• 专利标题:   Preparing superhydrophobic silanized graphene aerogel for removing organic pollutants by adsorption, involves dispersing graphene oxide in water to obtain graphene oxide aqueous dispersion, and centrifuging after adding ethanol in the graphene oxide aqueous dispersion.
  • 专利号:   CN114368746-A, CN114368746-B
  • 发明人:   ZHANG S, LAI D, ZHU Y, CHE C, LIU L, KONG G
  • 专利权人:   GUANGZHOU SPECIAL PRESSURE EQUIP INSPECT, UNIV SOUTH CHINA TECHNOLOGY
  • 国际专利分类:   B01J020/20, B01J020/28, B01J020/30, C01B032/198
  • 专利详细信息:   CN114368746-A 19 Apr 2022 C01B-032/198 202254 Chinese
  • 申请详细信息:   CN114368746-A CN10047427 17 Jan 2022
  • 优先权号:   CN10047427

▎ 摘  要

NOVELTY - Preparing superhydrophobic silanized graphene aerogel involves dispersing graphene oxide in water to obtain graphene oxide aqueous dispersion, centrifuging after adding ethanol in the graphene oxide aqueous dispersion, and replacing the water in the graphene oxide aqueous dispersion with ethanol to obtain the graphene oxide alcohol dispersion. The hydrolysis of silane is carried out under acidic conditions to obtain a silane hydrolysis solution. The graphene oxide alcohol dispersion and the silane hydrolysis solution are mixed, added a reducing agent, and then heated the temperature to 60-100degrees Celsius for a constant temperature of 4-12 hours, then dialysis, freeze-dried and annealed are then performed to obtain the superhydrophobic silanized graphene aerogel. USE - Method for preparing superhydrophobic silanized graphene aerogel for removing organic pollutants by adsorption (claimed). ADVANTAGE - The prepared superhydrophobic silanized graphene aerogel has the advantages of excellent mechanical properties, excellent adsorption properties, superhydrophobicity, abundant internal porous structure, good resilience, good oil-water separation selectivity, etc., and the preparation method is simple and the preparation conditions are mild and has low production cost, is suitable for large-scale industrial production, and has broad application prospects in the field of organic pollutant adsorption.