Jump to main content
Jump to site search


A facile ionic liquid approach to prepare cellulose-rich aerogels directly from corn stalks

Author affiliations

Abstract

Aerogels derived from corn stalks are promising materials for wide use, due to their biodegradability and biocompatibility. However, preparation of cellulose-rich aerogels directly from corn stalks is a tedious and complicated process. In this study, generation of cellulose-rich aerogels was achieved by a facile approach relying on an ionic liquid and amido-sulfonic acid used as solvents. By this method, cellulose-rich aerogels were directly obtained from corn stalks through a process whereby lignin was separated from the other components of the corn stalks in one step, an approach simplifying the traditional fabrication processes. The composition, morphology and thermal stability of the obtained aerogels were investigated as they were related to the ionic liquid solvent systems used. Furthermore, the dye adsorption mechanism of cellulose-rich aerogels was simulated. In the most favourable case, the obtained aerogel was free of lignin and had the cellulose content as high as 88.1%. In addition, the aerogel possessed a porous three-dimensional structure with a high specific area (201 m2 g−1) and good thermal stability. Owing to its excellent properties, this cellulose-rich porous aerogel is expected to have a potential use in dye adsorption and other fields. This aerogel displayed an absorption capacity of 549 mg g−1 for Congo red and 302 mg g−1 for Coomassie brilliant blue.

Graphical abstract: A facile ionic liquid approach to prepare cellulose-rich aerogels directly from corn stalks

Back to tab navigation

Supplementary files

Publication details

The article was received on 24 Jan 2019, accepted on 09 Apr 2019 and first published on 11 Apr 2019


Article type: Paper
DOI: 10.1039/C9GC00282K
Citation: Green Chem., 2019, Advance Article

  •   Request permissions

    A facile ionic liquid approach to prepare cellulose-rich aerogels directly from corn stalks

    X. Li, X. Lu, J. Yang, Z. Ju, Y. Kang, J. Xu and S. Zhang, Green Chem., 2019, Advance Article , DOI: 10.1039/C9GC00282K

Search articles by author

Spotlight

Advertisements