Mesoporous aluminosilicate molecular sieve: Control of textural properties by post-synthesis hydrothermal reatment

• A. Hidrobo ^[1] ; J. Retuert ^[1] ; P. Araya ^[1]
  1. [1] Centro para la Investigación Multidisciplinaria Avanzada en Ciencia de los Materiales
• Localización: Journal of the Chilean Chemical Society (Boletín de la Sociedad Chilena de Química), ISSN-e 0717-6309, ISSN 0366-1644, Vol. 48, Nº. 3, 2003, págs. 37-40
• Idioma: inglés
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• Resumen

  • By means of sol-gel synthesis with silicon and aluminium alkoxides, Triton X-114, and hydrothermal stabilization at various times and temperatures, were obtained aluminosilicates which have a porous structure (MSA) and are thermally stable and partially ordered. The as-synthesized MSA samples were subjected to hydrothermal treatment (HT) from 6 to 96 hours at 150 °C and at 110 to 175 °C for 6 hours to determine the effect of time and temperature on the structure of the final aluminosilicate. All the materials obtained are mesoporous, showing changes in their structural properties: surface area, pore diameter, and mesopore area and volume in direct relation to temperature and HT time