Synthesis of Mesoporous MCM-41 Materials with Low Power Microwave Heating Synthesis of Mesoporous MCM-41 Materials with Low Power Microwave Heating

Nalbant Asli, Ergün, Züleyha Kocabaş, Mustafa Baysal, Alp Yürüm, Yuda Yürüm, Yuda Yürüm, Nalbant Asli, Ergün, Züleyha Kocabaş, Mustafa Baysal, Alp Yürüm (+1 others)
unpublished
Crystalline, high surface area, hexagonal mesoporous MCM-41 having uniform pore sizes and good thermal stability was successfully synthesized at 90-120 o C in 30 minutes using low power microwave irradiation. This appears to be the first comprehensive and quantitative investigation of the comparatively rapid synthesis of mesoporous MCM-41 using low power microwave heating of 80W (90 o C) and 120W (120 o C). The influence of reaction temperature and the duration of heating were carefully
more » ... e carefully investigated and the calcined MCM-41 materials were characterized by XRD, SEM, TEM, nitrogen adsorption, TGA and FTIR. The mesoporous MCM-41 product synthesized in 30 minutes at 120W and calcined at 550 o C had a very high surface area of 1438 m 2 /g and was highly ordered, contained uniform pores with diameters in the range of 3.5-4.5 nm. The wall thickness of the materials highly depended on the power of the microwave energy used during the synthesis. Synthesis of the mesoporous MCM-41 products at 120 o C resulted with a structure having thinner walls. The mesoporous MCM-41 materials synthesized in the present work had good thermal stability.
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