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  • Construction and sorption properties of pyrene-based porous aromatic frameworks

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    Author(s)
    Yan, Zhuojun
    Ren, Hao
    Ma, Heping
    Yuan, Rongrong
    Yuan, Ye
    Zou, Xiaoqin
    Sun, Fuxing
    Zhu, Guangshan
    Griffith University Author(s)
    Zhu, Guangshan
    Year published
    2013
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    Abstract
    We report here pyrene-based ?uorescent porous aromatic frameworks (PAF-19 and PAF-20), which are constructed by a quadrilateral building unit 1,3,6,8-tetrabromopyrene (TBrPy) with linkers 1,4-diethynylbenzene and 1,3,5-triethynylbenzene via Sonogashira-Hagihara coupling reaction, respectively. TG analysis shows that PAF-19 and PAF-20 are thermally stable up to 350 C in air condition. Both materials also exhibit high chemical stability and cannot dissolve or decompose in any common organic solvents. N2 sorption results reveal that the BET surface areas of PAF-19 and PAF-20 are 250 m2 g -1 and 702 m2 g- 1, respectively. ...
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    We report here pyrene-based ?uorescent porous aromatic frameworks (PAF-19 and PAF-20), which are constructed by a quadrilateral building unit 1,3,6,8-tetrabromopyrene (TBrPy) with linkers 1,4-diethynylbenzene and 1,3,5-triethynylbenzene via Sonogashira-Hagihara coupling reaction, respectively. TG analysis shows that PAF-19 and PAF-20 are thermally stable up to 350 C in air condition. Both materials also exhibit high chemical stability and cannot dissolve or decompose in any common organic solvents. N2 sorption results reveal that the BET surface areas of PAF-19 and PAF-20 are 250 m2 g -1 and 702 m2 g- 1, respectively. They also display relatively high sorption abilities for hydrogen and carbon dioxide. H2O sorption measurements demonstrate that the skeletons of PAF-19 and PAF-20 are highly hydrophobic. Interestingly, PAF-19 and PAF-20 exhibit excellent sorption abilities to organic chemical pollutants at the saturated vapor pressure and room temperature. PAF-20 can adsorb large amounts of methanol and benzene, with values of 609 mg g- 1 and 1038 mg g- 1, respectively. The good performances of PAF-19 and PAF-20 with high sorption selectivity promise their potential application for eliminating environmental pollutants in presence of H2O.
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    Journal Title
    Microporous and Mesoporous Materials
    Volume
    173
    DOI
    https://doi.org/10.1016/j.micromeso.2013.02.006
    Copyright Statement
    © 2013 Elsevier Inc. This is the author-manuscript version of this paper. Reproduced in accordance with the copyright policy of the publisher. Please refer to the journal's website for access to the definitive, published version.
    Subject
    Chemical sciences
    Organic chemical synthesis
    Organic chemistry not elsewhere classified
    Engineering
    Publication URI
    http://hdl.handle.net/10072/53482
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    • Journal articles

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