One-pot synthesis of novel flower-like BiOBr0.9I0.1/BiOI heterojunction with largely enhanced electron-hole separation efficiency and photocatalytic performances
作者： Xuemei Jia , Jing Cao , Haili Lin , Yong Chen , Wenfu Fu
DOI: 10.1016/J.MOLCATA.2015.08.008
关键词: Heterojunction 、 Photocatalysis 、 One-pot synthesis 、 Absorption (electromagnetic radiation) 、 Catalysis 、 Visible spectrum 、 Methyl orange 、 Photochemistry 、 Chemistry 、 Electron hole
摘要: Abstract A novel flower-like BiOBr 0.9 I 0.1 /BiOI heterostructure was fabricated by a simple one-pot method at room temperature. Under visible light (λ > 400 nm), the as-prepared photocatalysts with different contents exhibited notably enhanced degrading efficiency for methyl orange and phenol solutions, among which 10% possessed highest photocatalytic activity. The activity improvement of could be ascribed to synergetic effects ion doping heterostructure. On basis Mott-Schottky analysis, new − energy level formed on top valence band strengthened absorption. Moreover, heterojunction interface efficiently reduced recombination electron-hole pairs. This study reveals that coupling structure played significant highly efficient generation separation photo-generated carriers.
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