SBA-15 silicas containing sucrose |
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Authors: | M Barczak M Oszust-Cieniuch P Borowski Z Fekner E Zi?ba |
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Institution: | 1. Faculty of Chemistry, Maria Curie-Sklodowska University, Maria Curie-Sklodowska Sq. 3, 20-031, Lublin, Poland 2. Department of Zoology and Ecology, SEM Laboratory, Catholic University of Lublin, Krasnicka St. 102, 20-718, Lublin, Poland
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Abstract: | Mesoporous silicas were synthesized by condensation of tetraethoxysilane (TEOS) in the presence of Pluronic P123 as a structure-forming agent, and sucrose as an auxiliary agent, to investigate the effect of sucrose and aging temperature on the final properties, particularly structure-adsorption characteristics. Obtained materials have been characterized by XRD, nitrogen sorption measurements SEM-EDX, TEM, thermogravimetry, and FT-IR. The obtained materials have well-developed porous structure??values of the specific surface area (S BET) are in the range of 300?C950?m2/g and the sizes of primary mesopores are in the range of 9?C11?nm. It was established that S BET and ordering significantly decreases with an increasing content of sucrose in the initial mixture. |
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