[KSCI] Korea Science Citation Index Service

http://dx.doi.org/10.5012/bkcs.2006.27.3.399

Porous Organic-inorganic Hybrids for Removal of Amines

Cho, Sung-Youl (Department of Chemistry, Yonsei University)
Kim, Na-Ri (Department of Chemistry, Yonsei University)
Cao, Guozhong (Department of Materials Science and Engineering, University of Washington)
Kim, Joong-Gon (Biotechnology Division, Hanwha Chemical R&D Center)
Chung, Chan-Moon (Department of Chemistry, Yonsei University)

Publication Information

Bulletin of the Korean Chemical Society / v.27, no.3, 2006 , pp. 399-402 More about this Journal

Abstract

Porous organic-inorganic hybrids have been prepared from tetraethylorthosilicate (TEOS) and organosilane precursors by sol-gel method. Two organosilanes, 3-(2,4-dinitrophenylamino)propyltriethoxysilane (DNPTES) and N-[[(2-nitrophenyl)methoxy]carbonyl]-3-triethoxysilylpropylamine (NPTES) were used to incorporate electron-accepting (di)nitrophenyl groups into the hybrids. The hybrids were characterized by FT-IR spectroscopy and elemental analysis, and their pore characteristics were studied by nitrogen sorption porosimetry. Surface area of the hybrids ranged from 563 to 770 $m^2$ /g, pore volume, 0.23-0.30 $cm^3$ /g, and porosity, 35-41%. It was demonstrated by UV-vis spectroscopy that aniline, ethylenediamine, and 1-aminonaphthalene could be removed from their hexane solutions in the presence of the hybrid powders. The removal of amines is attributable to donor-acceptor interaction between the electron-donating amines and electron-accepting (di)nitrophenyl moiety.

Keywords

Porous hybrid; Sol-gel; Amine removal; Donor-acceptor interaction;

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