关键词: 抗菌白炭黑;锌;铈;抗菌陶瓷

Abstract: A novel zinc-cerium antibacterial white carbon black was successfully synthesized via a sol -gel method and used as an excellent antibacterial material .The single factor experiment investigates the influence of zinc ions concentration , cerium ions concentration and reaction time on the sterilization rate of zinc-cerium antibacterial white carbon black .The optimum preparation conditions: concentration of zinc ions was 0.8 mol· L-1 , concentration of cerium ions was 0.005 mol· L-1 and reaction time was 1. 5 h.Detecting antibacterial property of products by antibacterial experiment ( spread plate method, strains with e.coli bacteria).The antibacterial material was characterised by SEM , EDS, BET, FTIR and XRD.The results show that the structure of the zinc -cerium antibacterial white carbon black are puffed and amorphous.The average particle size of antibacterial material is small .The specific surface area of zinc-cerium antibacterial white carbon black is larger twice than pure white carbon black , more advantageously added to the product as an additive .The loaded zinc ionsandcerium ions shows little influence on the structure of white carbon black .Further, the zinc-cerium antibacterial white carbon black is added to the ceramic as an antibacterial material , and antibacterial ceramics with antibacterial properties are prepared.

Key words: antibacterial white carbon black;zinc;cerium;antibacterial ceramic