• 专利标题:   Self-supporting two-dimensional film useful in membrane separation, comprises film-forming material stacked to film, where film-forming material comprises graphene oxide or MXene.
  • 专利号:   CN113213467-A, CN113213467-B
  • 发明人:   LONG Q, LIU Z, CHEN J, WANG Y
  • 专利权人:   UNIV GUANGZHOU, UNIV GUANGZHOU
  • 国际专利分类:   B01D061/02, B01D071/02, C01B021/082, C01B032/198, C01B032/90
  • 专利详细信息:   CN113213467-A 06 Aug 2021 C01B-032/198 202177 Chinese
  • 申请详细信息:   CN113213467-A CN10528342 14 May 2021
  • 优先权号:   CN10528342

▎ 摘  要

NOVELTY - Self-supporting two-dimensional film comprises film-forming material stacked to film, where the film-forming material comprises graphene oxide or MXene, and the thickness of self-supporting two-dimensional film is 0.2-5 mu m. USE - Self-supporting two-dimensional film useful in membrane separation, such as nanofiltration (claimed). ADVANTAGE - The self-supporting two-dimensional film realizes excellent filtering function, determines the thickness of self-supporting two-dimensional membrane by amount of film-forming material filtered, controls the film-forming material by controlling amount of film-forming material, and realizes the control of film thickness. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a method of preparing the self-supporting two-dimensional film, involving (a) preparing precursor dispersion and film-forming material dispersion, (b) filtering obtained precursor dispersion liquid by substrate filter membrane to form composite film with surface covered with precursor layer, and (c) filtering film-forming material dispersion liquid by composite membrane, drying and stripping to obtain self-supporting two-dimensional film.