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

作者：Yue Liu, Junkui Ma, Tao Wu, Xingrui Wang, Guanbo Huang, Yu Liu, Haixia Qiu, Yi Li, Wei Wang, Jianping Gao · 发表于：ACS Applied Materials & Interfaces · 年份：2013 · DOI：10.1021/am4024252 · 被引用次数：453 · 研究领域：Surface Modification and Superhydrophobicity、Electrohydrodynamics and Fluid Dynamics、Electrospun Nanofibers in Biomedical Applications

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.