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)
Year published
2013
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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. ...
View more >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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View more >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
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