| abstract |
The invention discloses a graphene aerogel hollow fiber, a preparation method and application thereof. The graphene aerogel hollow fiber has a ring-shaped, closed graphene aerogel wall and a pipe cavity running through the fiber axis, and the graphene aerogel wall has a three-dimensional overlapping of graphene sheets. , a continuous three-dimensional porous network, and the pipeline cavity is surrounded by graphene aerogel walls. The preparation method includes: using coaxial needle-assisted sol-gel technology to prepare graphene hydrogel hollow fibers, and then performing supercritical fluid drying and/or freeze drying treatment on them to obtain graphene aerogel hollow fibers . The graphene aerogel hollow fiber of the present invention has excellent mechanical flexibility, water transport performance and photothermal conversion performance, and has important applications in the fields of photothermal conversion, fluid transport, seawater desalination and the like, and the preparation process is simple and the reaction conditions are simple. It is mild and can realize continuous production. |