• 专利标题:   Preparation of metal ion-adsorbed sewage separation membrane involves modifying graphene oxide with polyphenolic compound, reacting with polyvinylidene fluoride and pore-forming agent, pouring on flat plate, curing, washing, and drying.
  • 专利号:   CN108404686-A
  • 发明人:   WU L, SUN Q, WANG G, WANG X, LI M
  • 专利权人:   UNIV WUHAN TECHNOLOGY
  • 国际专利分类:   B01D067/00, B01D069/02, B01D071/34, B01J020/20, B01J020/30, C02F001/28, C02F001/44
  • 专利详细信息:   CN108404686-A 17 Aug 2018 B01D-071/34 201867 Pages: 8 Chinese
  • 申请详细信息:   CN108404686-A CN10426980 07 May 2018
  • 优先权号:   CN10426980

▎ 摘  要

NOVELTY - Preparation of metal ion-adsorbed sewage separation membrane comprises dispersing graphene oxide ultrasonically in deionized water, adding polyphenolic compound, stirring uniformly to react, separating solid and liquid to obtain polyphenol-modified graphene oxide, dispersing in first organic solvent, adding polyvinylidene fluoride and pore-forming agent, stirring sufficiently to obtain casting solution, pouring obtained casting solution on flat plate to obtain film, placing into second solution for curing, taking out cured material, washing, and drying. USE - Method preparing metal ion-adsorbed sewage separation membrane. ADVANTAGE - The separation membrane can be used repeatedly and avoids secondary pollution.