“…In previousr eviews on bismuth photocatalytic materials, three major efficiency problems of these materials,n amely, opticalc apturee fficiency,c arrier separation efficiency,a nd carrier utilization efficiency,h ave been summarized in detail, [14][15][16][17][18][19][20] and the material aspect of bismuth photocatalysts is systematically understood.T herefore, the research presented herein focuses on the mechanism of the CO 2 reactionp rocess, mainly based on in situ FTIR spectroscopy and theoretical calculations. In previousr eviews on bismuth photocatalytic materials, three major efficiency problems of these materials,n amely, opticalc apturee fficiency,c arrier separation efficiency,a nd carrier utilization efficiency,h ave been summarized in detail, [14][15][16][17][18][19][20] and the material aspect of bismuth photocatalysts is systematically understood.T herefore, the research presented herein focuses on the mechanism of the CO 2 reactionp rocess, mainly based on in situ FTIR spectroscopy and theoretical calculations.…”