Artículo
Rapid pore expansion of mesoporous silica-based materials using microwave irradiation and pore swelling agents
Fecha de publicación:
12/2021
Editorial:
Elsevier
Revista:
Materials Chemistry and Physics
ISSN:
0254-0584
Idioma:
Inglés
Tipo de recurso:
Artículo publicado
Clasificación temática:
Resumen
In the present work we analyze the use of microwave radiation in the presence of pore swelling agents as a post-synthesis treatment for expanding the pore size of non-calcined SiO2-based mesoporous materials. In comparison with traditional hydrothermal treatments, using microwaves decreases significantly the time required for this process and is compatible with both ionic and non-ionic surfactant pore templates (e.g. cetyltrimethylammonium bromide (CTAB) and polypropyleneglycol-based surfactants). The evolution of the mesostructural parameters has been followed with small angle X-ray scattering (SAXS), X-ray diffraction (XRD), field-emission Scanning electron microscopy (FESEM) and N2 porosimetry. In particular, this strategy allows an easy approach for post-processing non-calcined templated siliceous materials and tailoring their final pore dimensions.
Palabras clave:
MESOPOROUS MATERIALS
,
MICROWAVE
,
SILICA
,
SOFT TEMPLATES
,
SOL-GEL
Archivos asociados
Licencia
Identificadores
Colecciones
Articulos(SEDE CENTRAL)
Articulos de SEDE CENTRAL
Articulos de SEDE CENTRAL
Citación
Bordoni, Andrea Veronica; Lombardo, Maria Veronica; Wolosiuk, Alejandro; Rapid pore expansion of mesoporous silica-based materials using microwave irradiation and pore swelling agents; Elsevier; Materials Chemistry and Physics; 274; 12-2021; 1-8
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