• 专利标题:   Preparing carbon nitride-loaded graphene-based flexible fiber by adding carbon nitride soluble precursor to graphene oxide solution, injecting mixed dispersion to solution, and subjecting graphene oxide fiber to controlled heat treatment.
  • 专利号:   CN111701565-A
  • 发明人:   HUANG T, ZHU J
  • 专利权人:   UNIV NANJING TECHNOLOGY
  • 国际专利分类:   B01J020/20, B01J020/28, B01J035/06, B01J027/24, C02F001/28, C02F001/30, D01F008/18
  • 专利详细信息:   CN111701565-A 25 Sep 2020 B01J-020/20 202084 Pages: 9 Chinese
  • 申请详细信息:   CN111701565-A CN10595860 28 Jun 2020
  • 优先权号:   CN10595860

▎ 摘  要

NOVELTY - Method for preparing carbon nitride-loaded graphene-based flexible fiber, involves (a) adding carbon nitride soluble precursor to graphene oxide aqueous solution, and ultrasonically stirring to obtain a mixed dispersion, where the carbon nitride soluble precursor comprises cyanamide, dicyandiamide and/or urea, and solid content mass ratio to graphene oxide is 50:1-1:50, (b) injecting the mixed dispersion into an aqueous solution containing ammonium ions through a micron-level circular nozzle, and obtaining graphene oxide composite fibers through crosslinking and filament winding, and (c) subjecting the graphene oxide composite fiber to a controlled heat treatment to obtain the fiber. USE - The method is useful for preparing carbon nitride-loaded graphene-based flexible fiber used directly as flexible photocatalytic water purification device (claimed) and used in photocatalytic decomposition of pollution and field of portable and programmable water purification. ADVANTAGE - The method adopts simple operation, and is economical and suitable for large-scale production. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for use of the above-prepared carbon nitride-loaded graphene-based flexible fiber directly as flexible photocatalytic water purification device.