Enhanced Photocatalytic Activity of Bi24O31Br10: Constructing Heterojunction with BiOI. Issue 3 (March 2017)

• Record Type: Journal Article
• Authors: Lou, Xi; Shang, Jun; Wang, Liang; Feng, Haifeng; Hao, Weichang; Wang, Tianmin; Du, Yi
• Is Part Of: Journal of materials science & technology. Volume 33:Issue 3(2017:Mar.)
• Page Start: 281
• Page End: 284
• Publication Date: 2017-03
• Subjects: Bi24O31Br10 -- Hydroiodic acid -- BiOI -- Heterojunction -- Photocatalyst; Metals -- Periodicals; Materials science -- Periodicals; Materials science; Metals; Periodicals; 620.1105
• DOI: 10.1016/j.jmst.2016.05.002
• Languages: English
• ISSNs: 1005-0302

Abstract

Abstract : 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, Bi24 O31 Br10, forming a Bi24 O31 Br10 /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 Bi24 O31 Br10 /BiOI heterojunction is ascribed to the unique electronic structure consisting of complementary band structures of BiOI and Bi24 O31 Br10 . Iodide ions are regarded as an effective reagent to construct bismuth-based photocatalytic heterojunctions with improved photocatalytic activity.