These properties were shown to be strongly affected by properties of the SBA-15 host material and by the final carbonization temperature. Three SBA-15 samples were prepared from tetraethyl orthosilicate (TEOS) at different hydrothermal synthesis temperatures: 60, 100 and 140掳C in order to obtain ...
15 样品的介孔孔道中 4 3 3 1 高等学校化学学报 Vol 28 Table 1 Physical properties of SBA-15,APS-SBA-15 and Cu(!)-0-APS-SBA-15 Sampie Ceii parameter / nm BET surface area / (m 2 ・ g - 1 ) Pore voiume / (cm 3 ・ g - 1 ) Pore d ameter ! / nm SBA 15 12. 4 ...
Thestructureandpropertiesofthephenyl-modifiedmesoporousmolecularsieveandthesulphonatedproduct ( HSO 3 -Ph-SBA-15 ) werecharacterizedbyXRD , TEM , MASNMR , IRandUV-Vistechni ues.ThePh- SBA-15andHSO 3 -Ph-SBA-15featuredwell-orderedhexagonalarraysofmesoporesandtheporechannelswere similartothoseinpureSBA...
(2N-SBA-15),triamino(3N-SBA-15)werepreparedbyonepotsynthesismethodand ahydrothermalpostgraftingmethodusingTEOSassilicasourceandtriblock poly(ethyleneoxide)-b-poly(propyleneoxide)-b-poly(ethyleneoxide)copolymer PluronicP123astemplate,respectivelywith(3-Aminopropyl)triethoxysilane (APTES)、N-3-(Trimethoxysily)...
andsynthesisprocessoptimization,there— centprogressofmodificationandapplicationincatalysisfieldofmesoporoussilicaSBA-15wasreviewedintermsof f0uraspects:organicgroupsmodifiedSBA-15catalysts,acidmodifiedSBA-15catalysts,metalmodifiedSBA-15cata— lystsandmetalcompoundsmodifiedSBA-15catalysts.Theresearchandapplicationofthis...
Generally, to increase the efficiency of NSPs and improve their surface properties, their surface structure is treated with chemical agents called SCAs before use29. For surface modification, there are two general methods called post-grafting and one-pot co-condensation (direct synthesis), in the ...
Without significant changes in the structural and textural properties of the support, only the densification of the channel walls is evidenced. According to the alkali metal used, the order established by the total number of sites obtained is: Li-SBA-15 ≫ K-SBA-15 ≈ Cs-SBA-15, while ...
“Fluorescence properties of riboflavin-Functionalized mesoporous silica SBA-15 and riboflavin solutions in presence of different metal and organic cations.” Journal of Physics and Chemistry of Solids, vol. 85, 2015, pp. 56–61., doi:10.1016/j.jpcs.2015.04.007. Skorupska, Ewa, et al. “NMR...
WSBA15 分子筛催化剂对环己烯环氧化反应具有较高的催化活性. 关键词 : WSBA15 介孔分子筛 , 钨酸钠 , 钨酸 , 环己烯 , 环氧化反应 中图分类号: O643 文献标识码 : A Direct Synthesis of WSBA15 Mesoporous Molecular Sieves and Their Catalytic Performance for Epoxidation of Cyclohexene CHEN Yangying ,...
El-Nahhal, I. M.; Salem, J. K.; Tabasi, N. S.; Hempelmann, R.; Kodeh, F. S., Synthesis and structural characterization of ZnO-and CuO-NPs supported mesoporous silica materials (hexagonal SBA-15 and lamellar-SiO2). Chem. Phys. Lett. 2018, 691, 211-218....