纤维基AgNPs@ZIF-8异质结材料的制备及其光催化性能OA

Photocatalysts constructed from metal-organic framework,such as ZIF-8 remain hampered by significant limitations,including suboptimal catalytic efficiency and insufficient stability.AgNPs@ZIF-8 heterojunction nanomaterials were synthesized and subsequently immobilized on PVDF nanofibers using screen-printing techniques to fabricate an efficient and stable nanofiber-based pho-tocatalyst.The structural properties of the material were comprehensively characterized by using X-ray diffraction(XRD),fourier-transform infrared spectroscopy(FTIR),X-ray photoelectron spectroscopy(XPS),and UV-Vis-NIR spectroscopy.And the degradation performence of the mate-rial for methylene blue was tested by photocatalytic experiment.The results demonstrated that AgNPs@ZIF-8 exhibited markedly enhanced photoelectrochemical properties compared to pure ZIF-8.Under a water flow rate of 500 mL/min,photocatalytic reaction rate constant of the AgNPs@ZIF-8/PVDF composite nanofiber membrane the was 2.6 times higher than that of the nanoparticles,with an MB degradation efficiency reaching 70％and exhibiting excellent stability.This study provides a foundational platform for the practical implementation of flow-driven photocatalysis in industrial wastewater treatment.