Abstract: The silver-supporting antibacterial zeolite was prepared by the ion exchanging method with zeolite as the carrier and AgNO₃ solution as the exchanging solution.
The influence of preparation process on exchanging ability of zeolite was studied and the optimum preparation process was determined.
The structure was characterized by X-ray diffraction (XRD) and the antibacterial ability was tested. The results show that the
exchanging ability is greatly influenced by the concentration of exchanging solution, temperature, time and pH values. The suitable concentration of
exchanging solution is 0.1mol/L. The pH value should be controlled between 6--8. In view of energy consumption, ambient temperature is
appropriate, but in view of reaction time, the reaction should be heated. The silver-supporting antibacterial zeolite has an excellent antibacterial
performance against E. coli and S. faecalis.

Key words: zeolite silver-supported antibacterial agent, preparation process, antibacterial performance