Issue 41, 2014
From the journal:

RSC Advances

Ultra-light nanocomposite aerogels of bacterial cellulose and reduced graphene oxide for specific absorption and separation of organic liquids†

Yonggui Wang,‡a   Sandeep Yadav,‡b   Thorsten Heinlein,b   Valentino Konjik,a   Hergen Breitzke,c   Gerd Buntkowsky,c   Jörg J. Schneider*b  and  Kai Zhang*a  

* Corresponding authors

a Ernst-Berl-Institute for Chemical Engineering and Macromolecular Science, Technische Universität Darmstadt, Alarich-Weiss-Straße 8, D-64287 Darmstadt, Germany
E-mail: zhang@cellulose.tu-darmstadt.de

b Inorganic Chemistry, Eduard-Zintl-Institute for Inorganic Chemistry and Physical Chemistry, Technische Universität Darmstadt, Alarich-Weiss-Straße 12, D-64287 Darmstadt, Germany
E-mail: joerg.schneider@ac.chemie.tu-darmstadt.de

c Physical Chemistry, Eduard-Zintl-Institute for Inorganic Chemistry and Physical Chemistry, Technische Universität Darmstadt, Alarich-Weiss-Straße 4, D-64287 Darmstadt, Germany

Abstract

Novel materials based on sustainable materials with high absorption capacity are still rare for the separation of organic liquids or oil spills and water. In this report, ultra-light nanocomposite aerogels consisting of sustainable bacterial cellulose (BC) and graphene oxide (GO) were constructed after an eco-friendly freeze-drying process for the first time. Due to the hydrophilic properties of both materials and the highly porous structure, BC/GO aerogels could highly absorb not only organic liquids, such as cyclohexane and DMF, but also water. Specific absorption for organic liquids was achieved after the reduction of GO using H2 gas, which led to nanocomposite aerogels of BC and reduced GO. They could specifically absorb 135–150 g organic liquids per g of their own weight, even with a high content of 80% BC in the nanocomposite aerogel.

Graphical abstract: Ultra-light nanocomposite aerogels of bacterial cellulose and reduced graphene oxide for specific absorption and separation of organic liquids

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Article information

DOI
https://doi.org/10.1039/C4RA02168A
Article type
Communication
Submitted
12 Mar 2014
Accepted
29 Apr 2014
First published
29 Apr 2014
This article is Open Access
Creative Commons BY license

RSC Adv., 2014,4, 21553-21558

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Ultra-light nanocomposite aerogels of bacterial cellulose and reduced graphene oxide for specific absorption and separation of organic liquids

Y. Wang, S. Yadav, T. Heinlein, V. Konjik, H. Breitzke, G. Buntkowsky, J. J. Schneider and K. Zhang, RSC Adv., 2014, 4, 21553 DOI: 10.1039/C4RA02168A

This article is licensed under a Creative Commons Attribution 3.0 Unported Licence. You can use material from this article in other publications without requesting further permissions from the RSC, provided that the correct acknowledgement is given.

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