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Electrospinning Synthesis of ZIF-67/PAN Fibrous Membrane with High-capacity Adsorption for Malachite Green

Electrospinning Synthesis of ZIF-67/PAN Fibrous Membrane with High-capacity Adsorption for... Metal-organic frameworks (MOFs) exhibit great potential for dye adsorption. However, MOF powder is difficult to remove from aqueous solution, which hinders the practical application of MOFs. Integration of MOFs on polymeric fibrous membrane provides a new strategy to reach the achievements that not only keep the adsorption ability of MOFs for dyes, but also easily remove the MOF/dye complex from water. Here, we successfully synthesize zeolitic imidazole framework-67/polyacrylonitrile (ZIF-67/PAN) fibrous membrane with ZIF-67 loading ratio of 54 % by electrospinning method. The average diameters of ZIF-67 nanoparticles and ZIF-67/PAN fibers are about 200 nm and 0.72 µm, respectively. The adsorption process of MG on ZIF-67 nanoparticles or ZIF-67/PAN fibers followed a pseudo-second-order kinetic model and fitted Langmuir isotherm. The maximum adsorption capacities of ZIF-67 nanoparticles and ZIF-67/PAN fibers are 2545 and 1305 mg·g−1, respectively. After four regeneration cycles, the ZIF-67/PAN fibers membrane still exhibit over 92 % of the original capacity of ZIF-67/PAN fibers. In addition, ZIF-67/PAN fibers also show good adsorption abilities for Congo red (849 mg·g−1) and Basic fuschin (730 mg·g−1). Therefore, ZIF-67/PAN fibers would be as a promising adsorbent for the removal of dye in industrial application because of its simple preparation method, excellent adsorption property, ease of separation and favorable reusability. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Fibers and Polymers Springer Journals

Electrospinning Synthesis of ZIF-67/PAN Fibrous Membrane with High-capacity Adsorption for Malachite Green

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References (47)

Publisher
Springer Journals
Copyright
Copyright © 2019 by The Korean Fiber Society
Subject
Chemistry; Polymer Sciences
ISSN
1229-9197
eISSN
1875-0052
DOI
10.1007/s12221-019-1196-7
Publisher site
See Article on Publisher Site

Abstract

Metal-organic frameworks (MOFs) exhibit great potential for dye adsorption. However, MOF powder is difficult to remove from aqueous solution, which hinders the practical application of MOFs. Integration of MOFs on polymeric fibrous membrane provides a new strategy to reach the achievements that not only keep the adsorption ability of MOFs for dyes, but also easily remove the MOF/dye complex from water. Here, we successfully synthesize zeolitic imidazole framework-67/polyacrylonitrile (ZIF-67/PAN) fibrous membrane with ZIF-67 loading ratio of 54 % by electrospinning method. The average diameters of ZIF-67 nanoparticles and ZIF-67/PAN fibers are about 200 nm and 0.72 µm, respectively. The adsorption process of MG on ZIF-67 nanoparticles or ZIF-67/PAN fibers followed a pseudo-second-order kinetic model and fitted Langmuir isotherm. The maximum adsorption capacities of ZIF-67 nanoparticles and ZIF-67/PAN fibers are 2545 and 1305 mg·g−1, respectively. After four regeneration cycles, the ZIF-67/PAN fibers membrane still exhibit over 92 % of the original capacity of ZIF-67/PAN fibers. In addition, ZIF-67/PAN fibers also show good adsorption abilities for Congo red (849 mg·g−1) and Basic fuschin (730 mg·g−1). Therefore, ZIF-67/PAN fibers would be as a promising adsorbent for the removal of dye in industrial application because of its simple preparation method, excellent adsorption property, ease of separation and favorable reusability.

Journal

Fibers and PolymersSpringer Journals

Published: Nov 5, 2019

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