The research aims to study the effect of pH on optical reactions in dye breakdown by silver/zinc oxide nanoparticles synthesized from ashes through the breakdown of reexored orren dyes, and rodamine b. Under the light of the quality silver/zinc oxide at different PH: 3,5,7,9 and 11. H.H.7 can best decompose both dyes, as the maximum dye breakdown percentage is 90.50% in reactive orren dyes and 94.84 percent in rhodamine b dyes, so the right pH content on the surface of zinc oxide plays an important role in optimizing the efficiency of the light reaction during the viche. ...