▎ 摘　　要

NOVELTY - The production method of manganese dioxide/graphene composite carbonized cotton fabric involves mixing grained graphene raw material and deionized water, ultrasonically reacting to obtain oxide graphene dispersion, completely immersing cotton fabric in oxidized graphene dispersion, drying, depositing manganese dioxide nanoparticles on surface of graphene oxide coating, mixing potassium permanganate powder in distilled water, obtaining mixed solution, immersing graphene-treated cotton fabric in mixed solution, adding anhydrous ethanol, washing, drying and subjecting to carbonization. USE - Production of manganese dioxide/graphene composite carbonized cotton fabric used for multifunctional textile. ADVANTAGE - The method enables production of manganese dioxide/graphene composite carbonized cotton fabric with improved capacitance and enhanced conductivity. DETAILED DESCRIPTION - The production method of manganese dioxide/graphene composite carbonized cotton fabric involves (1) mixing grained graphene raw material and deionized water at mass ratio of 1 g: 1 l, controlling temperature at 10-30 degrees C, ultrasonically reacting for 90 minutes to obtain oxide graphene dispersion, completely immersing cotton fabric in oxidized graphene dispersion for 2 hours until the cotton fabric sample is completely wetted and naturally drying at 20-30 degrees C, (2) depositing manganese dioxide nanoparticles on the surface of graphene oxide coating, taking 0.2860 g potassium permanganate powder, dispersing in a beaker containing 150 ml distilled water, stirring for 1 hours, obtaining a mixed solution, immersing the graphene-treated cotton fabric in mixed solution, adding 75 ml anhydrous ethanol, sealing with plastic wrap, leaving the mixture still for 6 hours, washing the tested cotton fabric samples to neutral, drying at 100 degrees C, (3) subjecting the prepared cotton fabric sample to carbonization, carrying out pyrolysis at 200 degrees C for 2 hours under nitrogen atmosphere, carbonizing at 800 degrees C and reducing graphene oxide to graphene in high temperature environment.