| abstract |
The invention provides a silt-supported photocatalyst. The silt-loaded photocatalyst comprises: loaded graphene-nano BiFeO 3 Sand and sand ofDegrading organic pollutants in rivers and lakes; the loaded graphene-nano BiFeO 3 The silt preparation steps are as follows: s1, screening the sediment by cyclone classification to remove coarse grains and obtain sediment with fine grain size; s2, carrying out surface activation treatment on the fine-grain silt; s3, carrying out graphene loading on the surface-activated fine-particle-size silt; s4 carrying out nano photocatalytic loading on the graphene-loaded silt. The mud-supported photocatalyst provided by the invention has good degradation capability on organic pollutants which are difficult to degrade in water and bottom mud, can be used for degrading and purifying organic matters in natural water, has a larger practical application prospect and commercial development value, solves the problems of catalyst agglomeration and secondary pollution, and opens up a new way for organic pollution of rivers and lakes. |