Hierarchical ZSM-5 zeolites were successfully prepared with one-step hydrothermal method by adding MTES to the zeolite precursor. The mesoporous structure of zeolite was formed via organosilane interacts with nanoparticles to form a covalent bond of Si–R, and then the alkyl group was removed by calcination. The influence of methyltriethoxysilane on the mesopores, acidity, morphology of the zeolites, and the catalytic performance of the samples was investigated. A mesoporous size about 6.5 nm was formed in the sample, meanwhile, the Brønsted acid density of zeolite was decreased. The yield of the aromatic compound was increased by about 10% after the introduction of the mesoporous structure. The catalyst’s carbon deposition resistance was improved due to a significant decrease of the Brønsted acid density of zeolite, and the catalyst life (methanol conversion rate > 95%) was extended from 41 to 76 h.

通过将MTES添加到沸石前体中，通过一步水热法成功制备了分级ZSM-5沸石。沸石的介孔结构是通过有机硅烷与纳米粒子相互作用形成Si-R共价键，然后通过煅烧除去烷基。研究了甲基三乙氧基硅烷对介孔，酸度，沸石形态和样品催化性能的影响。样品中形成了约6.5nm的中孔尺寸，同时，沸石的布朗斯台德酸密度降低。引入中孔结构后，芳族化合物的产率提高了约10％。由于沸石的布朗斯台德酸密度显着降低，提高了催化剂的抗碳沉积性能，