▎ 摘　　要

NOVELTY - Macroporous structure based graphene oxide/boric acid-based metal organic framework/polyurethane adsorbents, is claimed. USE - The macroporous structure based graphene oxide/boric acid-based metal organic framework/polyurethane adsorbents is useful for efficient and selective adsorption and separation of aqueous luteolin (LTL) (claimed). ADVANTAGE - The adsorbent has good thermal stability, high adsorption capacity, acid-alkali absorbing/releasing function and significant luteolin (LTL) molecular recognition property (claimed). DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for preparing the macroporous structure based graphene oxide/boric acid-based metal organic framework/polyurethane adsorbent comprising (i) preparing graphene oxide; (ii) allowing the growth of graphene oxide on boric acid-based metal organic framework (GOMOF (C)), where the GOMOF (C) is prepared by uniformly mixing graphene oxide, 3-carboxyphenylboronic acid, trimesic acid, zinc nitrate hexahydrate and N,N-dimethylformamide in a reaction kettle, then subjecting to ultrasonic dispersion and washing many times with dimethylformamide solution and vacuum drying, to obtain GOMOF (C); and (iii) preparing graphene oxide/boric acid-based metal organic framework/polyurethane adsorbent (PUGOMOF (C)) by uniformly mixing GOMOF (C) and polyurethane foam, adding absolute ethanol in a reaction flask, subjecting to ultrasonic dispersion and stirring uniformly and washing many times with ethanol and vacuum drying, to obtain PUGOMOF (C).