Ceramic filter element with dual long-acting antibacterial performance and preparation method thereof

The invention discloses a ceramic filter element with double long-acting antibacterial properties and a preparation method thereof, relates to improvement of a filter material of water purification equipment, and in particular relates to improvement of a ceramic filter element of the water purification equipment. The antibacterial coating of the ceramic filter element is composed of a polymer layer which is uniformly dispersed and embedded with silver nanoparticles; the preparation process of the antibacterial coating is as follows: silane coupling agent A molecules and silane coupling agent B molecules are subjected to dehydration condensation reaction with a large number of hydroxyl groups on the surface of the ceramic, and covalently bonded to the surface of the ceramic. Initiating covalent polymerization of monomer molecules and silane coupling agent B molecules through ultraviolet irradiation to obtain long-chain molecules formed by the monomer molecules and the silane coupling agent B; the long-chain mo