▎ 摘　　要

NOVELTY - An antibacterial graphene nanoknife comprises 6-10 pts. wt. graphite, 25-30 pts. wt. acid liquid, 6-10 pts. wt. intercalator, 0.2-1 pt. wt. dispersant, 99-99.8 pts. wt. liquid carrier, and 0.1-10 pts. wt. layered silicate. USE - Antibacterial graphene nanoknife used for preparing washing and protecting articles such as facial cleanser and facial mask and medical hydrogel (all claimed). ADVANTAGE - The graphene nanoknife has excellent antibacterial performance and can prepares healthy, high-absorption, clean antibacterial products. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are included for the following: (1) manufacture of antibacterial graphene nanoknife, which involves (i) adding graphite to the acid solution, adding intercalator at the temperature of the solution at 60-80 degrees C, stirring and filtering, washing the residue with hydrochloric acid until no sulfate is detected, and washing the residue until the pH is 5-7, with deionized water and drying to obtain intercalated graphite, (ii) placing the intercalated graphite in a microwave device, and passing nitrogen, and microwave processing for 1-3 minutes to prepare expanded graphite, (iii) adding the dispersant to the liquid carrier and stirring evenly to obtain a mixed liquid, (iv) adding the expanded graphite prepared in the step (ii) to the mixed liquid prepared in the step (iii) to prepare a mixed material liquid, (v) adding layered silicate to the mixed material liquid prepared in step (iv), and using high-jet equipment to perform high-speed fluid collision to obtain a multilayer graphene mixed liquid, and (vi) suction filtrating or centrifuging and concentrating the multilayer graphene mixture obtained in step (v); and (2) use of antibacterial graphene nanoknife for preparing washing and protecting articles, facial cleanser and medical hydrogel.