▎ 摘　　要

NOVELTY - Preparing three-dimensional porous graphene load nano zero-valent iron/manganese oxide composite material comprises firstly ultrasonically dispersing the graphite oxide powder in pure water to obtain graphene oxide colloid solution, adding potassium permanganate and bivalent manganese salt, stirring to obtain mixed solution, carrying out hydrothermal reaction to the mixed solution, carrying out ultrasonic dispersion to the solution system obtained by hydrothermal reaction, and adding bivalent iron salt and reducing agent containing borohydride ion to the solution under the protective atmosphere without oxygen, then stirring and mixing to carry out reduction reaction so as to obtain the three-dimensional porous graphene load nano zero-valent iron/manganese oxide composite material. USE - The three-dimensional porous graphene load nano zero-valent iron/manganese oxide composite material is useful in catalyzing and degrading antibiotic in water body. ADVANTAGE - The method prevents the agglomeration of nanoparticles, has improved the catalytic performance, can efficiently and rapidly oxidize and degrade antibiotics in water in a very wide pH range without additional agents. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are also included for: (1) three-dimensional porous graphene load nano zero-valent iron/manganese oxide composite material prepared by above method; and (2) use method of three-dimensional porous graphene load nano zero-valent iron/manganese oxide composite material for catalyzing and degrading antibiotic in water body comprising adding three-dimensional porous graphene load nano zero-valent iron/manganese oxide composite material into the waste water containing antibiotic, performing oscillating reaction, and it can realize the catalytic degradation of the antibiotic in the water body, preferably, the pH value of the waste water containing antibiotic is 3-6.5, preferably, the dosage of the three-dimensional porous graphene load nano zero-valent iron/manganese oxide composite material corresponding to each 1l of the antibiotic-containing waste water using 0.1-0.5 g, preferably, the reaction temperature of the oscillating reaction is 15-35degrees Celsius, more preferably, the oscillating reaction is carried out in the constant temperature oscillation box.