| abstract |
The invention discloses a preparation method of composite visible light catalyst ZIF-8@S-g-carbon nitride, which is characterized in that thiourea is calcined in a tube furnace at 475-550 DEG C under H 2 S atmosphere for 2- 4h, obtain sulfide layered g-C 3 N 4 , namely S-g-C 3 N 4 ; respectively take zinc nitrate, dimethyl imidazole, S-g-C 3 N 4 in proportion, and add the three into methanol to form a mixture; the mixture was placed in an ice-water bath for reaction to obtain ZIF-8@S-g-C 3 N 4 . The ZIF-8@S-g-C 3 N 4 composite photocatalyst provided by the invention has a wide spectral response range, high carrier separation efficiency and photocatalytic activity, and can be separated and recovered, recycled, and a preparation method Simple, strong controllability, easy to achieve large-scale production, without special equipment and harsh conditions. |