Issue 66, 2015

Few-layer graphene based sponge as a highly efficient, recyclable and selective sorbent for organic solvents and oils

Abstract

In this work, we illustrate a facile and economical strategy for the bulk production of aqueous few layer graphene (FLG) dispersions via a simple grinding method. The as-prepared FLG suspensions can be cast on various substrates through facile dip coating. The environmentally friendly one-step procedure can produce graphene-based surfaces easily without additional reduction reaction. Here, we also prepare the FLG-based sponges with both superhydrophobic and superoleophilic properties. The FLG-sponges have been demonstrated as efficient absorbents for a broad range of oils and organic chemicals with high selectivity and excellent recyclability. The FLG-sponges deliver an absorption capacity as high as 153 g g−1 for the chloroform. The results indicate that the FLG sponges may potentially be useful as next-generation oil adsorbent materials.

Graphical abstract: Few-layer graphene based sponge as a highly efficient, recyclable and selective sorbent for organic solvents and oils

Supplementary files

Article information

Article type
Paper
Submitted
15 Apr 2015
Accepted
09 Jun 2015
First published
10 Jun 2015

RSC Adv., 2015,5, 53741-53748

Author version available

Few-layer graphene based sponge as a highly efficient, recyclable and selective sorbent for organic solvents and oils

E. Cho, Y. Hsiao, K. Lee and J. Huang, RSC Adv., 2015, 5, 53741 DOI: 10.1039/C5RA06737E

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