超声制备复合材料Fe-Co PBAs@ZIFs及其催化性能

Ultrasonic preparation and catalytic performance of composites Fe-Co PBAs@ZIFs

为利用硫酸根自由基快速高效地降解染料废水,通过温控超声方法制备了一种新型金属有机骨架(MOFs)复合材料Fe-Co PBAs@ZIFs,采用TEM、SEM、EDS、XRD、BET等技术对Fe-Co PBAs@ZIFs进行结构表征,并将其用于催化过氧化单硫酸盐(PMS)降解罗丹明B(RhB)和亚甲基蓝(MB)染料。结果表明:Fe-Co PBAs@ZIFs核壳结构可在短短数十分钟之内成功合成,其大小均匀、形貌良好,且具有超高的比表面积(1760.328 m^(2)/g)和较好的热稳定性;在PMS和Fe-Co PBAs@ZIFs共存的体系中,RhB和MB分别可在5和4 min内完全降解,表明Fe-Co PBAs@ZIFs具有良好的催化降解活性。

In order to utilize sulfate radical to degrade dye wastewater rapidly and efficiently,a new type of metal organic framework(MOFs)material of Fe-Co PBAs@ZIFs was prepared by temperature-controlled ultrasound method.The structure of Fe-Co PBAs@ZIFs was characterized using TEM,SEM,EDS,XRD,BET and other technologies.And Fe-Co PBAs@ZIFs was used to catalyze the degradation of rhodamine B(RhB)and methylene blue(MB)dyes by PMS.The results showed that the core-shell structure of Fe-Co PBAs@ZIFs can be successfully synthesized in just a few minutes,with uniform size,good morphology,high specific surface area(1760.328 m^(2)/g)and good thermal stability.In the coexisting system of PMS and Fe-Co PBAs@ZIFs,RhB and MB can be completely degraded in 5 and 4 min respectively,indicating that Fe-Co PBAs@ZIFs has good catalytic degradation activity.