Functionalized Mesoporous Silica with Very Large Pores for Cellulase Immobilization
By S. B. Hartono, S. Qiao, Jian Liu, K. Jack, B. Ladewig, Z. Hao, G. Lu. 2010
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Organo-functionalized FDU-12 type silicas exhibiting large pore sizes and ordered mesoporous structures were synthesized at low reaction (15 °C) and high hydrothermal (160 °C) temperatures via the co-condensation of tetraethoxysilane (TEOS) with a suite of organosilanes, i.e., 3-aminopropyltriethoxysilane (APTES), 3-mercaptopropyltrimethoxysilane (MPTMS), vinyltrimethoxysilane (VTMS), and phenyltrimethoxysilane (PTMS), in the presence of structure directing micelles formed using the surfactant pluronic F127 and the pore enlarging reagent trimethylbenzene (TMB). Small-angle X-ray scattering (SAXS) and transmission electron microscopy (TEM) confirmed that all synthesized materials possessed a face-centered cubic mesostructure (space group Fm3m), while nitrogen sorption analyses showed that the synthesized materials had extra large pores with cavity sizes of up to 25.4 nm and entrance sizes of up to 10.8 nm. X-ray photoelectron spectroscopy (XPS) and 13C solid-state magic-angle spinning nuclear magnetic res...
Subfields: Electrical and Electronic Engineering, Materials Chemistry, Molecular Biology
View Paper: https://www.semanticscholar.org/paper/536b81b3c8ad606171e6d2f85d5939311c94b759
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Citations in the corpus
- Enzyme immobilization by adsorption: a review (2014, background): “Other trialkylsilanes used as carrier modifiers include n-octyltriethoxysilane (Zheng et al. 2012), phenyltrimethoxysilane, vinyltrimethoxysilane (Hartono et al. 2010) and [3-(trimethoxysilyl)propyl] octadecyl dimethyl ammonium chloride (Tran et al. 2012).”