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Nanomaterials 2016, 6(8), 152;

A Novel Polyvinylidene Fluoride Tree-Like Nanofiber Membrane for Microfiltration

College of Textile, Tianjin Polytechnic University, Tianjin 300387, China
College of Packaging and Printing Engineering, Tianjin Vocational Institute, Tianjin 300387, China
State Key Laboratory of Separation Membranes and Membrane Processes, Tianjin Polytechnic University, Tianjin 300387, China
Authors to whom correspondence should be addressed.
Academic Editor: Yongsheng Chen
Received: 8 July 2016 / Revised: 31 July 2016 / Accepted: 8 August 2016 / Published: 19 August 2016
(This article belongs to the Special Issue Environmental Applications and Implications of Nanotechnology)
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A novel polyvinylidene fluoride (PVDF) tree-like nanofiber membrane (PVDF-TLNM) was fabricated by adding tetrabutylammonium chloride (TBAC) into a PVDF spinning solution via one-step electrospinning. The structure of the prepared membranes was characterized by field emission scanning electron microscopy (FE-SEM), Fourier transform infrared spectroscopy (FT-IR) and pore size analysis, and the hydrophilic property and microfiltration performance were also evaluated. The results showed that the tree-like nanofiber was composed of trunk fibers and branch fibers with diameters of 100–500 nm and 5–100 nm, respectively. The pore size of PVDF-TLNM (0.36 μm) was smaller than that of a common nanofiber membrane (3.52 μm), and the hydrophilic properties of the membranes were improved significantly. The PVDF-TLNM with a thickness of 30 ± 2 μm showed a satisfactory retention ratio of 99.9% against 0.3 μm polystyrene (PS) particles and a high pure water flux of 2.88 × 104 L·m−2·h−1 under the pressure of 25 psi. This study highlights the potential benefits of this novel PVDF tree-like nanofiber membrane in the membrane field, which can achieve high flux rates at low pressure. View Full-Text
Keywords: electrospinning; polyvinylidene fluoride; tree-like; nanofibers; microfiltration electrospinning; polyvinylidene fluoride; tree-like; nanofibers; microfiltration

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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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Li, Z.; Kang, W.; Zhao, H.; Hu, M.; Wei, N.; Qiu, J.; Cheng, B. A Novel Polyvinylidene Fluoride Tree-Like Nanofiber Membrane for Microfiltration. Nanomaterials 2016, 6, 152.

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