“Synthesis of Fe3O4 Nanoparticles Using Lichen (Collema ABU01502) Extract and Their Application in the Removal of 4-Nitrophenol from Aqueous Solution”. Communication In Physical Sciences, vol. 12, no. 8, Dec. 2025, pp. 2253-22702026, https://journalcps.com/index.php/volumes/article/view/833.