title: Bi2MoO6 microtubes: Controlled fabrication by using electrospun polyacrylonitrile microfibers as template and their enhanced visible light photocatalytic activity.
abstract: In this paper, Bi(2)MoO(6) microtubes (BMO-MTs) were obtained by a two-step fabrication route. By using the electrospun polyacrylonitrile (PAN) microfibers as structure-directing hard template and through ethylene glycol solvothermal method, polyacrylonitrile/Bi(2)MoO(6) (PAN/BMO) hybrid microfibers with core-shell structures were prepared. Through heat treatment of the as-prepared PAN/BMO to remove the PAN core, Bi(2)MoO(6) with tubes-structured were obtained. The thickness of BMO-MTs was controlled by changing the Bi(2)MoO(6) loading percentage of PAN/BMO which could be obtained through ethylene glycol solvothermal process with precursor different concentration for the preparation of Bi(2)MoO(6). And, the crystal structure and morphology of BMO-MTs strongly depended on the calcination temperature when heat-treating the as-prepared PAN/BMO. Photocatalytic tests show that the BMO-MTs possess a much higher degradation rate of Rhodamine B (RB) than that of Bi(2)MoO(6) prepared by solid-state reaction and conventional P25. The improved photocatalytic performance could be ascribed to the hollow multi channelled structure and large surface area. The BMO-MTs could be reclaimed easily by sedimentation from the photocatalytic reaction solution due to the large length to diameter ratio of one-dimensional tubes structures. Moreover, such simple and versatile strategy can provide a general way to fabricate other tubes structures of Bi(III)-containing oxides, such as Bi(2)WO(6) and BiVO(4) microtubes.
authors.affiliation: Center for Advanced Optoelectronic Functional Materials Research, Key Laboratory of UV Light-Emitting Materials and Technology of Ministry of Education, Northeast Normal University, 5268 Renmin Street, Changchun 130024, People's Republic of China.
authors.forename: Mingyi
authors.initials: M
authors.lastname: Zhang
authors.forename: Changlu
authors.initials: C
authors.lastname: Shao
authors.forename: Peng
authors.initials: P
authors.lastname: Zhang
authors.forename: Chunyan
authors.initials: C
authors.lastname: Su
authors.forename: Xin
authors.initials: X
authors.lastname: Zhang
authors.forename: Pingping
authors.initials: P
authors.lastname: Liang
authors.forename: Yangyang
authors.initials: Y
authors.lastname: Sun
authors.forename: Yichun
authors.initials: Y
authors.lastname: Liu
mesh_terms: D000180:Acrylic Resins / Q000737:chemistry*; D001729:Bismuth / Q000737:chemistry*; D002384:Catalysis; D005456:Fluorescent Dyes / Q000737:chemistry / Q000528:radiation effects; D008027:Light; D008855:Microscopy, Electron, Scanning; D008982:Molybdenum / Q000737:chemistry*; D010087:Oxides / Q000737:chemistry*; D010782:Photolysis; D012235:Rhodamines / Q000737:chemistry* / Q000528:radiation effects*; D017550:Spectroscopy, Fourier Transform Infrared; D014961:X-Ray Diffraction
chemical_list: D000180:Acrylic Resins; D005456:Fluorescent Dyes; D010087:Oxides; D012235:Rhodamines; C010504:polyacrylonitrile; D008982:Molybdenum; C029773:rhodamine B; D001729:Bismuth