| abstract |
The invention discloses a preparation method, product and application of a graphitic phase carbon nitride/periodic bismuth oxyiodide heterojunction with up-conversion characteristics, including: Bi(NO 3 ) 3 ·5H 2 O, Re(NO 3 ) 3 , g-C 3 N 4 and KI were dispersed in ethylene glycol respectively, after ultrasonic treatment, were recorded as A solution, B solution, C solution and D solution respectively; B solution was added to A solution, stirred, and then added C solution, stir, finally add D solution, stir evenly to obtain a mixed solution; react the obtained mixed solution at 150 ℃ ~ 160 ℃ for 10 to 12 h, and dry the obtained product to obtain the precursor g-C 3 N 4 /Re 3+ ‑BiOI; the precursor g‑C 3 N 4 /Re 3+ ‑BiOI is calcined at 450 to 480° C. for 2 to 3 hours to obtain a product g‑C 3 N 4 /Re 3+ ‑Bi 5 O 7 I. The present invention prepares the graphitic carbon nitride/periodic bismuth heterojunction with up-conversion characteristics by two steps of solvothermal method and calcination method, has excellent electron hole separation ability and large spectral response range, and has wide application range . |