Influence of Alumina Incorporated on MCM 41 Surface forMesoporous Characteristic and Methylene Blue Adsorption. Pakistan Journal of Analytical & Environmental Chemistry, Pakistan, v. 21, n. 1, p. 87 – 91, 2020. DOI: 10.21743/pjaec/2020.06.10. Disponível em: https://pjaec.pk/index.php/pjaec/article/view/124. Acesso em: 3 jul. 2025.