• 专利标题:   Preparing metal ion cross-linked nano-film useful in e.g. water treatment field, by e.g. preparing hydrogel, continuously adding spreading solution to surface of freshly removed hydrogel, carrying out interfacial film-forming reaction, transferring nanomembrane to any solid surface, and drying.
  • 专利号:   CN116062742-A, CN116062742-B
  • 发明人:   ZHAO T, ZHOU C, ZHAO C, LIU M
  • 专利权人:   UNIV BEIHANG
  • 国际专利分类:   B82Y030/00, B82Y040/00, C01B032/198
  • 专利详细信息:   CN116062742-A 05 May 2023 C01B-032/198 202348 Chinese
  • 申请详细信息:   CN116062742-A CN10353920 06 Apr 2023
  • 优先权号:   CN10353920

▎ 摘  要

NOVELTY - Preparing a metal ion cross-linked nano-film comprises (1) preparing hydrogel, and swelling the prepared hydrogel to saturation in water, (2) soaking the swollen hydrogel to saturation in the aqueous solution of metal ions for a given time, and removing out, (3) immediately and continuously adding the spreading solution to the surface of the freshly removed hydrogel, where the spreading solution super spreads on the surface of the wet hydrogel, carrying out the interfacial film-forming reaction, completing the reaction, and obtaining nano-film on the surface of the hydrogel, and (4) transferring the nanomembrane to any solid surface, washing to remove excess metal ions, drying, and peeling off from the solid surface to obtain metal ion crosslinked nanomembrane. USE - The method is useful for preparing a metal ion cross-linked nano-film, which is useful in the fields of water treatment, ion/molecule separation, battery, capacitor, and confinement reaction (claimed). ADVANTAGE - The metal ion cross-linked nano-membrane has high stability, high degree of orientation, precise and controllable interlayer distance reaching Angstrom level, and has no obvious swelling in water, and consistent interlayer distance in the air. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for metal ion cross-linked nano-film.