| abstract |
The invention relates to the technical field of photocatalytic adsorption materials, and discloses an Ag 3 PO 4 -BiVO 4 heterojunction-supported porous carbon photocatalytic degradation material and a preparation method thereof, including the following formula materials: AgNO 3 , Na 2 HPO 4 , Nanometer BiVO 4 , Si-doped porous carbon material. The Ag 3 PO 4 ‑BiVO 4 heterojunction supported porous carbon photocatalytic degradation material and its preparation method form an Ag 3 PO 4 ‑BiVO 4 heterojunction heterojunction structure, reducing the photogenerated electrons and holes of BiVO 4 The recombination rate is high, the holes can react with water molecules to generate hydroxyl radicals, and react with organic pollutants such as phenol, methyl orange, etc. Redox reactions, Ag 3 PO 4 forms delocalized π * bonds in the conduction band, while PO 4 3 ‑Has an inductive effect, which promotes the separation of photogenerated electrons and holes, and the silicon-doped porous carbon material has a rich pore structure and a huge specific surface area, which enables the uniform dispersion and loading of the Ag 3 PO 4 ‑BiVO 4 heterojunction, avoiding The agglomeration and agglomeration of BiVO 4 in water, the physical adsorption of heavy metal ions such as Cu 2+ , Hg + , Cd 2+ , and the degradation of organic pollutants by the porous carbon material were investigated. |