| abstract |
The invention provides a titanium metal organic framework supported copper sulfide composite photocatalyst and a preparation method and application thereof, belonging to the technical field of catalysts. In the present invention, copper sulfide is loaded on the surface of MIL-125 (Ti) to construct a composite Z-type system. MIL-125 (Ti) has good photocatalytic performance, and copper sulfide is a narrow energy gap semiconductor that can absorb visible light. It can produce a synergistic effect, reduce the recombination of MIL-125(Ti) photogenerated electron-holes, and improve its ability to absorb visible light, and the photogenerated electrons generated by the Z-type system can reduce the adsorbed redox into superoxide radicals, partially Superoxide radicals can react with hydrogen ions to generate hydroxyl radicals, that is, the composite photocatalyst provided by the present invention includes a variety of active radicals, which can oxidatively degrade pollutants and improve its photocatalytic performance. |