【摘要】 通过一个简单的煅烧方法制备出磁性光催化剂Fe₃O₄/g-C₃N₄,并通过热重分析仪（TG）、粉末X射线衍射（XRD）、透射电子显微镜（TEM）进行表征。通过在可见光条件照射下降解罗丹明B（RhB）溶液评价其光催化性能。实验结果显示含Fe₃O₄质量分数为17.7%的Fe₃O₄/g-C₃N₄表现出的光催化性能最高,其在2h内降解了98.2%的RhB溶液。表征结果显示纳米Fe₃O₄均匀地沉积在片状g-C₃N₄表面。Fe₃O₄的掺杂增强了g-C₃N₄的光催化活性,这种增强作用可归因于Fe₃O₄和g-C₃N₄之间具有协同作用。更多还原

【Abstract】 A magnetic photocatalytic Fe₃O₄/g-C₃N₄ composite was synthesized using a simple calcination method.It was characterized by powder X-ray diffraction（XRD）,transmission electron microscopy（TEM）,and UV-Vis.The photocatalytic properties of the synthesized Fe₃O₄/g-C₃N₄ were evaluated by degrading Rhodamine B（RhB）in aqueous medium under visible-light irradiation.The Fe₃O₄/gC₃N₄ composite with 17.7% content of Fe₃O₄ exhibited the highest photocatalytic activity,it could degrade 92.5% RhB in 2h.The results indicated that the nano-Fe₃O₄ was uniformly deposited on the surface of sheet-shaped g-C₃N₄.The activity of photocatalytic was enhanced by doping Fe₃O₄.This enhancement could be attributed to the synergistic effect between Fe₃O₄ and g-C₃N₄.更多还原