CETMIC   05378
CENTRO DE TECNOLOGIA DE RECURSOS MINERALES Y CERAMICA
Unidad Ejecutora - UE
congresos y reuniones científicas
Título:
Aplicación de un material nanoarcilloso como posible adsorbente del tinte red allura
Autor/es:
SUSANA Y. MARTÍNEZ STAGNARO A, JOSÉ ORTIGA, NORMA GALLEGOS, CRISTINA VOLZONE
Lugar:
Santa Fe
Reunión:
Congreso; CONGRESO INTERNACIONAL DE METALURGIA Y MATERIALES-SAM-CONAMET/IBEROMAT/MATERIA -Tópico: Simposio 8.7. Materiales porosos nanoestructurados; 2014
Resumen:
Generally, clay minerals have a great capacity to retain pollutants of various types; this is due to its natural characteristics, mainly from its small particle size,which gives a large surface area. Notwithstanding this, the adsorption of the organic molecule used as a textile dye (Allura Red) tested in this study on the interface of a clay material, is hampered by the hydrophilic nature of the substrate. This property can be changed by specific organophilic clay treatments done.In this study a clay mineral was modified with an organic cation known as hexadecyltrimethylammonium (HDTMA) and later used as adsorbent dye. Retention assays to test the ability of the solid were performed by contacting for 24 hours, different amounts of organoclay, also called, Nanoclay with a solution at 250 mg.L-1. The analysed solid/liquid ratio was in the range of 0.2 to 5 mg.L-1. Analysis by UV-visible spectrophotometry allowed quantification of the amount of dye retained while by instrumental techniques such as X-Ray Diffraction (XRD) and Infrared spectrophotometry (IR) were studies solid.