Alrubaie, H.A. and Muzahem, B.M. 2021. Variation of pH and Composite Dosage on the Photocatalytic Activity for ZnO/epoxy Nanocomposites. Iraqi Journal of Physics. 19, 51 (Dec. 2021), 33–40. DOI:https://doi.org/10.30723/ijp.v19i51.686.