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In the present study, the application of graphene-coated polyurethane (PU) sponge for the selective absorption of oil spills from water was carefully investigated. Nanoporous graphene (NPG), prepared by the chemical vapor deposition (CVD) method, and graphene oxide (GO) flakes produced by a modified Hummer’s method, were individually integrated with the porous texture of PU, leading to NPG/PU and...