Highly dispersed Fe3O4/carbon microspheres supported photocatalysts were prepared by hydrothermal -deposition precipitation method.The effects of carbon microsphere size and iron loading on the crystal structure and surface morphology of the material were characterized by using X-ray diffraction (XRD) and scanning electron microscopy (SEM).The Fe3O4/carbon supported materials showed obvious diffraction peaks of ferriferous oxide and the morphology of carbon microspheres remained constant , indicating the high dispersion of iron oxide .The photocatalytic degradation of methylene blue reached 95%within 120 min over 10%Fe3O4 in mass frac-tion/carbon microspheres .%采用水热-沉积沉淀两步法制备了高分散Fe3O4/碳微米球负载型光催化剂.利用X射线衍射仪(XRD)和扫描电镜(SEM)研究了合成条件对碳微米球尺寸、材料晶体结构和表面形貌的影响.结果发现,负载铁后,材料出现了明显的四氧化三铁的衍射峰且并未改变载体碳微米球的形貌,表明了铁氧化物的高度分散.可见光催化降解模拟染料废水(亚甲基蓝水溶液)的反应性能表明,负载量为10%(质量分数)的Fe3O4/碳微米球在2 h内,亚甲基蓝的降解率可以达到95%.
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