Highly porous aerogels based on imine chemistry: syntheses and sorption propertiesElectronic supplementary information (ESI) available: Experimental details, SEM images, PXRD patterns, IR spectra, TG curves and additional sorption data. See DOI: 10.1039/c5ta00557d
A series of novel aerogels have been obtained based on imine chemistry. The aerogels were prepared by polycondensation of various bridging aldehydes and amines via a sol-gel process. The imine aerogels of tetrakis-(4-aminophenyl)methane (A1) consist of three-dimensional networks of interconnected na...
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Language | English |
Published |
12.05.2015
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Abstract | A series of novel aerogels have been obtained based on imine chemistry. The aerogels were prepared by polycondensation of various bridging aldehydes and amines
via
a sol-gel process. The imine aerogels of tetrakis-(4-aminophenyl)methane (A1) consist of three-dimensional networks of interconnected nanometer-sized particles with hierarchically porous structures. The porosity of the areogels is tuneable by the choice of precursors, precursor concentration and reaction solvent. The aerogels exhibit BET surface areas up to 1021 m
2
g
−1
(A1-biformyl aerogel A1B1-0.030), as measured by N
2
adsorption at 77 K. The A1B1-0.030 aerogel possesses a CO
2
uptake of 1.5 mmol g
−1
at 298 K and 1.0 bar with an isosteric heat of 38.1 kJ mol
−1
and displays high CO
2
/N
2
selectivity up to 70.9, which is derived from the ideal adsorbed solution theory. The A1B1-0.030 aerogel also shows a good capacity to uptake aromatic toluene molecules from an aqueous solution. Moreover, the hierarchically porous structure endows the A1B1-0.030 aerogel with good performance in enrichment of large molecules (polycyclic aromatic hydrocarbons PAHs and organochlorine pesticides OCPs) as the coating adsorbent in solid-phase microextraction (SPME) fibres.
A series of novel imine aerogels have been obtained based on dynamic covalent chemistry that show high porosity and good sorption performance. |
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AbstractList | A series of novel aerogels have been obtained based on imine chemistry. The aerogels were prepared by polycondensation of various bridging aldehydes and amines
via
a sol-gel process. The imine aerogels of tetrakis-(4-aminophenyl)methane (A1) consist of three-dimensional networks of interconnected nanometer-sized particles with hierarchically porous structures. The porosity of the areogels is tuneable by the choice of precursors, precursor concentration and reaction solvent. The aerogels exhibit BET surface areas up to 1021 m
2
g
−1
(A1-biformyl aerogel A1B1-0.030), as measured by N
2
adsorption at 77 K. The A1B1-0.030 aerogel possesses a CO
2
uptake of 1.5 mmol g
−1
at 298 K and 1.0 bar with an isosteric heat of 38.1 kJ mol
−1
and displays high CO
2
/N
2
selectivity up to 70.9, which is derived from the ideal adsorbed solution theory. The A1B1-0.030 aerogel also shows a good capacity to uptake aromatic toluene molecules from an aqueous solution. Moreover, the hierarchically porous structure endows the A1B1-0.030 aerogel with good performance in enrichment of large molecules (polycyclic aromatic hydrocarbons PAHs and organochlorine pesticides OCPs) as the coating adsorbent in solid-phase microextraction (SPME) fibres.
A series of novel imine aerogels have been obtained based on dynamic covalent chemistry that show high porosity and good sorption performance. |
Author | Liu, Haoliang Zhang, Jianyong Li, Siyan Su, Cheng-Yong Liu, Liping Lin, Minjuan Chen, Liuping Ouyang, Gangfeng |
AuthorAffiliation | MOE Laboratory of Bioinorganic and Synthetic Chemistry MOE Key Laboratory of Polymeric Composite and Functional Materials Sun Yat-Sen University School of Chemistry and Chemical Engineering |
AuthorAffiliation_xml | – name: School of Chemistry and Chemical Engineering – name: MOE Laboratory of Bioinorganic and Synthetic Chemistry – name: MOE Key Laboratory of Polymeric Composite and Functional Materials – name: Sun Yat-Sen University |
Author_xml | – sequence: 1 givenname: Jianyong surname: Zhang fullname: Zhang, Jianyong – sequence: 2 givenname: Liping surname: Liu fullname: Liu, Liping – sequence: 3 givenname: Haoliang surname: Liu fullname: Liu, Haoliang – sequence: 4 givenname: Minjuan surname: Lin fullname: Lin, Minjuan – sequence: 5 givenname: Siyan surname: Li fullname: Li, Siyan – sequence: 6 givenname: Gangfeng surname: Ouyang fullname: Ouyang, Gangfeng – sequence: 7 givenname: Liuping surname: Chen fullname: Chen, Liuping – sequence: 8 givenname: Cheng-Yong surname: Su fullname: Su, Cheng-Yong |
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Notes | 10.1039/c5ta00557d Electronic supplementary information (ESI) available: Experimental details, SEM images, PXRD patterns, IR spectra, TG curves and additional sorption data. See DOI |
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Title | Highly porous aerogels based on imine chemistry: syntheses and sorption propertiesElectronic supplementary information (ESI) available: Experimental details, SEM images, PXRD patterns, IR spectra, TG curves and additional sorption data. See DOI: 10.1039/c5ta00557d |
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