Nano silver composite antibacterial material using porous ceramics as carrier and preparation method thereof

The invention relates to a nano-Ag compound antisepsis material using porous porcelain as the carrier and method for preparing same. In the method, coupling agent modified porous porcelain is dipped in 10-100nm nano-Ag sol for 12-24 hours, which is then taken out and washed with alcohol and the product is obtained after drying. The porous porcelain material is selected from the porous porcelain for filtering water, and the coupling agent is ramda-mercaptopropyl trimethoxy silane or ramda-aminopropyl triethoxy silane. The invention modifies the porous porcelain carrier with the coupling agent, fixes the nano-Ag in and on the surface of the porous porcelain in a chemical bonding way, which can reach the effects of uniform dispersion without changing the original mechanical properties of the porous porcelain, not easy fall-off in friction and impact condition and sterilization in continuance. The invention is characterized in small consumption of raw materials, simple processing, low production cost and short production period.