Preparation of ZIF-67@PAN Nanofibers for CO<sub>2</sub> Capture: Effects of Solvent and Time on Particle Morphology
Advanced materials including metal–organic frameworks (MOFs) are a critical piece of the puzzle in the search for solutions to various scientific and technological challenges, such as climate change due to the ever-increasing emissions of greenhouse gas. There is intense interest in MOFs due to thei...
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2025-04-01
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| author | Guilherme Henrique Franca Melo Tiffany Yau Yuxin Liu Uttandaraman Sundararaj |
| author_facet | Guilherme Henrique Franca Melo Tiffany Yau Yuxin Liu Uttandaraman Sundararaj |
| author_sort | Guilherme Henrique Franca Melo |
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| description | Advanced materials including metal–organic frameworks (MOFs) are a critical piece of the puzzle in the search for solutions to various scientific and technological challenges, such as climate change due to the ever-increasing emissions of greenhouse gas. There is intense interest in MOFs due to their potential use for a variety of environmental applications, including catalysis and gas storage. In this work, we specifically focus on the in situ growth of zeolitic imidazolate framework-67 (ZIF-67) on poly(acrylonitrile) (PAN) fibers and its potential application in CO<sub>2</sub> adsorption. Nanofibers were spun from a solution containing PAN and cobalt (II) nitrate hexahydrate using electrospinning. Then, the fibers were immersed in solution with 2-methylimidazole for different time durations. Via the diffusion of the cobalt ions through the fibers and interaction with the ligands in the solution, ZIF-67 was formed. From analysis via SEM, FTIR, PXRD, and CO<sub>2</sub> adsorption, it is evident that varying different parameters—the type of solvent, immersion time, and ligand concentration—affected the morphology of the formed ZIF-67. It was found that immersion for 4 h in 6.0 mg/mL of ligands in methanol created the ZIF-67@PAN best suited for CO<sub>2</sub> adsorption, showing a CO<sub>2</sub> uptake of 0.4 mmol/g at 1.2 bar and 273 K. |
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| institution | DOAJ |
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| language | English |
| publishDate | 2025-04-01 |
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| spelling | doaj-art-108958e11ed84afcb956fcaba57cfa102025-08-20T03:14:42ZengMDPI AGFibers2079-64392025-04-011355010.3390/fib13050050Preparation of ZIF-67@PAN Nanofibers for CO<sub>2</sub> Capture: Effects of Solvent and Time on Particle MorphologyGuilherme Henrique Franca Melo0Tiffany Yau1Yuxin Liu2Uttandaraman Sundararaj3Department of Chemical and Petroleum Engineering, University of Calgary, 2500 University Dr NW, Calgary, AB T2N 1N4, CanadaDepartment of Chemical and Petroleum Engineering, University of Calgary, 2500 University Dr NW, Calgary, AB T2N 1N4, CanadaDepartment of Chemical and Petroleum Engineering, University of Calgary, 2500 University Dr NW, Calgary, AB T2N 1N4, CanadaDepartment of Chemical and Petroleum Engineering, University of Calgary, 2500 University Dr NW, Calgary, AB T2N 1N4, CanadaAdvanced materials including metal–organic frameworks (MOFs) are a critical piece of the puzzle in the search for solutions to various scientific and technological challenges, such as climate change due to the ever-increasing emissions of greenhouse gas. There is intense interest in MOFs due to their potential use for a variety of environmental applications, including catalysis and gas storage. In this work, we specifically focus on the in situ growth of zeolitic imidazolate framework-67 (ZIF-67) on poly(acrylonitrile) (PAN) fibers and its potential application in CO<sub>2</sub> adsorption. Nanofibers were spun from a solution containing PAN and cobalt (II) nitrate hexahydrate using electrospinning. Then, the fibers were immersed in solution with 2-methylimidazole for different time durations. Via the diffusion of the cobalt ions through the fibers and interaction with the ligands in the solution, ZIF-67 was formed. From analysis via SEM, FTIR, PXRD, and CO<sub>2</sub> adsorption, it is evident that varying different parameters—the type of solvent, immersion time, and ligand concentration—affected the morphology of the formed ZIF-67. It was found that immersion for 4 h in 6.0 mg/mL of ligands in methanol created the ZIF-67@PAN best suited for CO<sub>2</sub> adsorption, showing a CO<sub>2</sub> uptake of 0.4 mmol/g at 1.2 bar and 273 K.https://www.mdpi.com/2079-6439/13/5/50electrospinningZIF-67solventsin situ growthCO<sub>2</sub> capture |
| spellingShingle | Guilherme Henrique Franca Melo Tiffany Yau Yuxin Liu Uttandaraman Sundararaj Preparation of ZIF-67@PAN Nanofibers for CO<sub>2</sub> Capture: Effects of Solvent and Time on Particle Morphology Fibers electrospinning ZIF-67 solvents in situ growth CO<sub>2</sub> capture |
| title | Preparation of ZIF-67@PAN Nanofibers for CO<sub>2</sub> Capture: Effects of Solvent and Time on Particle Morphology |
| title_full | Preparation of ZIF-67@PAN Nanofibers for CO<sub>2</sub> Capture: Effects of Solvent and Time on Particle Morphology |
| title_fullStr | Preparation of ZIF-67@PAN Nanofibers for CO<sub>2</sub> Capture: Effects of Solvent and Time on Particle Morphology |
| title_full_unstemmed | Preparation of ZIF-67@PAN Nanofibers for CO<sub>2</sub> Capture: Effects of Solvent and Time on Particle Morphology |
| title_short | Preparation of ZIF-67@PAN Nanofibers for CO<sub>2</sub> Capture: Effects of Solvent and Time on Particle Morphology |
| title_sort | preparation of zif 67 pan nanofibers for co sub 2 sub capture effects of solvent and time on particle morphology |
| topic | electrospinning ZIF-67 solvents in situ growth CO<sub>2</sub> capture |
| url | https://www.mdpi.com/2079-6439/13/5/50 |
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