• 专利标题:   Preparing graphene nano-porous film useful for textile spinning, medicine, and sewage treatment, comprises e.g. thermally reducing graphene oxide, oxidizing by manganese(II) sulfate and hydrogen peroxide, and vacuum pumping and filtering.
  • 专利号:   CN113304624-A
  • 发明人:   OU J, YAO H, YU H, ZHOU H, CHENG Y, REN B, CHEN G, YI Q, XIE H, CHEN K
  • 专利权人:   SICHUAN HENGRUI TIANCHENG TECHNOLOGY CO LTD
  • 国际专利分类:   B01D071/02, B01D069/02, B01D069/12, B01D067/00, C02F001/44, C02F101/30
  • 专利详细信息:   CN113304624-A 27 Aug 2021 B01D-071/02 202176 Pages: 12 Chinese
  • 申请详细信息:   CN113304624-A CN10612126 02 Jun 2021
  • 优先权号:   CN10612126

▎ 摘  要

NOVELTY - Preparing graphene nano-porous film comprises: (i) thermally reducing graphene oxide to obtain hydrogen-terminated graphene oxide (HTGO), and orderly oxidizing HTGO by manganese(II) sulfate and hydrogen peroxide to obtain few-layer graphene oxide (FLGO); (ii) respectively preparing FLGO and graphene oxide slurry into dispersion liquid, and ultrasonically mixing dispersion liquids to obtain mixed solution; where the mass ratio of FLGO to graphene oxide in mixed solution is 1-7:1; and (iii) adding de-ionized water into mixed solution, ultrasonically processing for 10 minutes, and vacuum pumping and filtering. USE - The method is useful for preparing graphene nano-porous film, which is useful for textile spinning, medicine, and sewage treatment (all claimed). ADVANTAGE - The graphene nano-porous film has high dye removing rate and high water flux, and has thickness of 0.218-1.09 mu m. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for graphene nano-porous film, prepared by above method.