PHYSICOCHEMICAL CHARACTERIZATION AND COMPARATIVE EVALUATION OF BIOCHAR MATERIALS FOR HEAVY METAL ADSORPTION. IJCSR, [S. l.], v. 1, n. 2, p. 38–48, 2026. Disponível em: https://ijcsrjournal.com/index.php/ijcsr/article/view/12. Acesso em: 7 sep. 2026.