Electrospun polyvinylidene fluoride-ZnO composite fibers for pyrocatalytic wastewater treatment

Cleaner Water Pub Date : 2025-08-07 DOI:10.1016/j.clwat.2025.100108

Aditya Gaur , Nishchay Saurabh , Akash Kankane , S. Janakiraman , Satyanarayan Patel

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引用次数: 0

Abstract

Piezocatalysis and tribocatalysis have been widely used for wastewater treatment and disinfection using poly (vinylidene fluoride) (PVDF) and composites. However, the pyrocatalytic potential of these materials remains largely unexplored. The present study synthesized PVDF and PVDF-ZnO composite fiber films using the electrospinning technique for wastewater treatment applications. The fabricated compositions were characterized using various measurements to confirm their phase structure and surface morphology. The PVDF/PVDF-ZnO fiber film is analyzed for pyrocatalytic-driven dye degradation using methylene blue (MB) dye as a pollutant. The highest MB dye degradation is 91.84 % after 60 heating/cooling cycles. The effect of the electric field applied during the fabrication is also analyzed, and it was found that the PVDF-ZnO film electrospun under 18 kV provides maximum dye degradation. The confirmation of active species during dye degradation is done using a scavenger test. The repeatability and reusability of the fabricated composite are also studied.

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电纺聚偏氟乙烯- zno复合纤维用于热催化废水处理

压电催化和摩擦催化在聚偏氟乙烯及其复合材料的废水处理和消毒中得到了广泛的应用。然而，这些材料的热催化潜力在很大程度上仍未被探索。本研究利用静电纺丝技术合成了PVDF和PVDF- zno复合纤维薄膜，并将其应用于废水处理。利用各种测量方法对制备的组合物进行了表征，以确定其相结构和表面形貌。以亚甲基蓝（MB）染料为污染物，对PVDF/PVDF- zno纤维膜进行了热催化降解染料的研究。经过60次加热/冷却循环后，MB染料的最高降解率为91.84 %。分析了制备过程中施加的电场的影响，发现在18 kV下静电纺丝的PVDF-ZnO薄膜具有最大的染料降解能力。染料降解过程中活性物质的确认是通过清除剂试验完成的。研究了复合材料的可重复性和可重用性。

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Cleaner Water

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