Intra porous fibrous membranes have enhanced metal ionic adsorption and oil separation abilities than those of intra nonporous fibrous membrane. In this paper, we prepared highly intra porous fibrous poly (vinylidene fluoride) (PVDF) membranes using an innovated water-mediated electrospinning approach. FTIR-ATR and XRD techniques confirmed the conversion of non-polar α-phase to polar β-phase in electrospun membranes. The porous fibrous membrane M–16 had adsorbed oil almost 120% and metal adsorption around 15%, 12%, 5%, 13% respectively for Pb²⁺, Cd²⁺, Cu²⁺ and Zn²⁺, which are larger than the counterpart of nonporous M–18. The nonporous fibrous membranes have better peak to peak output voltage (V_p-V_p) 2 to 3 times than the porous fibrous membranes (M–16). The results show apparent potential applications in wastewater/oil spill treatment as well as piezoelectric sensors.

内多孔纤维膜比内无孔纤维膜具有增强的金属离子吸附和油分离能力。在本文中，我们使用创新的水介导静电纺丝方法制备了高度内孔的纤维状聚偏二氟乙烯 (PVDF) 膜。FTIR-ATR 和 XRD 技术证实了电纺膜中非极性 α相向极性 β 相的转化。多孔纤维膜M-16对Pb ²⁺、Cd ²⁺、Cu ²⁺和Zn ²⁺的油吸附率接近120%，金属吸附率分别约为15%、12%、5%、13% ，大于无孔 M-18 的对应物。无孔纤维膜具有更好的峰峰值输出电压（V_p - V _p ) 是多孔纤维膜 (M–16) 的 2 到 3 倍。结果显示在废水/溢油处理以及压电传感器方面具有明显的潜在应用。