Enhanced Photocatalytic Denitrification Rhodamine Bover In2O3/Bi24O31Br10 Nanocomposites under Visible Light Irradiation

摘要

A novel In2O3/Bi24O31Br10 composite photocatalyst,where In2O3 nanoparticles with the diameter of about 5～10 nm were tightly attached on the surface of Bi24O31Br10 plates,was prepared by using hydrolysis,impregnation method and post-thermal process.Photocatalytic activity was evaluated by the degradation of Rhodamine B under the visible light irradiation.Effects of the contents of In2O3 nanoparticles on the optical property and photocatalytic activity of In2O3/Bi24O31Br10 composite were also investigated.Compared with neat In2O3 and Bi24O31Br10 materials,15In2O3/Bi24O31Br10 composite exhibits the best photocatalytic activity owing to the efficient separation of photogenerated electron and hole pairs,which is evidenced by photoluminence spectra.More than 95％ of Rhodamine B solution can be degraded by 15In2O3/Bi24O31Brl0 sample in 30 min.