The research on synthesis and characterization of composites ZnO-Fe2O3 for photodegradation of methylene blue has been done. The photodegradation process of methylene blue was carried out in several variables including the effect of contact time and the initial concentration of the dye as well as in the above conditions pHpzc. ZnO-Fe2O3 composites were made with a mole ratio of ZnO to Fe2O3 (1:…