Hierarchically Porous Cellulose Monolith Prepared by Combination of Ice-template Method and Non-solvent-induced Phase Separation Method

Hierarchically Porous Cellulose Monolith Prepared by Combination of Ice-template Method and Non-solvent-induced Phase Separation Method

Hierarchically cellulose monoliths were successfully prepared by non-solvent-induced phase separation (NIPS) without any template. Phase separation was induced by adding ethyl acetate into a cellulose/LiCl-DMAc system. The obtained cellulose monolith with a surface area of 30 m2 g−1 owned both mesop...

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Veröffentlicht in:Chemistry letters 2017-06, Vol.46 (6), p.792-794
Hauptverfasser: Sun, Xiaoxia, Wang, Kunpeng, Zhang, Boxing, Zou, Fangdong, Sun, Guangwu, Han, Wanli, Wang, Xinhou
Format: Artikel
Sprache:eng
Schlagworte:
Cellulose
Cellulose acetate
Ethyl acetate
Lithium chloride
Mechanical properties
Phase separation
Pore size
Porosity
Solvents
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Zusammenfassung:Hierarchically cellulose monoliths were successfully prepared by non-solvent-induced phase separation (NIPS) without any template. Phase separation was induced by adding ethyl acetate into a cellulose/LiCl-DMAc system. The obtained cellulose monolith with a surface area of 30 m2 g−1 owned both mesoporous and macroporous structures. The pore size of the cellulose monolith could be easily tuned by changing the cellulose concentration. Moreover, the cellulose monoliths showed excellent mechanical properties.
ISSN:0366-7022
1348-0715
DOI:10.1246/cl.170155