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Adsorption of lead from water by thiol-functionalized SBA-15 silicas

Title
Adsorption of lead from water by thiol-functionalized SBA-15 silicas
Authors
Thu P.T.T.Thanh T.T.Phi H.N.Kim S.J.Vo V.
Ewha Authors
김성진
SCOPUS Author ID
김성진scopus
Issue Date
2010
Journal Title
Journal of Materials Science
ISSN
0022-2461JCR Link
Citation
vol. 45, no. 11, pp. 2952 - 2957
Indexed
SCI; SCIE; SCOPUS WOS scopus
Abstract
Thiol-functionalized mesoporous silicas have been synthesized by co-condensation of tetraethoxysilane and varying contents of 3-mercaptopropyltrimethoxysilane in acidic medium with the block copolymer Pluronic 123 as a structure directing agent. Adsorption of lead in aqueous solution on the synthesized materials has been investigated. The adsorption data are fitted to Langmuir isotherms and a maximum adsorption capacity calculated from the Langmuir equation can reach 0.19 mmol of Pb/g. The stoichiometric ratio of S: Pb being 1:1 has been obtained for every adsorbent. The effect of the pH on lead adsorption, and desorption of lead on the lead-loaded materials have been studied. © 2010 Springer Science+Business Media, LLC.
DOI
10.1007/s10853-010-4288-8
Appears in Collections:
자연과학대학 > 화학·나노과학전공 > Journal papers
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