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Fabrication of Tubular Braid Reinforced PMIA Nanofiber Membrane with Mussel-Inspired Ag Nanoparticles and its Superior Performance for the Reduction of 4-nitrophenol

Abstract

A novel tubular braid reinforced (TBR) PMIA/CA-PEI/Ag nanofiber membrane which could be applied in dynamic catalysis applications was introduced in this study. The method of preparing the TBR PMIA/CA-PEI/Ag nanofiber membrane was facile and efficient. The TBR PMIA/CA-PEI/Ag nanofiber membrane was characterized by field emission scanning electron microscope (FESEM), transmission electron microscopy (TEM), X-ray photoelectron spectroscope (XPS), X-ray diffraction (XRD) and thermal gravimetric analysis (TGA), respectively. The mechanical properties were evaluated by a universal material testing machine. The tensile strength of TBR nanofiber membrane was exceeded 500MPa while the nanofiber membrane without reinforced was merely 10MPa. Besides, the compressive strength of TBR nanofiber membrane was also reinforced which meant the TBR nanofiber membrane could withstand higher operating pressure. The reduction of 4-NP to 4-AP was selected as the model reaction to evaluate the catalytic property of TBR PMIA/CA-PEI/Ag nanofiber membrane. The apparent rate constant of dynamic catalysis process was 34.58 times higher than static catalysis. After 10 cycles, the conversion of 4-NP was still higher than 95.3%. It indicated that the TBR PMIA/CA-PEI/Ag nanofiber membrane had a superior stability and recyclability. Besides, the TBR PMIA/CA-PEI/Ag nanofiber membrane also showed a superior catalytic performance when it was used for catalyzing other environmental pollutants.

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Publication details

The article was received on 08 Aug 2018, accepted on 28 Sep 2018 and first published on 02 Oct 2018


Article type: Paper
DOI: 10.1039/C8NR06398B
Citation: Nanoscale, 2018, Accepted Manuscript
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    Fabrication of Tubular Braid Reinforced PMIA Nanofiber Membrane with Mussel-Inspired Ag Nanoparticles and its Superior Performance for the Reduction of 4-nitrophenol

    M. Chen, C. Xiao, C. Wang, H. Liu, H. Huang and D. Yan, Nanoscale, 2018, Accepted Manuscript , DOI: 10.1039/C8NR06398B

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