Abstract：
Fluorescent antifouling and photocatalytic antifouling technologies have shown potential in the field of marine antifouling. SLAP@g-C3N4/PDMS (SLAP@CN/PDMS) composite antifouling coatings were designed and prepared using g-C3N4, sky-blue long afterglow phosphor (SLAP), and polydimethylsiloxane (PDMS). The fluorescence emitted by SLAP under dark conditions was used to excite g-C3N4 for fluorescent photocatalysis and to prolong the photocatalytic activity of g-C3N4. Key data were collected by testing and characterization and are presented in this work. The results showed that g-C3N4 was successfully coated on the SLAP surface and formed a heterogeneous structure. After the composite powder was added to the PDMS coating, the coating maintained low surface energy but enhanced the surface roughness of the coating. The experimental results of degraded Rhodamine B (RhB) showed that SLAP prolonged the g-C3N4 photocatalytic activity time. The anti-marine bacterial adhesion performance of the coating was investigated by bacterial adhesion experiments. The results showed that SLAP@CN could effectively improve the anti-bacterial adhesion performance of PDMS coating, in which the anti-bacterial adhesion performance of SLAP@CN-2.5/PDMS was improved by nearly 19 times. This antifouling coating introduces fluorescent antifouling, photocatalytic antifouling, and fluorescence-driven photocatalytic antifouling based on the low surface energy antifouling of silicones and achieves \"all-weather\" fluorescent photocatalytic antifouling.
摘要：
荧光防污和光催化防污技术在海洋防污领域显示出潜力。SLAP@g-C3N4/PDMS(SLAP@CN/PDMS)复合防污涂料采用g-C3N4天蓝色长余辉荧光粉(SLAP)设计制备,和聚二甲基硅氧烷(PDMS)。SLAP在黑暗条件下发射的荧光用于激发g-C3N4进行荧光光催化，并延长g-C3N4的光催化活性。通过测试和表征收集关键数据，并在这项工作中提出。结果表明，g-C3N4成功地涂覆在SLAP表面并形成异质结构。在将复合粉末添加到PDMS涂层中之后，涂层保持低表面能，但提高了涂层的表面粗糙度。降解罗丹明B（RhB）的实验结果表明，SLAP延长了g-C3N4的光催化活性时间。通过细菌粘附实验研究了涂层的抗海洋细菌粘附性能。结果表明,SLAP@CN能有效提高PDMS涂层的抗菌粘附性能,其中SLAP@CN-2.5/PDMS的抗菌粘附性能提高了近19倍。这种防污涂层引入了荧光防污，光催化防污,基于有机硅的低表面能防污，实现了“全天候”荧光光催化防污。
