制备了还原氧化石墨烯(rGO)@氧化银共同改性TiO2基复合材料(rGO@Ag2O/TiO2),并研究了其可见光催化性能。结果表明,三元复合材料rGO@Ag2O/TiO2的可见光催化性能远优于一元纳米材料TiO2和二元复合材料rGO/TiO2、Ag2O/TiO2,当可见光照射120min后,溶液中约100%的罗丹明B分子被rGO@Ag2O/TiO2降解。三元复合材料rGO@Ag2O/TiO2可见光催化效率的提高主要源于窄带隙半导体Ag2O和高电导率材料rGO的引入,使形成的三元复合材料rGO@Ag2O/TiO2具有强的可见光吸收能力和光生电子空穴对分离能力。 (RGO @ Ag2O / TiO2) modified by reduced graphene oxide (rGO) @ silver oxide was prepared and its photocatalytic activity was studied. The results show that the photocatalytic activity of ternary composite material rGO @ Ag2O / TiO2 is much better than that of monobasic nanomaterials TiO2 and binary composites rGO / TiO2 and Ag2O / TiO2. When visible light is irradiated for 120min, the photocatalytic activity of rGO @ Ag2O / TiO2 is about 100% The B molecule is degraded by rGO @ Ag2O / TiO2. The improvement of visible light photocatalytic efficiency of the ternary composite rGO @ Ag2O / TiO2 was mainly attributed to the introduction of narrow-bandgap semiconductor Ag2O and high conductivity rGO, which led to the formation of the ternary composite rGO @ Ag2O / TiO2 with strong visible light absorption capacity and photogenerated Electron hole pair separation ability.