Mixed perovskites PrCo_1−xFe_xO₃ have been synthesized by the solgel citrate route with the following calcinations in air at 600–800 °C. The prepared samples have been studied using DTA–TG, XRD, FTIR and UV–Vis spectroscopy, and nitrogen low-temperature adsorption–desorption. Electronic structure and magnetic properties of the mixed praseodymium cobaltites–ferrites were calculated within the projector augmented wave method, implemented in the ABINIT software package. The prepared perovskites have been tested as photocatalysts of dyes degradation under visible illumination. It has been established that only the crystalline perovskite phase is photocatalytically active. The prepared materials are semiconductors with band gap within 1.7–2.6 eV and intense absorption of visible light. This fact as well as sufficiently high specific surface area and developed meso–macroporous structure ensures their increased photocatalytic activity. The most active in the PrCo_1−xFe_xO₃ series is the sample with Co/Fe = 1:9 due to the highest specific surface area, low value of the band gap, and higher deformation of orthorhombic perovskite structure.

混合钙钛矿PrCo _{1− x} Fe _x O ₃通过柠檬酸溶胶凝胶途径合成，并在600–800°C的空气中进行以下煅烧。使用DTA-TG，XRD，FTIR和UV-Vis光谱以及氮气低温吸附-脱附对制备的样品进行了研究。在ABINIT软件包中实现的投影仪增强波法中计算了混合铁酸盐-铁氧体的电子结构和磁性。所制备的钙钛矿已作为可见光下染料降解的光催化剂进行了测试。已经确定只有结晶的钙钛矿相具有光催化活性。准备的材料是带隙在1.7-2.6 eV之间的半导体，并且强烈吸收可见光。这一事实以及足够高的比表面积和发达的中微结构确保了它们增加的光催化活性。PrCo中最活跃的_{1- x} Fe _x O ₃系列是Co / Fe = 1：9的样品，这是因为其最高的比表面积，低的带隙值以及斜方钙钛矿结构的较高变形。