe3 +, and Fe2 + species in y wt.% FeOx / BiVO4 δS0.08. The 1.40 wt.% FeOx / BiVO4 δS0. We believe that the sulfur and FeOx co-doping, higher oxygen adspecies concentration, and lower bandgap energy were responsible for the excellent visible-light- driven catalytic activity of 1.40 wt.% FeOx / BiVO4 δS 0.08.