AgBr quantum dots decorated mesoporous Bi₂WO₆architectures with enhanced photocatalytic activities for methylene blue

Abstract

AgBr quantum dots (QDs) were decorated on the surface of Bi₂WO₆to form a novel AgBr/Bi₂WO₆heterojunction. The enhancement of catalytic efficiency of AgBr/Bi₂WO₆heterojunctions relative to pure Bi₂WO₆could be associated to differences in their lifetime as holes and electrons, and to valence and conduction band positions.