TY - JOUR
T1 - Novel insights on magadiite disaggregation
T2 - A multitechnique study on thermal stability
AU - Martins De Souza E Silva, Juliana
AU - Paul, Geo
AU - Bendall, James
AU - Bisio, Chiara
AU - Marchese, Leonardo
AU - Pastore, Heloise O.
PY - 2013/8/28
Y1 - 2013/8/28
N2 - Disaggregated magadiite was obtained through ion-exchange in acidic media from magadiite intercalated in the synthesis with cetyltrimethylamonium cations. The combination of Soxhlet extraction and ultrasound during the procedure resulted in different morphology and different properties when compared with the pristine material, as observed by SEM. Thermal and surface properties studies performed by VT-XRD, TG, VT-FTIR, HETCOR SS-NMR, and N2 physisorption show that disaggregated magadiite presents a basal space of 1.35 nm and that [SiO4] entities of adjacent magadiite silicate layers connect during ion-exchange under ultrasound. Despite these bonding events, the surface area increased from 20-26 m2 g-1 in CTA-magadiite to 55-72 m2 g-1 in disaggregated magadiite.
AB - Disaggregated magadiite was obtained through ion-exchange in acidic media from magadiite intercalated in the synthesis with cetyltrimethylamonium cations. The combination of Soxhlet extraction and ultrasound during the procedure resulted in different morphology and different properties when compared with the pristine material, as observed by SEM. Thermal and surface properties studies performed by VT-XRD, TG, VT-FTIR, HETCOR SS-NMR, and N2 physisorption show that disaggregated magadiite presents a basal space of 1.35 nm and that [SiO4] entities of adjacent magadiite silicate layers connect during ion-exchange under ultrasound. Despite these bonding events, the surface area increased from 20-26 m2 g-1 in CTA-magadiite to 55-72 m2 g-1 in disaggregated magadiite.
UR - http://www.scopus.com/inward/record.url?scp=84884172469&partnerID=8YFLogxK
U2 - 10.1039/c3cp51491a
DO - 10.1039/c3cp51491a
M3 - Article
SN - 1463-9076
VL - 15
SP - 13434
EP - 13445
JO - Physical Chemistry Chemical Physics
JF - Physical Chemistry Chemical Physics
IS - 32
ER -