Hao Ming, Zhang Tianyi, Hu Xiaodong, Chen Zhijun, Yang Bo, Wang Xiaoxiao, Liu Yanbo, Wang Run, Liu Yong
School of Textile Science and Engineering, State Key Laboratory of New Textile Materials and Advanced Processing Technologies, Wuhan Textile University, Wuhan, Hubei 430200, China; School of Textile Science and Engineering, State Key Laboratory of Separation Membranes and Membrane Processes, Tiangong University, Tianjin 300387, China.
School of Textile Science and Engineering, State Key Laboratory of New Textile Materials and Advanced Processing Technologies, Wuhan Textile University, Wuhan, Hubei 430200, China.
J Hazard Mater. 2023 Apr 15;448:130804. doi: 10.1016/j.jhazmat.2023.130804. Epub 2023 Jan 16.
3D felt materials with pore structures have the advantages of high absorption performance and recyclability in oily wastewater treatment and chemical leakage. However, most of them were fabricated using either toxic organic solvents or complicated procedures. Herein, we report a facile, green, and scalable route for the fabrication of 3D composite felts with large pore structures by sequentially stirring and heating polyethylene terephthalate (PET) fibers and polyvinylidene fluoride (PVDF). The resulting PET-PVDF felt exhibits high oil absorption capacity to a variety of oil and organic solvents with a maximum saturated absorption capacity of 32 g/g. Additionally, it can be used to separate oil/water mixtures with a separation efficiency of 99.9% and separation flux of 89570 L m h. Moreover, this felt shows excellent mechanical durability and chemical stability under acid, base, salt solution, and other harsh environments. The current study provides a promising approach for large-scale industrial oily wastewater separation.
具有孔隙结构的3D毡材料在含油废水处理和化学品泄漏方面具有高吸收性能和可回收性的优点。然而，它们中的大多数是使用有毒有机溶剂或复杂工艺制造的。在此，我们报告了一种通过依次搅拌和加热聚对苯二甲酸乙二酯（PET）纤维和聚偏二氟乙烯（PVDF）来制造具有大孔隙结构的3D复合毡的简便、绿色且可扩展的方法。所得的PET-PVDF毡对多种油类和有机溶剂具有高吸油能力，最大饱和吸收容量为32 g/g。此外，它可用于分离油/水混合物，分离效率为99.9%，分离通量为89570 L m h。而且，这种毡在酸、碱、盐溶液和其他恶劣环境下表现出优异的机械耐久性和化学稳定性。当前的研究为大规模工业含油废水分离提供了一种有前景的方法。
