Photogenerated cathodic protection properties of Ag/NiS/TiO2 nanocomposites
Ning Wang, Jing Wang, Yanli Ning, Chengyue Ge, Baorong Hou, Qianyu Zhao, Yiteng Hu
Abstract
Abstract TiO 2 is a semiconductor material used in photoelectric conversion. In order to improve its light utilization rate, nickel sulfide and silver nanoparticles were synthesized on the surface of titanium dioxide nanowires by simple impregnation-deposition and photoreduction methods. A series of studies were conducted on the cathodic protection effect of Ag/NiS/TiO 2 nanocomposites on 304 stainless steel, with additional analyses on the material’s morphology, composition, and light absorption characteristics. The results indicate that when the number of nickel sulfide impregnation-deposition cycles is 6, and the silver nitrate photoreduction concentration is 0.1 M, the prepared Ag/NiS/TiO 2 nanocomposites can provide the best cathodic protection for 304 stainless steel.