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论文类型：期刊论文

发表时间：2014-01-01

发表刊物：RSC ADVANCES

收录刊物：SCIE、EI、Scopus

卷号：4

期号：53

页面范围：28119-28125

ISSN号：2046-2069

摘要：MgO-MgFe2O4 composites with magnetism and adsorption capacity for Congo red were synthesized by an ion exchange route using magnesium carbonate as templates. X-ray powder diffraction (XRD), scanning electron microscopy (SEM), and magnetic hysteresis loop were carried out to characterize the crystalline phase, microstructure, and magnetic property of as-obtained MgO-MgFe2O4 composites. Congo red adsorption experiments were conducted to evaluate the adsorption property of the as-synthesized samples. The results showed that the as-synthesized MgO-MgFe2O4 composites have a hierarchical structure, magnetic properties and good adsorption performance. The optimized sample exhibited an excellent adsorption capacity (498 mg g(-1)) for Congo red, which is much higher than many other hierarchical magnetic materials.