Mesoporous CdO/g-C₃N₄ nanocomposites have been constructed and applied in the photooxidation of ciprofloxacin (CIP) through illumination by visible light. The nanocomposite exhibits superior efficiency when compared to pure mesoporous CdO or pure g-C₃N₄. CdO incorporation onto g-C₃N₄ resulted in uniform dispersion of 7–13 nm onto layered g-C₃N₄ nanosheets. The photocatalytic CIP oxidation efficiency increased from 35% to 100% within 120 min with the use of 1–4% CdO/g-C₃N₄ nanocomposites. The photocatalytic CIP oxidation efficiency of the mesoporous 3.0% CdO/g-C₃N₄ nanocomposite is 4.5- and 10.0-fold greater than that of bare CdO and g-C₃N₄ nanosheets. Higher efficiency was a result of several factors: a perfect crystalline structure, a high surface area, a narrow bandgap, a mesoporous structure with uniformly dispersed CdO nanoparticles, and Z-scheme photocatalysis. The CdO/g-C₃N₄ photocatalyst was chemically stable and showed no reduction in efficiency after five applications. The findings exhibit a pathway for the fabrication of new materials that can promote Z-scheme photocatalysis with possible applications in pollutant remediation utilizing minimum energy due to the use of visible light.

已经构建了介孔 CdO/gC ₃ N ₄纳米复合材料，并通过可见光照射将其应用于环丙沙星 (CIP) 的光氧化。与纯介孔 CdO 或纯 gC ₃ N ₄相比，纳米复合材料表现出优异的效率。CdO 掺入gC ₃ N ₄导致7-13 nm 的均匀分散到分层的gC ₃ N ₄纳米片上。使用 1–4% CdO/gC ₃ N ₄纳米复合材料，光催化 CIP 氧化效率在 120 分钟内从 35% 增加到 100% 。介孔3.0% CdO/gC ₃的光催化CIP氧化效率N ₄纳米复合材料比裸CdO 和gC ₃ N ₄纳米片大4.5 倍和10.0 倍。更高的效率是几个因素的结果：完美的晶体结构、高表面积、窄带隙、具有均匀分散的 CdO 纳米颗粒的介孔结构和 Z 型光催化。CdO/gC ₃ N ₄光催化剂在化学上是稳定的，并且在五次应用后效率没有降低。这些发现展示了一种制造新材料的途径，该材料可以促进 Z 型光催化，并可能在污染物修复中应用，由于使用可见光，因此可以利用最小能量。