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Freestanding fiber mats of zeolitic imidazolate framework 7 via one‐step, scalable electrospinning
Author(s) -
An Seongpil,
Lee Ji Sun,
Joshi Bhava.,
Jo Hong Seok,
Titov Kirill,
Chang JongSan,
Jun ChulHo,
AlDeyab Salem S.,
Hwang Young Kyu,
Tan JinChong,
Yoon Sam S.
Publication year - 2016
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.43788
Subject(s) - electrospinning , zeolitic imidazolate framework , materials science , imidazolate , chemical engineering , ultimate tensile strength , adsorption , membrane , fabrication , polymer , polyacrylonitrile , transmission electron microscopy , filtration (mathematics) , nanofiber , composite material , nanotechnology , metal organic framework , chemistry , organic chemistry , medicine , biochemistry , alternative medicine , statistics , mathematics , pathology , engineering
ABSTRACT 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 pinpointed 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 (CO 2 ); 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 CO 2 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. © 2016 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2016 , 133 , 43788.