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In Situ Synthesis of Graphene@cuprous Oxide Nanocomposite Incorporated Marine Antifouling Coating with Elevated Antifouling Performance

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Document pages: 16 pages

Abstract: In this paper, graphene@cuprous oxide (rGO@Cu2O)nanocomposite was designed and prepared with graphene oxide, CuSO4,NaOH and L-ascorbic acid via an in-situ reaction process, and the as-prepared rGO@Cu2O nanocomposite wascharacterized by XRD, FT-IR, Raman spectroscopy, XPS, SEM-EDS and TEM. Theresults reveal that the rGO@Cu2O nanocomposite is of homogeneousdistribution, and the Cu2O nanoparticles adsorbed on graphene sheetsare with a fairly uniform size of 2.3 nm. The rGO@Cu2O acrylic resinself-polishing marine antifouling paint with functional surfaces was alsoprepared in this work, and a series of measurements were carried out for theobtained product. The WCAs of paint is up to 113°, and the adhesive force isaveraged to 3.69 MPa. After being immersed into seawater, the whole bared panelsshow an abundant growth of marine organisms within 90 days, but the rGO@Cu2Opaint coated surfaces are hardly fouled by marine organisms within 365 days. Thiswork demonstrates that in situ synthesisof rGO@Cu2O is a tin-free potential alternative to inhibitbiofouling.

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