APPLICATION OF HALLOYSITE GEOPOLYMERS TO REMOVAL OF METHYL BLUE FROM AQUEOUS SOLUTION. International Journal of Geomate, [S. l.], v. 21, n. 87, p. 87–94, 2021. Disponível em: https://geomatejournal.com/geomate/article/view/1674. Acesso em: 13 oct. 2026.