Role of amphiphilic organic additives in design of silica materials with ordered mesoporous structure

被引:0
|
作者
Roik, Nadiia V. [1 ]
Dziazko, Marina O. [1 ]
Trofymchuk, Iryna M. [1 ]
Oranska, Olena I. [1 ]
机构
[1] NAS Ukraine, Chuiko Inst Surface Chem, 17 Gen Naumov Str, UA-03164 Kiev, Ukraine
关键词
MCM-41; Sol-gel synthesis; Mesoporous structure; Amphiphilic organic additives; Low-temperature nitrogen adsorption-desorption; x-ray diffraction; BETA-CYCLODEXTRIN; DRUG-DELIVERY; PORE-SIZE; NONIONIC SURFACTANT; MCM-41; MATERIALS; NANOPARTICLES; ADSORPTION; TEMPLATE; BROMIDE; TRANSPARENT;
D O I
10.1007/s10934-021-01167-0
中图分类号
O69 [应用化学];
学科分类号
081704 ;
摘要
Templated sol-gel synthesis of silica materials with hexagonally ordered mesoporous structure was realized in the presence of amphiphilic organic compounds (azo dyes, bile acid, cyclic oligosaccharide) as cosurfactants and alkoxysilane derivatives prepared on their basis as structure-forming silanes. The effect of auxiliary agents on mesoporous structure of resulting silicas was estimated by low-temperature nitrogen adsorption-desorption and x-ray diffraction analysis. It was found that introduction of moderate amounts of amphiphilic organic additives or their alkoxysilane derivatives in sol-gel reaction mixture causes formation of silica materials with higher surface area and more distinct long-range ordered pore system. Obtained results open up new opportunities for synthesis of MCM-41-type silica materials with improved structural characteristics.
引用
收藏
页码:317 / 330
页数:14
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