Eu doped Zn-MOF nanofiber fluorescent membrane and its multifunctional detection of nitroaromatic compounds and Fe3+

Metal-organic framework (MOF) fluorescent materials have significant advantages in detecting organic pollutants and metal ion pollution. A zinc metal organic framework nanofiber fluorescent membrane (Zn(Eu)MOF@PAN NFM) was prepared by doping the lanthanide metal Eu using an electrospinning and impregnation process. The structure and morphology of the membrane was characterized by SEM, XRD, FT-IR and XPS. The results show that the membrane has good fluorescence performance and can successfully and efficiently detect nitrobenzene (NB; detection limit = 0.861 ppm, Ksv = 0.143 ppm- 1), 4-nitrophenol (4-NP; detection limit = 0.631 ppm, Ksv = 0.178 ppm- 1), benzaldehyde (BA; detection limit = 0.981 ppm, Ksv = 0.051 ppm-1) and Fe3+ ions (detection limit = 3.418 ppm, Ksv = 3.210x10- 3 ppm-1) in solution. In terms of repeatability and stability, the test results are obviously better than the property of the powder.

Automated summary

A zinc metal organic framework nanofiber fluorescent membrane (Zn(Eu)MOF@PAN NFM) doped with lanthanide metal Eu was prepared by electrospinning and impregnation. The membrane has good fluorescence performance and can efficiently detect organic pollutants and metal ion pollution in solution.