Near-infrared light responsive nanofiber Janus membrane as well as preparation method and application thereof

The invention discloses a near-infrared light responsive nanofiber Janus membrane as well as a preparation method and application thereof. The preparation method comprises the following steps: introducing amino groups on a carboxylated nanocellulose fiber matrix, further introducing phenolic hydroxyl groups to prepare near-infrared light stimulation response type nanofibers, and preparing super-hydrophobic nanofibers by taking the near-infrared light stimulation response type nanofibers as a divinyl benzene free radical polymerization matrix. Then, the super-hydrophobic nanofiber is exposed to ultraviolet light, and hydrophilic nanofiber is prepared; then, hydroxymethyl cellulose and N-isopropylacrylamide are subjected to copolymerization, and nanofibers with the temperature phase transformation performance are prepared; finally, a mold is partitioned into an upper compartment, a lower compartment, a left compartment and a right compartment through partition plates, the upper compartment, the lower compartmen