Iranian Journal of Catalysis (IJC) Effectiveness of Ceria and Stania Nanoparticles in Photodegradation Tenoxicam Antibiotics Using UV-H2O2 Volume 13 (2023) IJC Issue 3, September 2023 2023 11 17 Effectiveness of Ceria and Stania Nanoparticles in Photodegradation Tenoxicam Antibiotics Using UV-H2O2 10.30495/ijc.2023.1985433.2006 EN Hussein Abdel-Fattah Khalaf Chemistry department, Faculty of Science, Damanhour University, Damanhour, Egypt 0000-0003-3120-0331 Randa Fouad Abd El-Baki Chemistry department, Faculty of Science, New Valley University, El-Kharja, 72511, Egypt Journal Article 2023 11 17 Both metal oxides, ceria (CeO2) and stania (SnO2) are prepared by precipitation technique using ammonia solution (1:1) and characterized by thermogravimetric analysis (TGA), x-ray powder diffraction (XRD), transmission electron microscope (TEM), nitrogen adsorption-desorption (for the specific surface area determination, SBET) and used in the photodegradation of Tenoxicam (TEN) antibiotics by using ultraviolet irradiation in presence of hydrogen peroxide. The obtained results showed that ceria and stania have a comparable surface area of 12 and 11 m2 g-1, respectively, and the crystallite size measured by XRD was found to be 44 and 18 nm for ceria and stania, respectively. Also, the results show that by increasing the exposure time, the amount of degraded antibiotic was increased. Data obtained show that both oxides, ceria, and stania can be used effectively as catalysts in the photodegrading process as photocatalysts. Stania is faster than ceria to degrade TEN antibiotics. Ceria needs more time than stania to degrade the drug at 100%, in which the TEN is fully degraded in the presence of stania and H2O2 at 40 minutes under certain conditions.