• 专利标题:   Manufacture of water purification membrane for purifying contaminated water e.g. wastewater, involves electrospinning polymers into nanofibers, crosslinking nanofibers to form membrane, oxidizing pyrrole monomers, depositing nanoparticles on membrane and washing.
  • 专利号:   WO2022040790-A1
  • 发明人:   XING M, LIU Y, CHEN S
  • 专利权人:   UNIV MANITOBA
  • 国际专利分类:   B01D067/00, C02F001/40, C02F001/58, C08J003/24, C08J005/18, C08J007/04, C08L029/04
  • 专利详细信息:   WO2022040790-A1 03 Mar 2022 B01D-067/00 202224 Pages: 55 English
  • 申请详细信息:   WO2022040790-A1 WOCA051171 24 Aug 2021
  • 优先权号:   US069859P

▎ 摘  要

NOVELTY - Manufacture of water purification membrane involves electrospinning polymers into nanofibers, crosslinking the nanofibers to form a membrane, oxidizing pyrrole monomers, depositing nanoparticles on the membrane and washing the membrane. The polymers are selected from PVA, poly(N-isopropylacrylamide) (PNIPAM), poly(vinylidene fluoride) (PVDF), poly(methacrylic acid) (PMAA), and poly(acrylic acid) (PAA). USE - Manufacture of water purification membrane used for purifying and desalinating contaminated water e.g. wastewater, salt water or contaminated water from industrial process (all claimed) to freshwater. ADVANTAGE - The method produces water purification membrane having excellent mechanical robustness, anti-fouling property, low oil adhesion, durability, solar absorption and super hydrophilic/underwater superoleophobic wettability. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are included for the following: (1) method for purifying contaminated water, which involves flowing the contaminated water through a membrane and purifying the water; and (2) method for desalinating salt water, which involves flowing salt water through a membrane, exposing to sunlight of at least one solar wavelength, converting water to steam, condensing the steam, and recovering the desalinated water.