摘要
Pure Zn coatings easily lose their protective performance after biofouling because they have no antibacterial effect under visible light.In this study,we fabricate a new antibacterial Zn composite coating using electrodeposition to couple Fe3+-doped alkalized g-C_(3)N_(4)(AKCN-Fe)into an existing Zn coating and show that the AKCN-Fe enhances antibacterial property of the Zn coating under visible light.We attribute this enhancement to the high photocatalytic performance,high loading content,and good dispersion of AKCN-Fe.In addition,the photocatalytic antibacterial mechanism of the composite coating is supported by scavenger experiments and electron paramagnetic resonance(EPR)measurements,suggesting that superoxide(·O_(2)^(-))and hydroxyl radical(·OH)play main and secondary roles,respectively.
基金
financially supported by the National Natural Science Foundation of China(No.41706080)
the Basic Frontier Science Research Program of the Chinese Academy of Sciences(No.ZDBS-LYDQC025)
the Strategic Leading Science and Technology Program of the Chinese Academy of Sciences(No.XDA13040403)
the Shandong Key Laboratory of Corrosion Science。
