Enhanced Photocatalytic Activity of Bi24O31Br10: Constructing Heterojunction with BiOI

• 来源期刊: 材料科学技术（英文版）
• 年，卷（期）: 2017,（3）
• 页码范围: 281-284
• 页数: 4页
• 语种: 英文

摘要

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,Bi24O31Br10,forming a Bi24O31Br10/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 Bi24O31Br10/BiOI heterojunction is ascribed to the unique electronic structure consisting of complementary band structures of BiOI and Bi24O31Br10.Iodide ions are regarded as an effective reagent to construct bismuth-based photocatalytic heterojunctions with improved photocatalytic activity.