I hope this paper will help..

http://ac.els-cdn.com/S0162013402004890/1-s2.0-S0162013402004890-main.pdf?_tid=f87c5c98-55a2-11e7-82f5-00000aacb361&acdnat=1497954590_f33d8ec351a3358dfa09a0f9542fcca8

ion exchange with silver nitrate solution. 

you can refer to the paper through the link below, this paper did not describe the detailed ion exchange procedures, but since the author has done plenty of work on the Ag exchanged zeolites, i think you can find a detailed preparation procedure through the references of this paper. 

http://www.sciencedirect.com/science/article/pii/092765139500020A?via%3Dihub