TY - JOUR
T1 - Synthesis and characterization of SBA-15 with titania clusters entrapped in micropores
AU - Wang, Wei
AU - Song, Mo
PY - 2006/8/15
Y1 - 2006/8/15
N2 - Titania-containing SBA-15s were synthesized by impregnation of titanium isopropoxide in iso-propanol. X-ray diffraction, transmission electron microscopy, and N2 sorption measurements showed that the mesostructures are intact after impregnations. Raman and UV-vis DRS spectra proved the existence of small anatase TiO2 clusters (∼1.3 nm) after three loading cycles. Disappeared micropores and unchanged mesopore volumes after three loading cycles demonstrated that majority of micropores were consumed to immobilize these small titania clusters, which could provide a new way for the development mesoporous silica-supported titania.
AB - Titania-containing SBA-15s were synthesized by impregnation of titanium isopropoxide in iso-propanol. X-ray diffraction, transmission electron microscopy, and N2 sorption measurements showed that the mesostructures are intact after impregnations. Raman and UV-vis DRS spectra proved the existence of small anatase TiO2 clusters (∼1.3 nm) after three loading cycles. Disappeared micropores and unchanged mesopore volumes after three loading cycles demonstrated that majority of micropores were consumed to immobilize these small titania clusters, which could provide a new way for the development mesoporous silica-supported titania.
U2 - 10.1016/j.jnoncrysol.2006.03.067
DO - 10.1016/j.jnoncrysol.2006.03.067
M3 - Article
SN - 0022-3093
VL - 352
SP - 3153
EP - 3157
JO - Journal of Non-Crystalline Solids
JF - Journal of Non-Crystalline Solids
IS - 28-29
ER -