| abstract |
The invention relates to the technical field of photocatalysts, and specifically discloses a Bi/g-C 3 N 4 /BiOBrO 3 composite photocatalyst and a preparation method and application thereof. The preparation method includes the following steps: adding g-C 3 N 4 powder and BiOBrO 3 powder with a mass ratio of 1:1 to 1:5 into absolute ethanol, reacting, separating out the precipitate, washing, drying, and obtaining g‑C 3 N 4 /BiOBrO 3 heterostructure; Bi nanoparticles and g‑C 3 N 4 /BiOBrO 3 heterostructure powder with a mass ratio of 1:1 to 1:15 were added to anhydrous ethanol, and ultrasonically reacted , the precipitate is separated, washed, dried and ground to obtain a Bi/g-C 3 N 4 /BiOBrO 3 composite photocatalyst. The Bi/g-C 3 N 4 /BiOBrO 3 composite photocatalyst provided by the invention can make full use of visible light, has good photo-generated carrier separation efficiency, ensures the strong redox activity of the catalyst, and can efficiently degrade pollutants . |