期刊
MACROMOLECULAR MATERIALS AND ENGINEERING
卷 308, 期 6, 页码 -出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/mame.202200645
关键词
cyclodextrin-based metal organic framework; growth rate; in situ growth; reusability; SO2 adsorbents
In situ growth of cyclodextrin-based metal-organic frameworks (CD-MOFs) on poly(ethylene terephthalate) fibers (CD-MOFs-PET) was investigated for the effective fabrication of MOF composites. The CD-MOFs-PET with 24 h growth time exhibited the highest surface area without crystal deformation, achieving a specific surface area 235 times higher than pristine PET fibers. The 24 h CD-MOFs-PET showed efficient removal of PM0.1 and SO2 gas, with removal efficiencies higher than 99% and 95% respectively. Furthermore, the CD-MOFs-PET demonstrated high recovery of SO2 adsorption ability through repeated adsorption-desorption cycles.
In situ growth of cyclodextrin-based metal-organic frameworks (CD-MOFs) is investigated for the effective fabrication of MOF composites through the vapor diffusion method combined with O-2 plasma treatment. The growth rate of gamma-CD-MOFs on poly(ethylene terephthalate) fibers (CD-MOFs-PET) is determined for 136 h, and the CD-MOFs-PET with 24 h growth time shows the highest surface area without crystal deformation. The specific surface area of the CD-MOFs-PET with 24 h growth time is 142.88 m(2) g(-1), which is 235 times higher than the pristine PET fibers. The 24 h CD-MOFs-PET shows removal efficiencies higher than 99% for PM0.1 and higher than 95% for SO2 gas. The CD-MOFs-PET demonstrates high recovery of SO2 adsorption ability by the repeated adsorption-desorption cycles, maintaining up to 90% of initial adsorption performance. This study intends to provide an informative discussion of the applicability of textile-based CD-MOFs and the development of reusable filters for the removal of SO2.
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