期刊
MICROPOROUS AND MESOPOROUS MATERIALS
卷 323, 期 -, 页码 -出版社
ELSEVIER
DOI: 10.1016/j.micromeso.2021.111233
关键词
MOF; Polymer fiber; Adsorption; Microwave reaction; Crystal growth; Electrospinning
类别
资金
- Basic Science Research Program through the National Research Foundation of Korea (NRF) - Korea government (MSIT) [NRF-2021R1F1A1045789]
- Cooperative R&D between Industry, Academy, and Research Institute - Korea Ministry of SMEs and Startups [S2927353]
- Korea Technology & Information Promotion Agency for SMEs (TIPA) [S2927353] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
A novel flexible PAN fiber adsorbent was developed using UTSA-16 (Co) and UTSA-16 (Zn) metal organic frameworks. The fiber mats exhibit high CO2 adsorption capacities and selectivity, with PAN/UTSA-16 (Zn) fibers showing better stability under various environmental conditions. Additionally, the PAN/UTSA-16 fibers demonstrate excellent recyclability during multiple adsorption-desorption cycles.
A novel flexible PAN fiber adsorbent was developed using an electrospinning technique with UTSA-16 (Co) and UTSA-16 (Zn) metal organic frameworks (MOFs). MOF powders with different ratios were dispersed within PAN fiber networks and processed to produce MOF crystalline layers under microwave irradiation for the seeded growth of MOFs. The PAN/UTSA-16 (Co) and (Zn) fiber mats exhibit 75% and 78% of the CO2 adsorption capacities of pristine UTSA-16 (Co) and UTSA-16 (Zn), respectively, while a high CO2/N2 selectivity of 113-128 is preserved. Stability experiments show that PAN/UTSA-16 (Zn) fibers are more robust under humid air, NO2, and SO2 environments compared to PAN/UTSA-16 (Co). Additionally, the PAN/UTSA-16 fibers show excellent recyclability during ten adsorption-desorption cycles at 298 and 393 K. Morphology, porous properties, and crystallinity of the PAN/UTSA-16 fibers were examined using SEM, BET, and XRD.
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