Abstract
The g-C₃N₄-BiOBrxI1-x nanocomposites were successfully prepared using solvothermal methods. The obtained g-C₃N₄-BiOBrxI1-x composites had tunable band structures and displayed preferable photocatalytic performance for CO₂ reduction irradiated by visible light. Moreover, comparing to pure g-C3N4 and corresponding BiOBrxI1-x, all the obtained g-C₃N₄-BiOBrxI1-x nanocomposites exhibited distinctly higher activity for CO₂ reduction, with 5% g-C₃N₄-BiOBr0.25I0.75 nanocomposites displaying the best photocatalytic performance. Enhanced photocatalytic performance of g-C₃N₄-BiOBrxI1-x nanocomposites may arrive from their advantages of high efficiency of electron-hole separation, tunable band structures, and rapid charge transfer. Moreover, a possible visible light induced photocatalytic mechanism on g-C₃N₄-BiOBrxI1-x nanocomposites was further proposed.
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