▎ 摘　　要

NOVELTY - Method for preparing microwave-induced graphene fiber non-woven fabric loaded bismuth nanoparticles, involves (a) placing graphene oxide aqueous solution in centrifuge tube, adding N,N-dimethylformamide, centrifuging, retaining bottom oxidized graphene, and removing supernatant, repeating adding N,N-dimethylformamide-centrifugal separation-removing supernatant process, (b) adding bismuth powder to mortar and grinding, (c) adding bismuth powder to graphene oxide/N, N-dimethylformamide, and magnetically stirring, (d) taking obtained mixed solution using syringe, injecting the syringe to coagulating solution, and spinning to non-woven fabric structure, (e) placing dried non-woven fabric in drying dish, adding hydroiodic acid, heating in closed state, and maintaining the temperature, and (f) placing non-woven fabric reduced in step (e) in high-temperature resistant container, filling rare gas in bottle, placing in microwave oven, and performing microwave heating process. USE - Method for preparing microwave-induced graphene fiber non-woven fabric loaded bismuth nanoparticles. ADVANTAGE - The method is simple and suitable for industrial production, and the prepared flexible graphene/bismuth nanoparticle non-woven fabric has excellent electrochemical performance, and provides rapid and convenient synthesis of metal nanoparticles. DETAILED DESCRIPTION - Method for preparing microwave-induced graphene fiber non-woven fabric loaded bismuth nanoparticles, involves (a) placing graphene oxide aqueous solution in centrifuge tube, where the concentration of graphene oxide aqueous solution is 1/6-1/3 based on total volume of centrifuge tube, adding N,N-dimethylformamide based on 1/6-1/2 centrifuge tube volume, centrifuging for 25-35 minutes in centrifuge, after completing centrifugation, retaining bottom oxidized graphene, and removing supernatant, repeating adding N,N-dimethylformamide-centrifugal separation-removing supernatant process for 1-5 times to obtain 4-13 mg/ml graphene oxide in dimethylformamide dispersion, where the concentration of graphene oxide aqueous solution is 2-4 mg/ml, (b) adding bismuth powder to mortar and grinding for 30-60 minutes to obtain bismuth particles with particle size of 40-60 mu m, (c) adding bismuth powder to graphene oxide/N, N-dimethylformamide, and magnetically stirring for 3-6 hours to obtain graphene oxide/bismuth/N,N-dimethylformamide, where 0.5-2 ml graphene oxide/N,N-dimethylformamide (GO/DMF) is added per mg bismuth powder, (d) taking obtained mixed solution using syringe, injecting the syringe to coagulating solution at an injection speed of 3-18 ml/hour, spinning to non-woven fabric structure, and placing the non-woven fabric at room temperature after completing injection, (e) placing dried non-woven fabric in drying dish, adding hydroiodic acid, heating at 60-120 degrees C in closed state, and maintaining the temperature for 3-9 hours to obtain graphene non-woven fabric loaded with tiny particles of bismuth loaded, where the average per mg of non-woven fabric added is 0.1-0.3 ml hydroiodic acid, and (f) placing non-woven fabric reduced in step (e) in high-temperature resistant container, filling rare gas in bottle, placing in microwave oven, and performing microwave heating process under power of 700-1200 W for 1-20 seconds to obtain graphene non-woven fabric with particle size distribution of 30-50 nm loaded with bismuth nanoparticles.