Mesostructured Y zeolite from NaY with low Si/Al by one-step method based on bifunctional surfactant

Hierarchical zeolite Y prepared by sequential acid washing and alkaline treatment in the presence of surfactant micelles, has been emerging as one of the most promising approach to introduce controlled mesoporosity into zeolite Y crystals. However, the synthesis of mesostructured Y by a simple procedure still remains a challenge. Herein, the goal was achieved by designing of a low-cost surfactant [(CH3O)3SiC3H6N(CH3)2C16H37]Cl (denoted as “TPHAC”). In this strategy, dealumination arose from coordination of -Si-(OH)3 (product of hydrolysis of THPAC) with framework aluminum ions and controlled mesoporosity was introduced into zeolite crystals through a surfactant approach, which exhibits a potential way to synthesize mesoporous Y zeolite from NaY with low Si/Al.