In this research study, WO₃/NaNbO₃-coupled photocatalysts were synthesized at three WO₃ mass ratios (15, 85, and 95 wt%) and characterized. These composites were characterized via X-ray powder diffraction, N₂ physisorption, UV–Vis diffuse reflectance spectroscopy, scanning electron microscopy, X-ray photoelectron spectroscopy, Raman spectroscopy, transmission electron microscopy, and photoluminescence techniques. For comparison, bare WO₃ and NaNbO₃ were also synthesized and characterized. 2,4-Dichlorophenoxyacetic acid (2,4-D) was degraded under visible light to evaluate its photocatalytic performance. The WO₃ (95 wt%)/NaNbO₃ composite showed higher photocatalytic activity than pure WO₃ and NaNbO₃ and even than the 15 and 85 wt% coupled materials; thus, the combination with the highest ratio of WO₃ with respect to NaNbO₃ showed increased photocatalytic activity compared with the bare materials.

在该研究中，以三种WO ₃质量比（15、85和95 wt％）合成WO ₃ / NaNbO ₃偶联光催化剂并进行了表征。这些复合材料通过X射线粉末衍射，N ₂物理吸附，UV-Vis漫反射光谱，扫描电子显微镜，X射线光电子光谱，拉曼光谱，透射电子显微镜和光致发光技术进行了表征。为了比较，还合成和表征了裸露的WO ₃和NaNbO ₃。2,4-二氯苯氧基乙酸（2,4-D）在可见光下降解，以评估其光催化性能。WO ₃（95 wt％）/ NaNbO ₃该复合材料比纯WO ₃和NaNbO ₃甚至比15和85 wt％的偶合材料显示更高的光催化活性。因此，与裸材料相比，WO ₃相对于NaNbO _3的比例最高的组合显示出增加的光催化活性。