Visible-Light Photocatalytic Degradation of Metronidazole Using Bismuth Oxide-Doped Erbium Oxide Anchored Graphene Oxide Nanocomposites: Kinetics and Mechanism. - Ali, Nada D.; Saed, Usama A.; Abdulnabi, Waqar A.; Zeitoun, Zeyad (Bulletin of Chemical Reaction Engineering & Catalysis, 2026)