Estudo da síntese da MCM-22 hierárquica utilizando tratamento de dessilicalização pós-síntese

Abstract

The study of the treatment of MCM-22P zeolite for hierarchical pore production was performed using basic post-synthesis treatment with NaOH solutions. The materials obtained during the study were analyzed by some techniques such as X-ray diffraction, X-ray fluorescence, and nitrogen sorption. The work was developed using statistical planning and varying the main interfering factors such as temperature (60 to 120 ° C), concentration (0.1 to 0.2 mol / L) and time (60 to 180 minutes). In general, the basic treatment did not significantly affect the crystallinity of the starting materials due to the presence of Structure Directing Agent in the structure. As a consequence, the obtained materials presented small alterations in the micro and mesoporous volume.