Two-dimensional cellulose nanofluid channel film and preparation method and application thereof

The invention discloses a two-dimensional cellulose nanofluid channel membrane and a preparation method and application thereof.The two-dimensional nanomaterial and cellulose nanofibers are combined to form a two-dimensional nanomaterial/cellulose composite membrane, the interior of the two-dimensional nanomaterial/cellulose composite membrane is provided with abundant layered nanochannels, ultrafast ion transmission is shown, and efficient permeation energy conversion can be achieved. Cellulose nanofibers in the two-dimensional cellulose nanofluid channel film are obtained through TEMPO oxidation, and a two-dimensional nanomaterial comprises a g-C3N4 nanosheet and a WS2 nanosheet. The nanofluid channel membrane has high charge density and layered nanochannels, has high ion flux, shows ultrafast ion transmission, shows relatively high osmotic energy conversion performance in energy conversion application, and can further improve the osmotic energy conversion performance by raising the temperature or providing