Abstract
ABSTRACTMesoporous silicas functionalized with aminopropyl groups were synthesized by co-condensation of tetraethoxysilane (TEOS) and 3-aminopropyl triethoxysilane (APTES) and characterized by nitrogen adsorption-desorption measurements. The pore volume drastically decreased from about 900 mm3/g for the unfunctionalized mesoporous silica to about 300 mm3/g for the aminopropyl-functionalized mesoporous silica (1.65 mmol-NH2/g). This result was explained in terms of the surface density of the aminopropyl groups in the pore.
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