Abstract
The development of amphiphobic graphene aerogels (AGAs) with simpler fabrication procedure is of great significance to its real-life applications. Herein, we demonstrate the preparation of AGAs via one-pot hydrothermal method and their amphiphobic performance. AGAs exhibited a 3D porous structure with a low density, high surface area and porosity. Upon modification with fluorosilane, fluorosilanol groups with low surface energy grafted to graphene and tiny wrinkles were formed on the surface of graphene sheets, which was beneficial for the amphiphobic performance of AGAs. The water and oil contact angles of AGAs were 146.1° and 92.2°, respectively. When AGAs immersed in water or oil by application of an external force, they float immediately on water or oil surface without absorption of any water or oil, exhibiting excellent water/oil-repellency. The amphiphobic performance of aerogels can be exploited in a variety of applications, such as self-cleaning, anti-fouling and anti-fingerprint.
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