title: High performance B doped BiVO4 photocatalyst with visible light response by citric acid complex method.
abstract: A B-doped BiVO4 photocatalyst was synthesized by citric acid complex method and using H3BO3 as the dopant source, and the photocatalyst was characterized with XPS, XRD, SEM, BET and UV-Vis DRS. The photocatalytic activity was evaluated by the photocatalytic degradation of a methyl orange (MO) solution under visible light. This assay revealed that both the pure BiVO4 and all of the B doped samples were the monoclinic phase. Doping the BiVO4 with B increased the number of V(4+) and oxygen vacancies, which led to the red shift of the absorbing boundary of the B-doped BiVO4 but had little influence on the morphology and crystal size. The B doping improved the photocatalytic activity, and the highest photocatalytic degradation rate of 98% occurred with a B dopant concentration of 0.04.
authors.affiliation: College of Environmental and Chemical Engineering, Shenyang Ligong University, Shenyang 110165, China. minwang62@msn.com
authors.forename: Min
authors.initials: M
authors.lastname: Wang
authors.forename: Haoyan
authors.initials: H
authors.lastname: Zheng
authors.forename: Qiong
authors.initials: Q
authors.lastname: Liu
authors.forename: Chao
authors.initials: C
authors.lastname: Niu
authors.forename: Yinsheng
authors.initials: Y
authors.lastname: Che
authors.forename: Mingyan
authors.initials: M
authors.lastname: Dang
mesh_terms: D001391:Azo Compounds / Q000737:chemistry* / Q000302:isolation & purification; D001729:Bismuth / Q000737:chemistry*; D001895:Boron / Q000737:chemistry*; D002384:Catalysis; D019343:Citric Acid / Q000737:chemistry*; D008027:Light; D010782:Photolysis; D014638:Vanadates / Q000138:chemical synthesis / Q000737:chemistry*
chemical_list: D001391:Azo Compounds; C091754:bismuth vanadium tetraoxide; D019343:Citric Acid; D014638:Vanadates; C100258:methyl orange; D001895:Boron; D001729:Bismuth
keywords: BiVO(4); Boron-doping; Methyl orange solution; Photocatalysis; Sol–gel method