Volume 10,Issue 8
Research on Equipment for the Preparation of PAN Photocatalytic Nanofiber Membranes
Efficient degradation of organic dye wastewater is a core urgent problem to be solved in the field of water pollution control. Conventional water treatment processes suffer from low degradation efficiency and severe secondary pollution, and cannot meet the discharge standards of industrial wastewater with complex compositions and fluctuating concentrations. This is the core reason for the rapid popularization and practical application of green photocatalysis technology. Visible light photocatalysis is driven by clean solar energy, featuring environmental friendliness, mild reaction conditions, and no demand for high-temperature and high-pressure auxiliary equipment, which makes it highly suitable for large-scale treatment of industrial dye wastewater. Polyacrylonitrile (PAN) nanofiber membranes possess unique merits including low cost, high flexibility, stable structure, and abundant pores. Through multi-step precise chemical modification to support heteropolyacid active components, recyclable visible-light-responsive photocatalytic membrane materials with high degradation efficiency and excellent stability can be fabricated.
[1] Zhang H, Wang L, Zhang X, et al., 2025, Fabrication of g-C₃N₄/PAN+TPU Composite Nanofiber Membrane and Its Performance for Treating Printing and Dyeing Organic Pollutants. Journal of Molecular Catalysis, 39(2): 129–140.
[2] Jia Y, Jiang C, Guo Z, et al., 2017, Research Progress on Advanced Treatment and Reuse of Printing and Dyeing Wastewater. Journal of Textile Research, 38(8): 172–180.
[3] Liu Y, Li X, Wang D, 2021, Fabrication and Photocatalytic Performance of Molybdenum Disulfide/PAN Composite Nanofiber Membrane. Dyeing & Finishing, 47(8): 62–66.
[4] Wang F, Zhao Y, Chen C, 2023, Modification of PAN-Based Composite Nanofiber Membrane and Its Visible Light Catalytic Degradation of Dye Wastewater. Technology of Water Treatment, 49(5): 78–83.
[5] Li M, Zhang Y, Sun X, 2022, Fabrication of PAN-Based Photocatalytic Membrane via Electrospinning and Its Cyclic Stability. Journal of Functional Materials, 53(11): 11132–11137.
[6] Wang X, Zhao W, Li Q, 2022, Fabrication and Visible Light Catalytic Performance of Phosphotungstic Acid Modified PAN Nanofiber Membrane. Chemical Industry and Engineering Progress, 41(7): 3210–3218.
[9] Yang S, Li H, Wang Z, 2024, Photocatalytic Mechanism of Heteropolyacid Modified PAN Membrane. Acta Scientiae Circumstantiae, 44(2): 156–163.
[10] Zhao X, Chen Y, Ma W, 2023, Fabrication of Visible-Light-Responsive PAN Composite Membrane and Its Application in Printing and Dyeing Wastewater Treatment. Industrial Water Treatment, 43(8): 94–99.
