PERMEABLE GRAPHENE AND PERMEABLE GRAPHENE MEMBRANES

• Main Authors: XIE MING, SEO DONG HAN, HAN ZHAO JUN, VAN DER LAAN TIMOTHY, OSTRIKOV KOSTYANTYN, MURDOCK ADRIAN, PINEDA SHAFIQUE
• Format: Patent
• Language: Chinese; English
• Published: 14.01.2020
• Subjects: CHEMICAL SURFACE TREATMENT; CHEMISTRY; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATIONOR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY IONIMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; COATING MATERIAL WITH METALLIC MATERIAL; COATING METALLIC MATERIAL; COMPOUNDS THEREOF; DIFFUSION TREATMENT OF METALLIC MATERIAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL; INORGANIC CHEMISTRY; METALLURGY; NON-METALLIC ELEMENTS; PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; SEPARATION; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; TRANSPORTING; TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE

Continuous permeable graphene films have 2 or more layers of graphene and nanochannels or nanopores extend through said film. Each nanochannel is comprised of a fluidly connected series of gaps between edge mismatches of adjacent graphene grains within said 2 or more layer adjacent sheets, said nanochannels providing a fluid passage from one face of the permeable graphene film to the other. Also,disclosed are membranes including a permeable support membrane overlaid by a continuous permeable graphene film and processes for the preparation of said membranes. Also disclosed is the use of said membranes in water purification and desalination, for example. 连续的可透性石墨烯薄膜，其具有两层或更多层石墨烯且其中纳米通道或纳米孔延伸穿过所述膜。每个纳米通道由在所述两层或更多层相邻片材中相邻石墨烯晶粒的边缘失配之间的流体连通的一系列间隙组成，所述纳米通道提供从可透性石墨烯薄膜的一个面到另一个面的流体通道。此外，包括被连续的可透性石墨烯薄膜覆盖的可透性支撑膜的膜及所述膜的制备方法。以及所述膜在例如水净化和脱盐中的用途。