▎ 摘　　要

NOVELTY - Preparation of iron(II,III) oxide/halloysite/graphene ternary composite material involves sequentially dispersing graphene oxide and halloysite in water, ultrasonically processing, adding iron(III) chloride hexahydrate and iron(II) sulfate heptahydrate, stirring at 70-90 degrees C, adding aqueous ammonia to adjust pH to 8-12, reacting for 1-2 hour, drying obtained product in nitrogen atmosphere, and calcining at 400-1100 degrees C. The mass ratio of graphene oxide and halloysite is 1:(0.8-1.2). The mass-volume ratio of graphene oxide and water is 0.05-1 g/L. USE - Preparation of iron(II,III) oxide/halloysite/graphene ternary composite material used in super capacitor electrode material, lithium-ion battery cathode material and adsorption of rhodamine B dye, and heavy metal ion e.g. pentavalent arsenic ion (all claimed). ADVANTAGE - The method enables simple and convenient preparation of iron(II,III) oxide/halloysite/graphene ternary composite material without using surfactant and other additive, under mild reaction conditions. DETAILED DESCRIPTION - Preparation of iron(II,III) oxide/halloysite/graphene ternary composite material involves sequentially dispersing graphene oxide and halloysite in water, ultrasonically processing, adding iron(III) chloride hexahydrate and iron(II) sulfate heptahydrate, stirring at 70-90 degrees C, adding aqueous ammonia to adjust pH to 8-12, reacting for 1-2 hour, drying obtained product in nitrogen atmosphere, and calcining at 400-1100 degrees C. The mass ratio of graphene oxide and halloysite is 1:(0.8-1.2). The mass-volume ratio of graphene oxide and water is 0.05-1 g/L. The mass ratio of iron(III) chloride hexahydrate and graphene oxide is (8-12):1. The molar ratio of iron(III) chloride hexahydrate and iron(II) sulfate heptahydrate is 2:(1.1-1.4).