| abstract |
The invention belongs to the technical field of photocatalysis, and discloses a magnetic photocatalytic composite material, a preparation method and an application thereof. The composite material is to dissolve Bi(NO 3 ) 3 .5H 2 O in solution A, then add polythiophene dispersion and stir, and then add magnetic proton-templated carbon nitride, abbreviated as M‑zmpg‑C 3 N 4 , continue to stir and carry out ultrasonic treatment to obtain a mixed solution; drop the KBr solution into the mixed solution and stir, react hydrothermally at 140-160°C, wash and dry. When M‑zmpg‑C 3 N 4 is combined with BiOBr and polythiophene, the degradation rate of DMP photocatalytic degradation is increased by more than 40% than that of carbon nitride alone, and the degradation rate of BiOBr is increased by more than 50%. The degradation rate of DMP is above 78%. Magnetic photocatalysts can also be quickly separated from water by magnetic separation technology, recycled, and reused. |