Adowei P, Ebong SE, Obuzor GU. Green Synthesis of Iron-Nano-composite Capped by Ogbono Tree Leaves Extract to Remove 2-(N, N-dimethyl-4-aminophenyl) azobenzene carboxylic acid and Sodium-4-{[4-(dimethylamino) phenyl] diazenyl} benzene-1-sulfonate Colorants from Contaminated Water. IJRTI. 2026;1(1):163-179. Accessed September 2, 2026. https://www.ijrti.com.ng/index.php/home/article/view/40