Co-Doped NdFeO3 Nanoparticles: Synthesis, Optical, and Magnetic Properties Study

Tien Anh Nguyen; Thanh Le Pham; Irina Yakovlevna Mittova; Valentina Olegovna Mittova; Truc Linh Thi Nguyen; Hung Van Nguyen; Vuong Xuan Bui

doi:10.3390/nano11040937

Co-Doped NdFeO₃ Nanoparticles: Synthesis, Optical, and Magnetic Properties Study

Nanomaterials (Basel). 2021 Apr 6;11(4):937. doi: 10.3390/nano11040937.

Authors

Tien Anh Nguyen^{1

2}, Thanh Le Pham³, Irina Yakovlevna Mittova⁴, Valentina Olegovna Mittova⁵, Truc Linh Thi Nguyen³, Hung Van Nguyen⁶, Vuong Xuan Bui⁷

Affiliations

¹ Informetrics Research Group, Ton Duc Thang University, Ho Chi Minh City 700000, Vietnam.
² Faculty of Applied Sciences, Ton Duc Thang University, Ho Chi Minh City 700000, Vietnam.
³ Faculty of Chemistry, Ho Chi Minh City University of Education, Ho Chi Minh City 700000, Vietnam.
⁴ Faculty of Chemistry, Voronezh State University, Voronezh 394018, Russia.
⁵ Department of Biochemistry, Voronezh State Medical University named after N. N. Burdenko, Voronezh 394036, Russia.
⁶ Practice and Experimental Center for Dong Thap University, Cao Lanh City 81000, Vietnam.
⁷ Faculty of Pedagogy in Natural Sciences, Sai Gon University, Ho Chi Minh City 700000, Vietnam.

Abstract

In this work, single-phase nanostructured NdFe_1-xCo_xO₃ (x = 0, 0.1, 0.2, and 0.3) perovskite materials were obtained by annealing stoichiochemistry mixtures of their component hydroxides at 750 °C for 60 min. The partial substitution of Fe by Co in the NdFeO₃ crystal lattice leads to significant changes in the structural characteristics, and as a consequence, also alters both the magnetic and optical properties of the resulting perovskites. The low optical band gap (E_g = 2.06 ÷ 1.46 eV) and high coercivity (H_c = 136.76 ÷ 416.06 Oe) give Co-doped NdFeO₃ nanoparticles a huge advantage for application in both photocatalysis and hard magnetic devices.

Keywords: co-doped NdFeO3; co-precipitation method; magnetic properties; nanocrystals; optical properties.