A Highly Efficient Absorbent for Various Organic Solvents Using Hydrophobic Graphene–Sponge Composite
We propose a hydrophobic graphene–sponge composite produced by embedding graphene flakes within polyurethane sponge as a selective absorbent for hydrophobic liquids from a contaminated water mixture. The self-aggregation nature of graphene flakes effectively allows higher graphene
content to be added inside the polyurethane sponge with repeated dip-coating. High hydrophobicity due to the intrinsic nature graphene surface allows the selective absorption of liquid contaminants from a water mixture. Given the porous structure of the composite, absorption capability of
134–233 times its own weight towards various hydrophobic liquids is possible.
Keywords: Graphene Absorbent; Graphene Composite; Graphene Sponge Composite; Hydrophobic Coating; Oil Absorbent
Document Type: Research Article
Affiliations: Department of Electronics and Computer Engineering, Hanyang University, Seoul 04763, Korea
Publication date: 01 October 2019
- Journal for Nanoscience and Nanotechnology (JNN) is an international and multidisciplinary peer-reviewed journal with a wide-ranging coverage, consolidating research activities in all areas of nanoscience and nanotechnology into a single and unique reference source. JNN is the first cross-disciplinary journal to publish original full research articles, rapid communications of important new scientific and technological findings, timely state-of-the-art reviews with author's photo and short biography, and current research news encompassing the fundamental and applied research in all disciplines of science, engineering and medicine.
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