FABRICATION OF MESOPOROUS WITHIN ZEOLITE Y USING MIXED TEMPLATES

Mesoporous zeolite Y was prepared using a block copolymerand hexadecyltrimethyl ammonium bromide as mixed templates. Copolymer−ionic surfactant complexes were formed and grafted into aluminosilicate gel, introducing mesoporous into zeolite. The XRD results indicated the mesoporous sample showed high crystalline and hydrothermal stability indicating a negligible damaging effect on the framework. Nitrogen adsorption and desorption results of mesoporous zeolite showed the uniform property of mesopore size distribution in the range of 2.0-5.0 nm with a greater surface area (630 m2 g -1 ), mesopore volume (0.324 cm3 g -1 ), and mesopore area (99 m2 g -1 ). A novel method was provided to develop an available mesoporosity.