关键词: 无机抗菌材料;白炭黑;钆;锌;改性

Abstract: Zinc-Gadolinium antimicrobial white carbon black was prepared by sol-gel method.The materials were modified by adding surfactants.And the changes of particle size, specific surface area and antibacterial property were investigated before and after the modification.The samples were characterized by particle size analysis, BET, SEM and EDS.The results show that the particle size of the modified material decreases, and the particle size distribution is relatively concentrated.The specific surface area increase to 275.20209 m2/g.Antibacterial test results show that the antibacterial property of the modified material is enhanced.And antibacterial rate of Zinc-Gadolinium antimicrobial white carbon black can reach above 90.29％.

Key words: inorganic antibacterial material;white carbon black;gadolinium;zinc;modification