Synthesis of High-Quality MCM-41 Using Silica Fume as Silica Source

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Abstract:

The high-quality MCM-41 was synthesized from silica fume with Citric acid and cetyltrimethylammonium bromide (CTAB) as template agents. Silica fume entered into liquid system in silicate and matched with CTA+. Mesoporous phase formed with the help of Citric and PEG-6000 in an acidic process followed. The structure and morphology of mesoporous silica material so-prepared was investigated based on the analysis of X-ray diffraction (XRD), N2 sorption/desorption (BET) and transmission electron microscopy (TEM). The results indicated that MCM-41 was successfully prepared by substituting silica fume for the traditional silica source of tetraethyl orthosilicate, and the MCM-41 displayed high quality with the pore sizes 4.3 nm, the BET areas 1058 m2/g, the total pore volume 0.862 cm3/g.

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Advanced Materials Research (Volumes 734-737)

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2536-2540

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August 2013

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© 2013 Trans Tech Publications Ltd. All Rights Reserved

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