| abstract |
The invention relates to a nanofiber aerogel-based solar water evaporator and a preparation method thereof. The method comprises the following steps: mixing and dispersing the polyamide acid nano-fiber and water-soluble polyamide acid, freezing the obtained dispersion liquid, freeze-drying, performing thermal imidization, soaking the obtained polyimide nano-fiber aerogel in an initiator solution, and dropwise adding a pyrrole monomer solution on the surface of the aerogel for polymerization reaction. The method has simple preparation process and low cost; the prepared solar water evaporator has the advantages of light density, low thermal conductivity, high photothermal conversion efficiency and the like, and is a good solar water evaporator. |