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Synthesis, characterization and phenol adsorption of carbonyl- functionalized mesoporous silicas

Title
Synthesis, characterization and phenol adsorption of carbonyl- functionalized mesoporous silicas
Authors
Thu P.T.T.Dieu H.T.Phi H.N.Viet N.N.T.Kim S.J.Vo V.
Ewha Authors
김성진
SCOPUS Author ID
김성진scopus
Issue Date
2012
Journal Title
Journal of Porous Materials
ISSN
1380-2224JCR Link
Citation
vol. 19, no. 3, pp. 295 - 300
Indexed
SCI; SCIE; SCOPUS WOS scopus
Abstract
Carbonyl-functionalized mesoporous silicas have been synthesized by co-condensation of tetraethoxysilane and varying contents of 3-(trimethoxysilyl)propyl methacrylate in acidic medium with the block copolymer Pluronic 123 as a structure directing agent. The functionalized materials were characterized by PXRD, TEM, SEM, IR, and N 2 adsorption-desorption at 77 K. Adsorption of phenol in aqueous solution on the materials has been investigated. The experimental results showed that carbonyl- functionalized mesoporous silicas possess strong adsorption ability for phenol with interaction of O-H...O = C hydrogen bond. The adsorption data are fitted to Langmuir Isotherms and a maximum adsorption capacity calculated from the Langmuir equation can reach 0.87 mmol of phenol/g. The effect of the pH on phenol adsorption has been studied. © Springer Science+Business Media, LLC 2011.
DOI
10.1007/s10934-011-9475-8
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자연과학대학 > 화학·나노과학전공 > Journal papers
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