SYNTHESIS AND CHARACTERIZATION OF ACRYLIC ACID-MODIFIED OCIMUM BASILICUM HYDROGEL AS A SUSTAINABLE ADSORBENT FOR COBALT ION REMOVAL FROM AQUEOUS SOLUTIONS. FMHR. 2025;3(10):709-727. Accessed November 10, 2026. https://fmhr.net/index.php/fmhr/article/view/1784