Abstract Novel g-C3N4/Ag2CrO4/AgI nanocomposites with improved photocatalytic performance under visible light were synthesized by consecutive deposition of Ag2CrO4 and AgI semiconductors over g-C3N4 sheets by refluxing method. The synthesized g-C3N4/Ag2CrO4/AgI photocatalysts were fully characterized by XRD, EDX, SEM, TEM, UV–vis DRS, TGA, FT-IR, and PL instruments. Photocatalytic performance of g-C3N4/Ag2CrO4/AgI (30%) nanocomposite for degradation of RhB was 27.9, 4.0, and 3.1 folds greater than those of the g-C3N4, g-C3N4/Ag2CrO4 (20%), and g-C3N4/AgI (30%) photocatalysts, respectively. The substantially increased photocatalytic performance was related to efficient retardation of the charge carriers from recombination and more absorbing of visible light, due to the synergistic effects of Ag2CrO4 and AgI on g-C3N4. The photocatalytic performance of the ternary nanocomposite did not considerably change after several cycles, indicating that the ternary nanocomposite is stable and it could be reused in successive runs.

中文翻译：

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Ag 2 CrO 4 和AgI半导体与gC 3 N 4 的组合：在可见光下具有显着改善的光催化性能的新型纳米复合材料

摘要 通过回流法在g-C3N4片材上连续沉积Ag2CrO4和AgI半导体，合成了新型g-C3N4/Ag2CrO4/AgI纳米复合材料，该复合材料在可见光下具有更高的光催化性能。合成的 g-C3N4/Ag2CrO4/AgI 光催化剂通过 XRD、EDX、SEM、TEM、UV-vis DRS、TGA、FT-IR 和 PL 仪器进行了充分表征。g-C3N4/Ag2CrO4/AgI (30%) 纳米复合材料降解 RhB 的光催化性能是 g-C3N4、g-C3N4/Ag2CrO4 (20%) 和 g-C3N4 的 27.9、4.0 和 3.1 倍/AgI (30%) 光催化剂。由于 Ag2CrO4 和 AgI 对 g-C3N4 的协同作用，显着提高的光催化性能与有效阻滞电荷载流子复合和更多吸收可见光有关。