Synthesis of Novel Mesoporous Silica Twist Nanofibers Through Co-condensation Method

doi:10.3969/j.issn.0251-0790.2012.08.002

Abstract

Abstract:

Novel mesoporous silica nanofibers(MSNF) were synthesized through co-condensation method, in which two organoalkoxysilanes, tetraethoxylsilane (TEOS) and 3-mercaptopropyl trimethoxysilane(MPTMS) as silica precursors simultaneously. The microstructure and porous character of the MSNF were characterized by scanning electron microscopy(SEM), transmission electron microscopy(TEM), small-angle X-ray diffraction(XRD) and nitrogen sorption measurements. The results show that the single-axis-twist fibers with diameters of ca. 60-80 nm are obtained. The mesostructure of MSNF corresponds with that of MCM-41 and periodic mesopores fringes are 120 nm. The BET surface area and BJH pore size of the samples are 784 m²/g and 2.36 nm, respectively.

Key words: Mesoporous silica, Fiber, 3-Mercaptopropyl trimethoxysilane, Co-condensation

CLC Number:

O613.72

TrendMD:

CHEN Xi, CAI Qiang, SUN Lin-Hao, SHI Wei-Lin, QI Juan-Juan, WANG Song. Synthesis of Novel Mesoporous Silica Twist Nanofibers Through Co-condensation Method[J]. Chem. J. Chinese Universities, 2012, 33(08): 1643.

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Synthesis of Novel Mesoporous Silica Twist Nanofibers Through Co-condensation Method

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