▎ 摘　　要

Hierarchical zeolite Beta has been successfully synthesized by adding graphene oxide (GO) in the hydrothermal system and characterized by XRD, SEM and N-2 adsorption-desorption. The results show that the mesoporous distribution of the hierarchical zeolite Beta can be adjusted in the range of 3-7 nm and the meso-porosity can be varied by changing the type and content of GO. The formation of mesoporous structure in the zeolitic particles is from that the growth of crystalline is blocked in part by GO attached onto the zeolitic crystalline surface. Compared to spherical structure of GO nanopowders, laminar structure of GO nanosheets is propitious to increase the connectivity of the mesopores in the zeolite materials. (C) 2019 Elsevier B.V. All rights reserved.