In the present investigation, layered graphitic carbon nitride (g-C₃N₄) was hybridized with Ag₃PO₄ via in situ precipitation route to design heterojunction structure. The crystal structure, textural, morphology, thermal stability and optical proprieties of the as-prepared materials was systematically characterized using X-ray diffraction (XRD), Fourier-transform infrared spectroscopy (FTIR), nitrogen adsorption-desorption, scanning electron microscopy (SEM), Transmission electron microscopy (TEM), thermogravimetric analysis (TGA) and UV–vis diffuse reflectance spectroscopy (DRS). The g-C₃N₄/Ag₃PO₄ composite was immobilized on FTO substrate to develop a photoanode catalyst, which was used in a typical photoelectrocatalytic process for Rhodamine B degradation. The results indicate that the g-C₃N₄/Ag₃PO₄ composite exhibit a higher photoelectrocatalytic activity for rhodamine B degradation due to the charge transfer/separation properties and prolonged lifetime of charge carriers as it was confirmed by photocurrent and electrochemical impedance spectroscopy results.

在本研究中，层状石墨碳氮化物（gC ₃ N ₄）通过原位沉淀途径与Ag ₃ PO ₄ 杂化，以设计异质结结构。使用X射线衍射（XRD），傅立叶变换红外光谱（FTIR），氮吸附-解吸，扫描电子显微镜（SEM）对制得材料的晶体结构，结构，形貌，热稳定性和光学特性进行了系统表征），透射电子显微镜（TEM），热重分析（TGA）和紫外可见漫反射光谱（DRS）。gC ₃ N ₄ / Ag ₃ PO ₄将该复合物固定在FTO基材上以开发光阳极催化剂，该催化剂用于典型的光电催化罗丹明B降解过程中。结果表明，gC ₃ N ₄ / Ag ₃ PO ₄复合材料由于电荷转移/分离性质和电荷载流子寿命的延长，对罗丹明B的降解表现出更高的光电催化活性，这已被光电流和电化学阻抗谱结果所证实。