三维载铁石墨烯对四环素和环丙沙星类抗生素的吸附性能与机理

Liaoning Urban and Rural Environmental Science & Technology(2022)

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Abstract
制备了三维载铁石墨烯材料(3D-rGO-Fe3O4),研究其吸附四环素(TC)、环丙沙星(CIP)等污染物的吸附性能与机理.实验结果表明,3D-rGO-Fe3O4对于TC和CIP均具有较好的吸附效果,与单一污染物相比,复合污染中两者的吸附量均有所降低.3D-rGO-Fe3O4对TC和CIP的吸附过程更符合准二级动力学吸附模型和Freundlich等温模型,模拟的最大吸附量分别为193.23 mg/g和119.56 mg/g,石墨烯对于CIP的吸附速度要快于吸附TC.经过4次重复实验后,3D-rGO-Fe3O4对于抗生素污染物的吸附容量下降幅度不到3%,显示了良好的重复性能.
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