Physicochemical characteristics of DyFeO₃ perovskite nanoparticles synthesized by a simple co-precipitation method at room temperature

DyFeO₃ nanoparticles were successfully prepared by a simple co-precipitation method at room temperature using 0.2% ammonia solution as the precipitating agent. The characteristics of DyFeO₃ nanoparticles were studied by PXRD, FTIR, EDX-mapping, TEM, DRS, and VSM methods. The results revealed a homogeneous distribution of the main elements on the samples' surfaces, with morphology consisting of isometric and highly agglomerated nanoparticles. TEM analysis indicated a particle size range of 70–100 nm for DyFeO₃ materials. After calcination at 750, 850, and 950 °C for 1 h, the obtained DyFeO₃ nanoparticles exhibited coercivities (H_c) of 250.03–497.02 Oe, remanent magnetizations (M_r) of 0.2–0.79 emu·g⁻¹, net magnetizations (M_n) of 2.96–3.88 emu·g⁻¹, and optical energy gap (E_g) of 1.75–1.85 eV. The synthesized DyFeO₃ nanomaterials has strong optical absorption in both ultraviolet and visible regions, suggesting their potential as catalysts for the decomposition of toxic organic compounds under solar irradiation.