Abstract
MCM-41 particles were synthesized using inorganic raw materials and Cetyltrimethylammonium bromide (CTAB). The textural properties and structure of MCM-41 particles were characterized by X- ray diffraction (XRD), scanning electron microscope (SEM), transmission electron microscope (TEM) and N 2 adsorption-desorption methods. To study performance of Dubinin-Astak hov and Dubinin- Raduchkevic isotherm models in evaluating mesopore volume and pore size of MCM-41, the mesopore volume and pore size of several MCM-41 samples were calculated by means of the two- mentioned isotherm models and by utilizing N 2 adsorption isotherms and XRD data. The results were compared with the mesopore volume and pore size calculated by other methods. The results showed that the calculated mesopore volume and pore size on the samples with the fraction of mesopore volume > 0.9 had not good consistency with XRD data and the results obtained by other methods. However, the calculated mesopore volume and pore size on the samples with the fraction of mesopore volume ≤ 0.9 were in good agreement with XRD data and other advanced simulation techniques. .
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