Enhanced Photocatalytic Activity of Bi_(24)O_(31)Br_(10): Constructing Heterojunction with BiOI

• 作 者: Xi Lou Jun Shang Liang Wang Haifeng Feng Weichang Hao Tianmin Wang Yi Du
• 机 构: Center of Material Physics and Chemistry, Beihang University,College of Physics and Electronic Engin
• 出 处: Journal of Materials Science & Technology
• 发表日期: 2017年03期
• 关键词: photocatalytic bismuth parent visible rhodamine photocatalyst iodide purificatio

Bismuth-based compounds have been regarded as an important class of visible-light photocatalysts due to their special electronic structures. In this paper, iodide ions are introduced to modify bismuth-based compound, Bi_(24)O_(31)Br_(10), forming a Bi_(24)O_(31)Br_(10)/BiOI heterojunction structure. A significant enhancement of photocatalytic activity compared to the parent compounds is observed in de-coloration of rhodamine B(Rh.B) solution. The improved photocatalytic property of Bi_(24)O_(31)Br_(10)/BiOI heterojunction is ascribed to the unique electronic structure consisting of complementary band structures of BiOI and Bi_(24)O_(31)Br_(10).Iodide ions are regarded as an effective reagent to construct bismuth-based photocatalytic heterojunctions with improved photocatalytic activity.

Bismuth-based compounds have been considered as an important class of visible-light photocatalysts due to their special electronic structures. In this paper, iodide ions are introduced to modify bismuth-based compounds, Bi_ (24) O_ (31) Br_ , forming a Bi_ (24) O_ (31) Br_ (10) / BiOI heterojunction structure. A significant enhancement of photocatalytic activity compared to the parent compounds is observed in de-coloration of rhodamine B (Rh.B) solution. The improved photocatalytic (24) O_ (31) Br_ (10) / BiOI heterojunction is ascribed to the unique electronic structure consisting of complementary band structures of BiOI and Bi_ (24) O_ (31) Br_ an effective reagent to construct bismuth-based photocatalytic heterojunctions with improved photocatalytic activity.