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首页> 外文期刊>Journal of Applied Polymer Science >Freestanding fiber mats of zeolitic imidazolate framework 7 via one-step, scalable electrospinning
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Freestanding fiber mats of zeolitic imidazolate framework 7 via one-step, scalable electrospinning

机译：通过一步可伸缩电纺丝法制备的咪唑沸石骨架7的独立纤维毡

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摘要

We demonstrated the fabrication of freestanding zeolitic imidazolate framework 7 (ZIF-7) nanofiber (NF) mats by means of one-step, scalable electrospinning. The formation of ZIF-7 nanoparticles embedded in polymer fibers was unambiguously pin-pointed via X-ray diffraction, transmission electron microscopy, and adsorption studies. The NF mats exhibited excellent characteristics, with an average diameter of 245 nm, in the adsorption and desorption of carbon dioxide (CO2); this makes them attractive candidates for gas separation and other selective filtration applications. This excellent property of the ZIF-7 mats was explained by the gate-opening phenomenon of ZIF-7, which yielded a stepwise increase in the overall CO2 uptake capacity. The mechanical strength of the NF mats was also obtained via large-strain uniaxial tensile deformation, which enabled preliminary assessment of the mat's suitability for textiles and membranes in targeting separation and filtration applications with large-area permeability. (C) 2016 Wiley Periodicals, Inc.
机译：我们通过一步可扩展的静电纺丝技术展示了独立式沸石咪唑酸酯骨架7（ZIF-7）纳米纤维（NF）垫的制造。通过X射线衍射，透射电子显微镜和吸附研究明确指出了嵌入聚合物纤维中的ZIF-7纳米颗粒的形成。 NF垫在二氧化碳（CO2）的吸附和解吸方面表现出卓越的特性，平均直径为245 nm。这使它们成为气体分离和其他选择性过滤应用的有吸引力的候选人。 ZIF-7垫的这种出色性能可以通过ZIF-7的开门现象来解释，该现象使总的CO2吸收能力逐步提高。 NF垫的机械强度也可通过大应变单轴拉伸变形获得，从而可以初步评估该垫在具有大面积渗透性的目标分离和过滤应用中对纺织品和膜的适用性。 （C）2016威利期刊公司

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