Preparation of Iron-Carbon Composites and Their Performance in Sulfonamides Removal from Aqueous Solution
SI Xiongyuan
WANG Huiqing
JIN Tao
WU Kang
SI Youbin
Abstract：Charcoal carrying hydrous iron oxide was prepared by the vacuum evaporation method.The performance of the iron-carbon composites in sulfonamides removal from aqueous solution was compared under different preparation conditions.The research focused on the adsorption and removal characteristics of the composites in sulfonamides on the basis of optimizing the preparation conditions by batch experiments.The composites with the impregnation of Fe (NO3)3 solution showed optimal performance when the mass ratio of iron and carbon was 0.224:1 after curing for 9 h.It was shown that charcoal carrying hydrous iron oxide had better effect on sulfonamide and sulfadiazine removal than the single material.Decreasing with increasing initial concentration of antibiotics,the removal rate of sulfonamide and sulfadiazine in acid condition was higher than that in the neutral and alkaline condition,and the varying concentration of other ions did not affect the removal rate.The removal was fitted by the pseudo-first-order kinetics model,which presented a synergistic effect of physical adsorption and chemical degradation with the intermediate product in the process.
Keywords：iron-carbon compositessulfonamidesadsorptionremoval rateinfluence factor
Publication Date：2017-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：7( 25-30,76 )