Cost-Effective Reduced Graphene Oxide-Coated Polyurethane Sponge As a Highly Efficient and Reusable Oil-Absorbent

Reduced graphene oxide coated polyurethane (rGPU) sponges were fabricated by a facile method. The structure and properties of these rGPU sponges were characterized by Fourier transform infrared spectroscopy, thermal gravimetric analysis, X-ray diffraction, and scanning electron microscopy. The rGPU...

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Bibliographic Details
Published in:ACS applied materials & interfaces 2013-10, Vol.5 (20), p.10018-10026
Main Authors: Liu, Yue, Ma, Junkui, Wu, Tao, Wang, Xingrui, Huang, Guanbo, Liu, Yu, Qiu, Haixia, Li, Yi, Wang, Wei, Gao, Jianping
Format: Article
Language:English
Subjects:
Adsorption
Graphite - chemistry
Hydrophobic and Hydrophilic Interactions
Oils - chemistry
Oxides - chemistry
Polyurethanes - chemistry
Porosity
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Summary:Reduced graphene oxide coated polyurethane (rGPU) sponges were fabricated by a facile method. The structure and properties of these rGPU sponges were characterized by Fourier transform infrared spectroscopy, thermal gravimetric analysis, X-ray diffraction, and scanning electron microscopy. The rGPU sponges are hydrophobic and oleophilic and show extremely high absorption for organic liquids. For all the organic liquids tested, the absorption capacities were higher than 80 g g–1 and 160 g g–1 (the highest value) was achieved for chloroform. In addition, the absorption capacity of the rGPU sponge did not deteriorate after it was reused 50 times, so the rGPU sponge has excellent recyclability.
ISSN:1944-8244
1944-8252
DOI:10.1021/am4024252