Preparation and characterization of Ag loaded mesoporous SBA-15 antibacterial agent and its characterization

In order to solve the problems of poor thermostability,easy decomposition and short life of organic antibacterial agents,the mesoporous SBA-15 was chosen as carriers and γ-aminopropyl-triethoxysilane(APTES) as modifier,the mesoporous SBA-15 was modified by grafting amino-functional group onto its surface.The conventional AgNO3 solution dipping method was adopted for loading Ag on SBA-15,and an antibacterial agent was prepared,which has good quality,wide spectrum and permanent antibacterial effect.XRD,FT-IR,EDS and TG were used to characterize the agent.XRD and TEM examination demonstrate that the prepared antibacterial carrier SBA-15 has regular porous structure.FT-IR and TG data show that the amino functional groups were grafted onto the mesoporous SBA-15.EDS and TEM analysis indicates that the effective antibacterial component Ag has successfully loaded on SBA-15.