Research on Preparation of Mesoporous Zeolite by Template Method

Abstract

In this paper, the preparation of mesoporous zeolite by template method is studied that the mesoporous zeolite is made up of pure silica source and pure aluminum source. The synthesis mechanism of mesoporous zeolite is investigated according to the characterization results of FTIR, SEM and N2 adsorption-desorption. The results shows that the water glass and sodium aluminate as the partial raw materials of synthesis process, P123 as the template, reaction at 42°C for 20h, aging at 54°C for 48 h, calcining at 550°C for 5 h. The average pore size of prepared mesoporous zeolite is 6.4nm and the specific surface area is 394.65m2/g. The FTIR shows that the microstructure of the prepared samples is similar to zeolite ore, and the SEM result indicates that the micromorphology of the product is uniform and pore size is within the mesoporous range.