▎ 摘　　要

NOVELTY - Preparing microbiological fuel cell magnetic three-dimensional gel ball anode material comprises e.g. providing 2-8 mg/ml 50-100 ml oxidized graphene dispersion, adding 0.1-1 mol/l 10-100 ml ferrous chloride solution dropwise, placing into the ultrasonic cleaning machine, performing ultrasonic cleaning, uniformly dispersing to obtain oxidized graphite alkene-ferrous chloride dispersion, adding 0.1-1 mol/l 5-50 ml sodium benzenesulfinate in oxidized graphite alkene-ferrous chloride dispersion, placing into the ultrasonic cleaning machine, performing ultrasonic cleaning, dispersing uniformly to obtain oxidized graphene-ferrous chloride-benzene sulfinate solution, adding 1-3 ml glacial acetic acid into the oxidized graphene-ferrous chloride-benzene sulfinate solution, stirring for 1-5 minutes, adding 2-8 g chitosan, quickly stirring for 60-120 minutes, adjusting speed to 50-200 revolutions/minute, stirring for 60-120 minutes, and allowing to stand. USE - The method is useful for preparing microbiological fuel cell magnetic three-dimensional gel ball anode material. ADVANTAGE - The method: is simple and economical; and has mild reaction condition. The anode material has large specific surface area, good biological compatibility, good extracellular electron transfer capability, and space utilization rate of the anode chamber. DETAILED DESCRIPTION - Preparing microbiological fuel cell magnetic three-dimensional gel ball anode material comprises (i) providing 2-8 mg/ml 50-100 ml oxidized graphene dispersion, adding 0.1-1 mol/l 10-100 ml ferrous chloride solution dropwise, placing into the ultrasonic cleaning machine, performing ultrasonic cleaning, and uniformly dispersing to obtain oxidized graphite alkene-ferrous chloride dispersion, (ii) adding 0.1-1 mol/l 5-50 ml sodium benzenesulfinate in oxidized graphite alkene-ferrous chloride dispersion, placing into the ultrasonic cleaning machine, performing ultrasonic cleaning and dispersing uniformly to obtain oxidized graphene-ferrous chloride-benzene sulfinate solution, (iii) adding 1-3 ml glacial acetic acid into the oxidized graphene-ferrous chloride-benzene sulfinate solution, stirring for 1-5 minutes, adding 2-8 g chitosan, quickly stirring for 60-120 minutes, adjusting speed to 50-200 revolutions/minute, stirring for 60-120 minutes, allowing to stand for 2-4 hours, and dispersing uniformly to obtain bubble-free slurry, (iv) adding100-250 ml 0.8-1.2 mol/l sodium hydroxide solution in slurry, allowing to stand for 12-24 hours to obtain gel ball precursor, and (v) placing gel ball precursor in water bath, heating at 80-95 degrees C for 12-24 hours, washing for multiple times to obtain product. An INDEPENDENT CLAIM is also included for microbiological fuel cell magnetic three-dimensional gel ball anode material prepared by above mentioned method.