• 专利标题:   Preparation of hydrophobic membrane for oil-water separation by dissolving graphene oxide powder in water, adding zinc oxide nanowires to dispersion, suction filtering and vacuum drying.
  • 专利号:   CN112973466-A
  • 发明人:   LI C, ZHANG F, LI D, BAI L, QIAN H, SHEN J, QI Q, CHEN P
  • 专利权人:   NANJING POLYTECHNIC INST
  • 国际专利分类:   B01D017/022, B01D067/00, B01D069/12, C02F001/28, C02F001/44, C02F101/32
  • 专利详细信息:   CN112973466-A 18 Jun 2021 B01D-069/12 202166 Pages: 4 Chinese
  • 申请详细信息:   CN112973466-A CN11210357 02 Dec 2019
  • 优先权号:   CN11210357

▎ 摘  要

NOVELTY - Preparation of hydrophobic membrane comprises drying graphene oxide (GO) and zinc oxide (ZnO) nanowires at 323 K for 12 hours; dissolving 20 g GO powder in 50 mL deionized water, and ultrasonically treating for 30 minutes to form uniform GO dispersion; adding 5-20 wt.% ZnO nanowires to GO dispersion and ultrasonicating for 30 minutes to completely disperse nanowires and form uniform mixing system; with PVDF microfiltration membrane as base layer, suction filtering GO/ZnO nanowire mixture on membrane surface using vacuum filtration device; and vacuum drying at 313 K for 24 hours. USE - The method is used for preparing hydrophobic membrane for oil-water separation. ADVANTAGE - The film shows good permeability and high efficiency in oil-water separation performance.