title: Electrospun nanofibers of Bi-doped TiO2 with high photocatalytic activity under visible light irradiation.
abstract: Bi-doped TiO(2) nanofibers with different Bi content were firstly prepared by an electrospinning method. The as-prepared nanofibers were characterized by scanning electron microscopy (SEM), X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), photoluminescence spectra (PL), and UV-vis diffuse reflectance spectroscopy (DRS). The results indicated that Bi(3+) ions were successfully incorporated into TiO(2) and extended the absorption of TiO(2) into visible light region. The photocatalytic experiments showed that Bi-doped TiO(2) nanofibers exhibited higher activities than sole TiO(2) in the degradation of rhodamine B (RhB) and phenol under visible light irradiation (λ>420 nm), and 3% Bi:TiO(2) samples showed the highest photocatalytic activities.
authors.affiliation: State Key Laboratory of High Performance Ceramics and Superfine Microstructures, Shanghai Institute of Ceramics, Chinese Academy of Sciences, 1295 Dingxi Road, Shanghai 200050, China.
authors.forename: Jie
authors.initials: J
authors.lastname: Xu
authors.forename: Wenzhong
authors.initials: W
authors.lastname: Wang
authors.forename: Meng
authors.initials: M
authors.lastname: Shang
authors.forename: Erping
authors.initials: E
authors.lastname: Gao
authors.forename: Zhijie
authors.initials: Z
authors.lastname: Zhang
authors.forename: Jia
authors.initials: J
authors.lastname: Ren
mesh_terms: D001729:Bismuth / Q000737:chemistry*; D002384:Catalysis; D004735:Energy Transfer; D008027:Light; D008855:Microscopy, Electron, Scanning; D057139:Nanofibers / Q000737:chemistry*; D019800:Phenol / Q000302:isolation & purification / Q000528:radiation effects; D055668:Photochemical Processes; D056951:Photoelectron Spectroscopy; D012235:Rhodamines / Q000302:isolation & purification / Q000528:radiation effects; D012399:Rotation; D013056:Spectrophotometry, Ultraviolet; D013499:Surface Properties; D013997:Time Factors; D014025:Titanium / Q000737:chemistry*; D014961:X-Ray Diffraction
chemical_list: D012235:Rhodamines; C009495:titanium dioxide; D019800:Phenol; D014025:Titanium; C029773:rhodamine B; D001729:Bismuth