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

Chúng tôi vui mừng thông báo rằng TS. Vũ Thị Ngọc Ánh và các đồng nghiệp gần đây đã xuất bản công trình của họ có tựa đề "Physicochemical characteristics of DyFeO3 perovskite nanoparticles synthesized by a simple co-precipitation method at room temperature" trên tạp chí Emergent Materials

Tóm tắt:

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.