• 专利标题:   Preparation of composite aerogel for adsorbing organic pollutant in water body, involves reacting e.g. phenol and formaldehyde, adding e.g. pore-forming agent, thermally polymerizing, dispersing e.g. obtained phenolic resin nanosheet and graphene oxide in water, reacting, dialyzing and freeze-drying.
  • 专利号:   CN116041775-A
  • 发明人:   LIU T, WU Y, LAN Q
  • 专利权人:   UNIV JIANGNAN
  • 国际专利分类:   B01J020/26, B01J020/28, B01J020/30, C02F001/28, C02F101/30, C08J009/28, C08K003/04, C08K005/17, C08L061/10
  • 专利详细信息:   CN116041775-A 02 May 2023 C08J-009/28 202348 Chinese
  • 申请详细信息:   CN116041775-A CN10160672 23 Feb 2023
  • 优先权号:   CN10160672

▎ 摘  要

NOVELTY - Preparation of graphene oxide/porous phenolic resin nanosheet composite aerogel involves (S1) reacting phenol, formaldehyde and sodium hydroxide solution at 60-90℃ for 0.5-2 hours to obtain resole phenolic resin, adding pore-forming agent and anhydrous ethanol to the phenolic resin, stirring at 70-80℃ for 48-60 hours to obtain deep red ethanol micelle dispersion, carrying out thermal polymerization reaction on ethanol micelle dispersion and glycerol to obtain phenolic resin nanosheet, and (S2) dispersing the phenolic resin nanosheet, a crosslinking agent and graphene oxide in water to obtain dispersion liquid, leaving still, reacting in a water bath at 80-120℃ for 24-36 hours to obtain composite hydrogel, dialyzing the composite hydrogel with water-alcohol mixed solution, vacuum-freeze-drying, acid-treating, dialyzing with water-alcohol mixed solution, and freeze-drying. USE - Preparation of graphene oxide/porous phenolic resin nanosheet composite aerogel used for adsorbing organic pollutants in water body (all claimed). ADVANTAGE - The method enables simple preparation of graphene oxide/porous phenolic resin nanosheet composite aerogel with excellent stable three-dimensional porous structure, and high specific surface area and chemical stability. The graphene oxide/porous phenolic resin nanosheet composite aerogel efficiently absorbs organic pollutants in water.