Synthesis and Characterization of Functionalized Mesoporous Silica
by Aerosol-Assisted Self-Assembly
Xiangling Ji
Qingyuan Hu
J. Eric Hampsey
Xuepeng Qiu
Lianxun Gao
Jibao He
Yunfeng Lu
10.1021/cm052764p.s001
https://acs.figshare.com/articles/journal_contribution/Synthesis_and_Characterization_of_Functionalized_Mesoporous_Silica_by_Aerosol_Assisted_Self_Assembly/3224626
An efficient, productive, and low-cost aerosol-assisted self-assembly process has been developed to
produce organically modified mesoporous silica particles via a direct co-condensation of silicate species
and organosilicates that contain nonhydrolyzable functional groups in the presence of templating surfactant
molecules. Different surfactants including cetyltrimethylammonium bromide, nonionic surfactant Brij-56, and triblock copolymer P123 have been used as the structure-directing agents. The organosilanes
used in this study include tridecafluoro-1,1,2,2-tetrahydrooctyltriethoxysilane, methytriethoxysilane,
vinyltrimethoxysilane, and 3-(trimethoxysilyl)propyl methacrylate. X-ray diffraction and transmission
electron microscopy studies indicate the formation of particles with various mesostructures. Fourier
transform infrared and solid-state nuclear magnetic resonance spectra confirm the organic ligands are
covalently bound to the surface of the silica framework. The porosity, pore size, and surface area of the
particles were characterized using nitrogen adsorption and desorption measurements. This method provides
a direct synthesis route to efficiently synthesize a large variety of organic functionalized mesoporous
silica particles with controlled pore sizes, pore surface chemistry, and pore structures for catalyst, filler,
and other applications.
2006-05-02 00:00:00
surface area
templating surfactant molecules
synthesis route
resonance spectra
transmission electron microscopy studies
pore surface chemistry
functionalized mesoporous silica particles
silicate species
triblock copolymer P 123
pore size
Functionalized Mesoporous Silica
Different surfactants
desorption measurements
mesoporous silica particles
pore structures
pore sizes
cetyltrimethylammonium bromide
nitrogen adsorption
silica framework