UPTAKE OF Co(II), Pb(II) AND Ni(II) IONS BY Annona senegalensis STEM BARK BIOCHAR FROM AQUEOUS SOLUTION: OPTIMIZATION, KINETIC AND THERMODYNAMIC STUDIES. FUDMA JOURNAL OF SCIENCES, [S. l.], v. 8, n. 2, p. 59–72, 2024. DOI: 10.33003/fjs-2024-0802-2341. Disponível em: https://fjs.fudutsinma.edu.ng/index.php/fjs/article/view/2341. Acesso em: 4 sep. 2025.