Flow synthesis of polycrystalline ZIF-8 membranes on polyvinylidene fluoride hollow fibers for recovery of hydrogen and propylene
It is highly desirable to prepare defect-free ZIF-8 membranes on commercially attractive scalable polymer hollow fibers, especially on the bore side of the fibers, yet quite challenging. Herein, we report a facile synthesis of well-intergrown ZIF-8 membranes on polyvinylidene fluoride (PVDF) microfi...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2020
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| Online Access: | http://psasir.upm.edu.my/id/eprint/89045/ http://psasir.upm.edu.my/id/eprint/89045/1/METAL.pdf |
| _version_ | 1848860759911563264 |
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| author | Abdul Hamid, Mohamad Rezi Jeong, Hae Kwon |
| author_facet | Abdul Hamid, Mohamad Rezi Jeong, Hae Kwon |
| author_sort | Abdul Hamid, Mohamad Rezi |
| building | UPM Institutional Repository |
| collection | Online Access |
| description | It is highly desirable to prepare defect-free ZIF-8 membranes on commercially attractive scalable polymer hollow fibers, especially on the bore side of the fibers, yet quite challenging. Herein, we report a facile synthesis of well-intergrown ZIF-8 membranes on polyvinylidene fluoride (PVDF) microfiltration hollow fibers by a secondary growth method. Surface modification using a strong base promoted high heterogeneous nucleation, resulting in densely packed ZIF-8 seed layers on the hollow fibers. The seed crystals were secondarily grown under a continuous flow of growth solution to form ZIF-8 membranes with thickness of ˜1.2 μm. The prepared ZIF-8 membranes achieved high gas permeances, reaching values of 16,344 × 10−10 mol m-2 s-1 Pa-1 for H2 and 197 × 10−10 mol m-2 s-1 Pa-1 for C3H6. The selectivities for H2/CH4, H2/C3H6, H2/C3H8 and C3H6/C3H8 gas pairs were found to be 12, 57, 160 and 15, respectively. We anticipate that the method could potentially be applied to transform commercial PVDF ultrafiltration/microfiltration hollow fibers commonly used for water separation into high quality ZIF-8 membranes for H2 purification and C3H6/C3H8 separation. |
| first_indexed | 2025-11-15T12:50:21Z |
| format | Article |
| id | upm-89045 |
| institution | Universiti Putra Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-15T12:50:21Z |
| publishDate | 2020 |
| publisher | Elsevier |
| recordtype | eprints |
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| spelling | upm-890452021-09-21T22:49:25Z http://psasir.upm.edu.my/id/eprint/89045/ Flow synthesis of polycrystalline ZIF-8 membranes on polyvinylidene fluoride hollow fibers for recovery of hydrogen and propylene Abdul Hamid, Mohamad Rezi Jeong, Hae Kwon It is highly desirable to prepare defect-free ZIF-8 membranes on commercially attractive scalable polymer hollow fibers, especially on the bore side of the fibers, yet quite challenging. Herein, we report a facile synthesis of well-intergrown ZIF-8 membranes on polyvinylidene fluoride (PVDF) microfiltration hollow fibers by a secondary growth method. Surface modification using a strong base promoted high heterogeneous nucleation, resulting in densely packed ZIF-8 seed layers on the hollow fibers. The seed crystals were secondarily grown under a continuous flow of growth solution to form ZIF-8 membranes with thickness of ˜1.2 μm. The prepared ZIF-8 membranes achieved high gas permeances, reaching values of 16,344 × 10−10 mol m-2 s-1 Pa-1 for H2 and 197 × 10−10 mol m-2 s-1 Pa-1 for C3H6. The selectivities for H2/CH4, H2/C3H6, H2/C3H8 and C3H6/C3H8 gas pairs were found to be 12, 57, 160 and 15, respectively. We anticipate that the method could potentially be applied to transform commercial PVDF ultrafiltration/microfiltration hollow fibers commonly used for water separation into high quality ZIF-8 membranes for H2 purification and C3H6/C3H8 separation. Elsevier 2020 Article PeerReviewed text en http://psasir.upm.edu.my/id/eprint/89045/1/METAL.pdf Abdul Hamid, Mohamad Rezi and Jeong, Hae Kwon (2020) Flow synthesis of polycrystalline ZIF-8 membranes on polyvinylidene fluoride hollow fibers for recovery of hydrogen and propylene. Journal of Industrial and Engineering Chemistry, 88. 319 - 327. ISSN 1226-086X https://www.sciencedirect.com/science/article/pii/S1226086X2030201X 10.1016/j.jiec.2020.04.031 |
| spellingShingle | Abdul Hamid, Mohamad Rezi Jeong, Hae Kwon Flow synthesis of polycrystalline ZIF-8 membranes on polyvinylidene fluoride hollow fibers for recovery of hydrogen and propylene |
| title | Flow synthesis of polycrystalline ZIF-8 membranes on polyvinylidene fluoride hollow fibers for recovery of hydrogen and propylene |
| title_full | Flow synthesis of polycrystalline ZIF-8 membranes on polyvinylidene fluoride hollow fibers for recovery of hydrogen and propylene |
| title_fullStr | Flow synthesis of polycrystalline ZIF-8 membranes on polyvinylidene fluoride hollow fibers for recovery of hydrogen and propylene |
| title_full_unstemmed | Flow synthesis of polycrystalline ZIF-8 membranes on polyvinylidene fluoride hollow fibers for recovery of hydrogen and propylene |
| title_short | Flow synthesis of polycrystalline ZIF-8 membranes on polyvinylidene fluoride hollow fibers for recovery of hydrogen and propylene |
| title_sort | flow synthesis of polycrystalline zif-8 membranes on polyvinylidene fluoride hollow fibers for recovery of hydrogen and propylene |
| url | http://psasir.upm.edu.my/id/eprint/89045/ http://psasir.upm.edu.my/id/eprint/89045/ http://psasir.upm.edu.my/id/eprint/89045/ http://psasir.upm.edu.my/id/eprint/89045/1/METAL.pdf |