▎ 摘　　要

NOVELTY - MXene/graphene oxide three-dimensional heterojunction aerogel comprises MXene and graphene oxide composite in the ratio of 1:16, 1:8, 1:4. USE - MXene/graphene oxide three-dimensional heterojunction aerogel used for electronic transmission, heat insulation, energy storage and recycling of heavy metal. ADVANTAGE - The MXene/graphene oxide three-dimensional heterojunction aerogel has good stability and repeatability. The prepared composite material has large specific surface area. The multi-layer net-like structure is good for electronic transmission and has good reducibility. It has good application in heat insulation, energy storage and recycling of heavy metal. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a method for preparing a MXene/graphene oxide three-dimensional heterojunction aerogel, which involves: preparing certain concentration of hydrochloric acid solution, pouring the prepared hydrochloric acid solution into the beaker of the polytetrafluoroethylene and putting on the heating type magnetic stirrer to stir, weighing a certain mass ratio of lithium flouride and titanium aluminum carbide;#adding the polytetrafluoroethylene beaker, covering the preservative film, starting to heat and stir, closing the instrument after finishing reaction, naturally cooling to room temperature, then adding distilled water, transferring the diluted test solution into a beaker; standing for multiple hours;#taking clean centrifugal tube, pouring the supernatant into the supernatant, and adding water again in the precipitate, centrifuging after ultrasonic for half an hour, forming uniform suspension, then sucking out the suspension by a pipette, putting into a clean centrifugal bottle, centrifuging and washing the suspension by water, then measuring the pH of the solution by pH test paper until the solution is neutral; step two, ultrasonically processing the existing 2mg/mL graphene oxide aqueous solution; and#taking clean centrifugal tube for future use, diluting the prepared MXene suspension and carrying out ultrasonic, obtaining uniform MXene solution, mixing MXene and graphene oxide in a clean centrifugal tube according to a specific mass ratio, respectively making the two fully mixed and then freezing, finally putting the frozen MXene/graphene oxide mixed solution into a freeze drier to freeze and dry to obtain product.