Production of activated carbon from HNO₃-treated sawdust for methylene blue adsorption in solution. Vietnam Journal of Catalysis and Adsorption, [S. l.], v. 14, n. 1, p. 82–86, 2025. DOI: 10.62239/jca.2025.015. Disponível em: https://jca.edu.vn/index.php/jca/article/view/2025.015.. Acesso em: 12 aug. 2026.