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Issue 11, 2012
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Highly mesoporous organic aerogels derived from soy and tannin

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Abstract

The first organic aerogels natural at the 91% level, based on soy and tannin, are reported. Such materials were prepared from denatured soy protein which was formylated, crosslinked with flavonoid tannin at different pHs, gelled and cured at 85 °C, and finally dried with supercritical CO2. The resultant aerogels presented both low bulk density and high mesopore volumes. Morphology, pore texture, chemical structure and thermal performances have been investigated by SEM, envelope and helium pycnometry, nitrogen adsorption at 77 K, FTIR, elemental analysis, XPS, NMR and hot disk transient plane source methods, respectively. We show that soy–tannin aerogels are among the “greenest” organic aerogels combining low cost, renewable character, highly developed mesopore texture and good thermal performances.

Graphical abstract: Highly mesoporous organic aerogels derived from soy and tannin

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Publication details

The article was received on 16 Mar 2012, accepted on 16 Aug 2012 and first published on 16 Aug 2012


Article type: Paper
DOI: 10.1039/C2GC36263E
Citation: Green Chem., 2012,14, 3099-3106

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    Highly mesoporous organic aerogels derived from soy and tannin

    G. Amaral-Labat, L. Grishechko, A. Szczurek, V. Fierro, A. Pizzi, B. Kuznetsov and A. Celzard, Green Chem., 2012, 14, 3099
    DOI: 10.1039/C2GC36263E

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