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Self‐assembled highly ordered ethane‐bridged periodic mesoporous organosilica and its application in HPLC
Author(s) -
Huang Lili,
Lu Juan,
Di Bin,
Feng Fang,
Su Mengxiang,
Yan Fang
Publication year - 2011
Publication title -
journal of separation science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.72
H-Index - 102
eISSN - 1615-9314
pISSN - 1615-9306
DOI - 10.1002/jssc.201100103
Subject(s) - mesoporous material , mesoporous organosilica , scanning electron microscope , chemical engineering , chemistry , high performance liquid chromatography , dispersity , sorption , fourier transform infrared spectroscopy , transmission electron microscopy , chromatography , materials science , organic chemistry , adsorption , mesoporous silica , catalysis , engineering , composite material
Monodisperse spherical periodic mesoporous organosilicas (PMOs) with ethane integrated in the framework were synthesized and their application as stationary phase for chromatographic separation is demonstrated. The ethane‐PMOs were prepared by condensation of 1,2‐bis(triethoxysilyl)ethane (BTSE) in basic condition using octadecyltrimethylammonium chloride (C 18 TMACl) as template and ethanol as co‐solvent. The morphology and mesoporous structure of ethane‐PMOs were controlled under different concentrations of sodium hydroxide (NaOH) and EtOH. The results of scanning electron microscopy (SEM), transmission electron microscopy (TEM), powder X‐ray diffraction (XRD), nitrogen sorption measurement, Fourier transform infrared spectroscopy (FT‐IR) and elemental analysis showed that ethane‐PMOs have spherical morphology, uniform particle distribution, highly ordered pore structure, high surface area and narrow pore‐size distribution. The column packed with these materials exhibits good permeability, high chemical stability and good selectivity of mixtures of aromatic hydrocarbons in normal phase high‐performance liquid chromatography (HPLC).