info:eu-repo/semantics/article
Mesoporous silica-titania composed materials
Fecha
2006-08Registro en:
Messina, Paula Verónica; Morini, Marcela Ana; Sierra, Maria Belen; Schulz, Pablo Carlos; Mesoporous silica-titania composed materials; Academic Press Inc Elsevier Science; Journal of Colloid and Interface Science; 300; 1; 8-2006; 270-278
0021-9797
CONICET Digital
CONICET
Autor
Messina, Paula Verónica
Morini, Marcela Ana
Sierra, Maria Belen
Schulz, Pablo Carlos
Resumen
Titania mesosized particles were obtained by TiCl4 hydrolysis in Aerosol OT/water/n-hexane microemulsion. These particles were incorporated in surfactant templated silica mesoporous materials of MCM-41 and MCM-50 structures. Results depended on the surfactant: hexadecyltrimethylammonium bromide templated materials retained the honeycomb structure with small modifications in their characteristics. The dodecyltrimethylammonium bromide templated material changed from honeycomb to lamellar structure when the titania particles were included, with dramatic changes in the structure characteristics. The didodecyldimethylammonium bromide templated lamellar structure was retained after TIO2 inclusion, with a slight increase in the specific area, pore diameter and pore walls thickness.