CuO/g-C₃N₄ nanocomposite photocatalyst has been synthesized by co-precipitation method and analyzed its performance in the photoelectrochemical water splitting application. X-ray diffraction analyses and Raman measurement confirms the presence of CuO. Scanning electron microscope image shows rod shape morphology. The CuO/g-C₃N₄ nanocomposite exhibit the wide range of visible light absorbance and the bandgap of the material is 1.64 eV. Room temperature photoluminescence measurement reveals the presence of CuO charge transfer emission and LUMO – HUMO transition of g-C₃N₄. The CuO/g-C₃N₄ composite shows improved photocatalytic water splitting under visible light illumination. This could be attributed to the higher visible light absorbance and reduction in the recombination rate. The CuO/g-C₃N₄ nanocomposite electrode shows a highly stable photocurrent response.

通过共沉淀法合成了CuO / gC ₃ N ₄纳米复合光催化剂，并分析了其在光电化学水分解应用中的性能。X射线衍射分析和拉曼测量证实了CuO的存在。扫描电子显微镜图像显示棒状形态。CuO / gC ₃ N ₄纳米复合材料表现出广泛的可见光吸收率，并且该材料的带隙为1.64 eV。室温光致发光测量揭示了gC ₃ N ₄存在CuO电荷转移发射和LUMO-HUMO跃迁。CuO / gC ₃ N ₄复合材料在可见光照射下显示出改进的光催化水分解。这可以归因于较高的可见光吸收和重组率的降低。CuO / gC ₃ N ₄纳米复合电极显示出高度稳定的光电流响应。