“…Ideally, the multistage pore structure is a crystalline open frame with a stable aluminosilicate like zeolite and ordered multistage pores, micropores, and mesoporous pores composed to form a zeolite crystal frame structure. 2,12,13 However, disordered and unconnected multistage pore structures are often formed by the soft template method or acid-base treatment. 14 In these micro-mesoporous structures, zeolite materials with different pore sizes arranged on the core and shell have also received increasing attention due to their catalytic and separation advantages.…”