纤维基AgNPs ⑥ ZIF-8异质结材料的制备及其光催化性能

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中图分类号：TQ102.1 文献标志码：A DOI：10.13338/j.issn.1006-8341.2025.03.002

Preparation and photocatalytic performance of fiber-based AgNPs ZIF-8 heterostructure materials

LIUGuilian，CHENGJiazhe，JIAHao（Collge of Textile Science and Engineering，Jiangnan University，Wuxi 214122， Jiangsu，China）

Abstract Photocatalysts constructed from metal-organic framework， such as ZIF-8 remain hampered by significant limitations，including suboptimal catalytic efficiency and insuficient stability. AgNPs （204号 ZIF-8 heterojunction nanomaterials were synthesized and subsequently immobilized on PVDF nanofibers using screen-printing techniques to fabricate an eficient and stable nanofiber-based photocatalyst. 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 material 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 500mL/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.

Keywords metal-organic frameworks; fiber;composites; photocatalysis; electro-spinning

0 引言

随着工业化和城市化的发展，水体污染问题日益严峻[1-2]，光催化技术作为一种绿色可持续的水处理方法[3-6]，因其能够利用太阳能将有机污染物分解为无害物质而备受关注[7-8]

金属有机框架材料（MOF），如沸石咪唑酯骨架材料（ZIF-8），因其独特的配体结构，可诱导光生载流子的分离，是光催化研究领域的热点材料[9-11]。（剩余14427字）