摘要：The author constructed graphene oxide coupled zero-valent iron composite(G-nZVI) by one-step liquid phase reduction method. The physical mor-phology and composition of G-nZVI were analyzed by SEM, XRD,XPS and other technologies, and the influencing factors and efficiency of G-nZVI in de-grading tetracycline antibiotic oxytetracycline were discussed. SEMXRDXPS and others show that in G-nZVI modified by adding surfactant sodium do-decylbenzene sulfonate, iron is Fe0 with a particle size of 1-2nm, which is uniformly loaded on the sur-face of graphene without agglomeration. The con-structed G-nZVI system can fully exert the synergis-tic effect of graphene adsorption and zero-valent iron degradation in removing tetracycline from water. Under the optimal conditions, the removal efficiency of oxytetracycline can reach 99.39%, when the reac-tion temperature is controlled at 20°C, the pH of the system is 3,and the reagent/pollutant ratio is 4:1.
