The synthesis of Al-MCM-41 from Volclay - a low-cost Al and Si source
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Autor:
Adjdir, M / Ali-Dahmane, T. / Friedrich, F. / Scherer, T. / Weidler, P.G. (2009)
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Quelle:
Applied Clay Science, 46 (2009), 2, 185-189
- Datum: 2009
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Adjdir, M / Ali-Dahmane, T. / Friedrich, F. / Scherer, T. / Weidler, P.G. (2009): „The synthesis of Al-MCM-41 from Volclay - a low-cost Al and Si source“ In: Applied Clay Science, 46 (2009), 2, 185-189
Abstract
The alkaline fusion of volclay (a low-cost sodium exchanged smectite) was used as source to generate the Si and Al components which were effectively transformed into mesoporous Al-MCM-41 depending on hydrothermal condition. The Al-MCM-41 materials were investigated by powder X-ray diffraction (XRD), N-2 adsorption-desorption measurements and both scanning electron microscopy (SEM) and environmental scanning electron microscopy (ESEM).
The volclay which converted into a silicon and an aluminium source allowed the formation of well ordered mesoporous Al-MCM-41 materials with high aluminium content (roughly 4 times higher than a Al-MCM-41 produced by a standard method). a high specific surface area (1060 m(2)/g). a pore volume of 0 8 cm(3)/g (for pore width <7.1 nm) with in mono-modal pore distribution with a maximum in the mesoporous pore size of 3.8 nm in pore width.
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The volclay which converted into a silicon and an aluminium source allowed the formation of well ordered mesoporous Al-MCM-41 materials with high aluminium content (roughly 4 times higher than a Al-MCM-41 produced by a standard method). a high specific surface area (1060 m(2)/g). a pore volume of 0 8 cm(3)/g (for pore width <7.1 nm) with in mono-modal pore distribution with a maximum in the mesoporous pore size of 3.8 nm in pore width.
Download [PDF]