| abstract |
An iron-based catalytic material comprises an iron nanoparticle catalyst, wherein powder of the iron nanoparticle catalyst is in a nano lamellar structure, and a certain amount of iron nanoparticles with the diameter of about 2-20nm are loaded on the surface and inside of the iron nanoparticle catalyst. The iron-based catalytic material has the characteristic of large specific surface area, so that the contact area and contact sites of the material and pollutants are greatly increased, and the adsorption property of the material is enhanced. In the invention, the small-sized iron nanoparticles not only have magnetism, but also can increase the surface active centers of the material, and the light absorption capacity of the material is enhanced by the surface effect generated in the same way, so that the material is favorable for recycling and has high-efficiency light utilization rate and catalytic activity. The material can rapidly degrade methylene blue in sewage. Therefore, the invention can be used for dye sewage treatment and water body restoration. |