Fe3O4@MOF-199@C18的制备及其对亚甲基蓝吸附的影响

采用水热法合成了Fe3O4@MOF-199@C18磁性纳米材料,并以此为吸附剂进行对亚甲基蓝的吸附实验,考察了Fe3O4@MOF-199@C18材料的吸附性能。通过红外光谱、扫描电镜、透射电镜等手段对该磁性材料进行了表征,结果表明此合成材料为质地均匀、表面多孔的磁性纳米材料。Fe3O4@MOF-199@C18磁性纳米材料吸附亚甲基蓝的最佳吸附条件为:pH为4,振荡时间为35 min,材料用量为5 mg,亚甲基蓝初始浓度为3 mg/L时,Fe3O4@MOF-199@C18磁性纳米材料对亚甲基蓝的吸附量为12.81 mg/g。重复利用实验结果表明,Fe3O4@MOF-199@C18材料至少可以重复利用7次。

Preparation of Fe3O4@MOF-199@C18 and Its Effect on Adsorption of Methylene Blue

Fe3O4@MOF-199@C18 magnetic nanomaterials were synthesized by hydrothermal method,and the adsorption experiments of methylene blue were carried out with this adsorbent. The adsorption properties of Fe3O4@MOF-199@C18 materials were investigated,and the magnetic material was characterized by FT-IR,SEM,TEM and other means. The results showed that the composite material was a magnetic nanomaterial with uniform texture and porous surface. Fe3O4@MOF-199@C18 magnetic nanoporous materials of methylene blue optimum adsorption conditions were:pH value was 4,shock time was 35 min,the amount of material was 5 mg,methylene blue initial concentration was 3 mg/L,Fe3O4@MOF-199@C18 magnetic nanoporous materials adsorption capacity of methylene blue was 12.81 mg/g. In addition,the resulting Fe3O4@MOF-199@C18 could be reused at least seven times.