title: Visible light-induced photocatalytic activity of Bi2O3 prepared via microwave-assisted method.
abstract: Bi2O3 was successfully synthesized via microwave-assisted reaction of Bi2O3 precursor in aqueous solution using a microwave system. Their morphologies, structures and photocatalytic performances in the degradation of methylene blue (MB) were characterized by scanning electron microscopy, transmission electron microscopy, energy dispersive X-ray spectroscopy, X-ray diffraction spectroscopy, photoluminescence spectroscopy and UV-vis absorption spectroscopy, respectively. The results show that Bi2O3 synthesized at pH value of 7 exhibits an optimal photocatalytic performance with the MB degradation rate of 76% at 240 min under visible light irradiation due to its higher visible light absorption and comparatively low electron-hole pair recombination.
authors.affiliation: Engineering Research Center for Nanophotonics and Advanced Instrument, Department of Physics, Ministry of Education, 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: Jinliang
authors.initials: J
authors.lastname: Li
authors.forename: Kai
authors.initials: K
authors.lastname: Yu
authors.forename: Zhuo
authors.initials: Z
authors.lastname: Sun
mesh_terms: D001729:Bismuth / Q000737:chemistry* / Q000528:radiation effects*; D002384:Catalysis; D008027:Light; D008422:Materials Testing; D008872:Microwaves; D049329:Nanostructures / Q000737:chemistry* / Q000528:radiation effects* / Q000648:ultrastructure; D010316:Particle Size; D010777:Photochemistry / Q000379:methods
chemical_list: C033301:bismuth oxide; D001729:Bismuth