BiOIO₃/GO composite photocatalyst was successfully prepared by hydrothermal method and magnetic stirring method. The prepared photocatalyst was characterized by SEM, TEM, XRD, UV–Vis DRS, FT-IR and XPS. Fluorocarbon resin coating (PEVE) was modified with composite photocatalyst, the antibacterial properties of the composite coatings with different doping ratios of GO were evaluated. Among them, the composite coating BiOIO₃/6 wt% GO has the highest sterilization rate, which is nearly doubled compared to the pure BiOIO₃ coating. Hydroxyl radicals (⋅OH) can be demonstrated as the main active species in the photocatalytic reaction. The mechanism of improving the photocatalytic efficiency was proposed. This paper provides some new insights on the development of marine antifouling coatings, and has certain reference significance for the treatment of ship's ballast water.

采用水热法和磁力搅拌法成功制备了BiOIO ₃ /GO复合光催化剂。通过SEM、TEM、XRD、UV-Vis DRS、FT-IR和XPS对制备的光催化剂进行表征。用复合光催化剂对氟碳树脂涂层（PEVE）进行改性，评价了不同GO掺杂比例的复合涂层的抗菌性能。其中，复合涂层BiOIO ₃ /6 wt% GO的杀菌率最高，与纯BiOIO ₃涂层相比，杀菌率提高近一倍。羟基自由基 ( ⋅OH) 可以证明是光催化反应中的主要活性物质。提出了提高光催化效率的机理。该论文为船用防污涂料的发展提供了一些新的见解，对船舶压载水的处理具有一定的参考意义。