▎ 摘　　要

NOVELTY - Hydrophobic adsorbent based on graphene oxide prepared by (i) preparing graphene oxide: taking natural graphite, sodium nitrate, potassium permanganate and concentrated sulfuric acid and stirring in ice bath and oil bath, (ii) separating and purifying mixed liquid and performing dialysis, (iii) modifying prepared graphene oxide: adding cross-linking agent functional amide monomer and fluorine-containing monomer into mixed liquid and freeze drying, and (iv) adding modified graphene oxide into mold, placing into freeze drying box for freezing and drying to obtain the adsorbent, is claimed. USE - Used as hydrophobic adsorbent based on graphene oxide. ADVANTAGE - The adsorbent: is fluffy and porous adsorbent; and has large specific surface area, low density and stable structure. The method: has simple preparation process; and is easy to control. DETAILED DESCRIPTION - Hydrophobic adsorbent based on graphene oxide prepared by (i) preparing graphene oxide: taking raw natural graphite, sodium nitrate, potassium permanganate and concentrated sulfuric acid, respectively stirring to complete oxidation experiment in 3-8 degrees C ice bath and 35-90 degrees C oil bath, (ii) separating and purifying mixed liquid through centrifuge and dialysis until solution pH close to neutral, (iii) modifying prepared graphene oxide: adding cross-linking agent functional amide monomer and fluorine-containing monomer into the mixed liquid, freeze drying at 50-80 degrees C oil bath and reacting for 2-8 hours, and (iv) adding modified graphene oxide into mold, subjecting to ultrasound for 30-60 minutes, placing into freeze drying box for freezing and drying to obtain hydrophobic adsorbent.