Facile synthesis of hierarchical nanocrystalline ZSM-5 zeolite under mild conditions and its catalytic performance

► Hierarchical nanocrystalline ZSM-5 zeolite NZ5 was prepared under mild condition. ► Evaporation of solvent and addition of methylamine were vital to the preparation. ► NZ5 showed a long lifetime and a high anti-coking property in MTH reaction.