▎ 摘　　要

NOVELTY - A porous graphene/molecular sieve composite film acid catalyst is prepared by mixing aluminum source, silicon source, tetrapropyl ammonium hydroxide and deionized water to obtain molecular sieve precursor solution, uniformly mixing with graphene aqueous dispersion, continuously stirring to assemble reaction, washing precipitate, drying, dispersing in molecular sieve precursor solution, continuously stirring and secondary growth reacting to molecular sieve, washing, drying, sintering, placing into ammonium nitrate solution, stirring and ion exchanging, and secondary sintering. USE - Method for preparing porous graphene/molecular sieve composite film acid catalyst used in organic catalytic reaction (all claimed). ADVANTAGE - The product is recyclable, has high purity, strong mechanical performance, excellent catalytic performance in acid catalysis field, and has improved molecular sieve acidic strength, catalytic performance and cycle stability. The method is easy, simple, has high repeatability, and suitable for industrialization. DETAILED DESCRIPTION - A porous graphene/molecular sieve composite film acid catalyst is prepared by mixing aluminum source, silicon source, tetrapropyl ammonium hydroxide and deionized water to obtain molecular sieve precursor solution, uniformly mixing with graphene aqueous dispersion, continuously stirring to assemble reaction, washing precipitate, drying, dispersing in molecular sieve precursor solution, continuously stirring and secondary growth reacting to molecular sieve, washing, drying, sintering under air atmosphere, placing into ammonium nitrate solution, stirring and ion exchanging, and secondary sintering under air atmosphere.