摘要
采用水热法制备了Fe3O4磁性纳米微球,进而用腐殖酸(HA)修饰,成功制备了功能性磁性纳米复合材料(Fe3O4-HA)。并通过紫外可见分光光度计对含有有机染料亚甲基蓝(MB)废水中Fe3O4-HA磁性纳米复合材料的吸附行为进行研究。Fe3O4-HA磁性纳米复合材料的结构和性能用透射电子显微镜、光学接触角测量仪、傅立叶变换红外光谱、X射线衍射仪、振动样品磁强计等手段进行表征。结果表明:Fe3O4-HA磁性纳米复合材料结构均匀,平均粒径约为300 nm,饱和磁化强度为75.3 emu/g。Fe3O4-HA磁性纳米复合材料具有良好的超顺磁性,较高的吸附效率和可重复使用性。
Functional magnetic nanocomposite（ Fe3O4-HA） was successfully prepared by hydrothermal method,and then coated by humic acid（ HA）. Adsorption behavior of the Fe3O4-HA to wastewater containing organic dye methylene blue（ MB） was studied by ultraviolet and visible spectrophotometer. The structure and property of the Fe3O4-HA were characterized by transmission electron microscopy,optical contact angle,fourier transform infrared spectroscopy,X ray diffractometer,vibrating sample magnetometer. The results demonstrate that Fe3O4-HA has a homogeneous structure,and its average particles size is about 300 nm and the saturation magnetization is 75. 3 emu / g. This synthetic Fe3O4-HA nanocomposite has good superparamagnetism,high adsorption efficiency and reusability.
出处
《环境工程》
CAS
CSCD
北大核心
2015年第10期66-71,共6页
Environmental Engineering
基金
国家自然科学基金(11274216
11474192)
