Rapid Synthesis of Phenyl-Functionalized Mesoporous Silica Using as a Highly Efficient Fiber Coating of Solid-Phase Microextraction

A rapid synthesis of highly ordered phenyl-functionalized MCM-41 (Phen-MCM-41-R) mesoporous silica was performed by using cetyltrimethylammonium bromide as the template and tetraethyl orthosilicate as the silica source under alkaline conditions within 3 h. The samples were characterized by fourier transform infrared (FTIR) spectra, small-angle X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), N-2 adsorption-desorption, and thermogravimetric analysis (TGA). It has been found that the resultant material still preserves a desirable two-dimensional P6mm hexagonal structure and has large specific surface area, large pore volume, and good thermal stability. High extraction efficiency of dibutyl phthalate (DBP) is obtained using the phenyl-MCM-41-R as a fiber coating of solid-phase microextraction. Three hours for the self-assembly step is enough during the process of synthesis and has no unfavorable effect on the extraction behavior of phenyl-MCM-41-R as a mesoporous fiber coating.