▎ 摘　　要

NOVELTY - Preparation of MFI molecular sieve/graphene nanosheet composite material involves uniformly mixing MFI molecular sieve and a structural directing agent (I) in an alkaline environment, adding graphene oxide dispersion liquid, magnetically stirring at 50-80 degrees C for 2-24 hours, adjusting pH of the resultant solution to 11-13, performing hydrothermal reaction at 100-190 degrees C for 24-240 hours, washing the resultant reaction product with water, centrifuging, and drying. USE - Preparation of MFI molecular sieve/graphene nanosheet composite material (claimed). ADVANTAGE - The method enables efficient preparation of MFI molecular sieve/graphene nanosheet composite material. The MFI molecular sieve can be coordinated with the graphene nanosheets. The graphene nanosheets promote the crystallization of the MFI molecular sieves. DETAILED DESCRIPTION - Preparation of MFI molecular sieve/graphene nanosheet composite material involves uniformly mixing MFI molecular sieve and a structural directing agent of formula (I) in an alkaline environment, adding graphene oxide dispersion liquid, magnetically stirring at 50-80 degrees C for 2-24 hours, adjusting pH of the resultant solution to 11-13, performing hydrothermal reaction at 100-190 degrees C for 24-240 hours, washing the resultant reaction product with water, centrifuging, and drying.