▎ 摘　　要

NOVELTY - Hydrophobic and superoleophilic material comprises a composite of an exfoliated fluorinated graphene and a metal organic framework-MIL-101(Fe) coated on a substrate. The material has a water contact angle in the range of 125-135°, a sorption capacity is in the range of 1.5-4 g/g, and a surface energy is less than 16.5 mJ/m2. USE - Hydrophobic and superoleophilic material. ADVANTAGE - The hydrophobic and superoleophilic material has higher selectivity of oil sorption and high absorption capacity, lower surface energy, hydrophobic pores, and higher chemical stability; and can be reused and recycled. The method for the preparation of the hydrophobic and superoleophilic material is simple, economical, and efficient and does not need expensive reagents. The hydrophobic and superoleophilic material provides excellent selectivity towards oil sorption and excellent reusability. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a method for preparing a hydrophobic and superoleophilic material having a water contact angle in the range of 125° to 135°, which involves: a) dissolving a pre-determined amount of ferric chloride and a pre-determined amount of a first acid in a first fluid medium under stirring at a first predetermined temperature for a first predetermined time period to obtain a solution; b) cooling the solution to a temperature in the range of 20-50°C to obtain a precipitate, followed by washing the precipitate with at least one alcohol to obtain a washed precipitate; c) drying the washed precipitate at a second predetermined temperature for a second predetermined time period to obtain a metal organic framework MIL-101(Fe); d) separately, dispersing a predetermined amount of a fluorinated graphene (FG) in a second fluid medium under sonication at a third predetermined temperature for a third predetermined time period to obtain a suspension; e) allowing the suspension to maintain for a fourth predetermined time period, followed by collecting a predetermined amount of a supernatant comprising an exfoliated multi-layered fluorinated graphene; f) mixing a predetermined amount of a second acid in a third fluid medium to obtain an acidic solution; g) separately, mixing a predetermined amount of an anhydrous ferric chloride in a fourth fluid medium to obtain a ferric chloride solution; h) adding the obtained acidic solution and the obtained ferric chloride solution in the supernatant comprising an exfoliated multi-layered fluorinated graphene under stirring at a fourth predetermined temperature for a fifth predetermined time period to obtain a reaction mixture; i) cooling the reaction mixture to a temperature in the range of 20°C to 50°C to obtain a precipitate; j) filtering and drying the precipitate to obtain a composite of an exfoliated fluorinated graphene and a metal organic framework-MIL-101(Fe); and k) coating the composite of the exfoliated fluorinated graphene and the metal organic framework-MIL-101(Fe) on a substrate to obtain the hydrophobic and superoleophilic material.