摘要
利用溶剂热法合成了CoFe_(2)O_(4)@UiO-66和NiFe_(2)O_(4)@UiO-66磁性金属有机骨架复合材料(MMOFs),以其为吸附剂对罗丹明B(RhB)溶液进行吸附。采用紫外可见分光光度计(UV)测定吸光度并计算吸附量,以其作为评价指标,考察MMOFs对RhB的吸附能力;采用X射线衍射仪(XRD)、热重分析(TGA)、扫描电子显微镜(SEM)、振动磁强计(VSM)、比表面积分析仪(BET)和傅里叶红外分光光度计(IF-IR)等对CoFe_(2)O_(4)@UiO-66和NiFe_(2)O_(4)@UiO-66进行表征。结果表明,合成的磁性金属有机骨架材料的形貌均匀、结晶度高,具有高的饱和磁化强度和比表面积,MMOFs具有金属有机骨架材料和磁性材料的双重优点。CoFe_(2)O_(4)@UiO-66对罗丹明B有较高的吸附能力(最大值为63.3 mg/g),并且可以重复使用。
Magnetic metal organic framework material(CoFe_(2)O_(4)@UiO-66 and NiFe_(2)O_(4)@UiO-66)were synthesized by solvothermal method,and the adsorb rhodamine B solution was adsorbed using it as an adsorbent.The absorbance was measured by Ultraviolet visible spectrophotometer(UV)and the adsorption capacity was calculated.The adsorption capacity of RhB by MMOFs was investigated.X-ray diffractometer(XRD),thermogravimetric analysis(TGA),scanning electron microscope(SEM),vibrating magnetometer(VSM),specific surface area analyzer(BET)and Fourier infrared spectrophotometer(IF-IR)were used to characterize CoFe_(2)O_(4)@UiO-66 and NiFe_(2)O_(4)@UiO-66.The results show that the magnetic metal organic framework material has uniform morphology,high crystallinity,high saturation magnetization and high specific surface area.MMOFs have the dual advantages of metal-organic skeleton material and magnetic material.CoFe_(2)O_(4)@UiO-66 has a higher adsorption capacity for Rhodamine B(63.3 mg/g),and can be repeated use.
作者
王力霞
赵玉峰
WANG Li-xia;ZHAO Yu-feng(School of Vanadium and Titanium,Panzhihua University,Panzhihua 617000,China;Electrical and Information Engineering School of Panzhihua University,Panzhihua 617000,China)
出处
《化学研究与应用》
CAS
CSCD
北大核心
2022年第10期2538-2544,共7页
Chemical Research and Application
基金
辽宁省教育厅项目(LJ2020014)资助。
