Assessment of biocidal efficacy of zinc oxide-zeolite nanocomposites as a novel water disinfectant against commercial disinfectants used in water purification oleh Manar Bahaa El Din Mohamed, Fatma I. Abo El Ela, Rehab Mahmoud, Ahmed A. Farghali, Sarah I. Othman, Ahmed A. Allam, Sahar Abdel Aziz Abdel Aleem