13

Nanosystems: Phys. Chem. Math., 2022, 13 (1), 87–95

Photocatalytic properties of composites based on Y1-xBixFeO3 (0≤x≤0.15) nanocrystalline solid solutions with a hexagonal structure

Anastasiya N. Sokolova – St. Petersburg State Institute of Technology, 190013 St. Petersburg; Ioffe Institute, 194021 St. Petersburg, Russia; sok5552@mail.ru
Olga V. Proskurina – St. Petersburg State Institute of Technology, 190013 St. Petersburg; Ioffe Institute, 194021 St. Petersburg, Russia; proskurinaov@mail.ru
Dmitry P. Danilovich – St. Petersburg State Institute of Technology, 190013 St. Petersburg, Russia; dmitrydanilovich@gmail.com
Victor V. Gusarov – Ioffe Institute, 194021 St. Petersburg, Russia; victor.v.gusarov@gmail.com

Corresponding author: Anastasiya N. Sokolova, sok5552@mail.ru

DOI 10.17586/2220-8054-2022-13-1-87-95

ABSTRACT Nanopowders of Y1-xBixFeO3 (x = 0, 0.05, 0.10, 0.15) solid solutions were obtained by coprecipitation of hydroxides with simultaneous sonication and subsequent thermal treatment of the precipitate in air at 800 °C for 1 min. in the annealing-quenching mode. The results of X-ray phase analysis showed the formation of nanocrystalline solid solutions with a structure of hexagonal yttrium orthoferrite. The average crystallite size increases from 4 to 10 nm with the increasing bismuth content in the solid solution. The influence of Y3+ substitution for Bi3+ in yttrium orthoferrite on the photocatalytic activity of Y1-xBixFeO3 nanopowders during the Fenton-like degradation of methyl violet under the visible light irradiation has been studied. The maximum reaction rate constant of 0.0197 min-1 was shown by the YFeO3 nanopowder, which has the smallest crystallite size of ~4 nm.

KEYWORDS coprecipitation, yttrium orthoferrite, heat treatment, nanoparticles, photocatalyst, Fenton-like reactions

ACKNOWLEDGEMENTS X-ray diffraction studies and elemental analyses of samples were performed employing the equipment of the Engineering Center of the St. Petersburg State Institute of Technology (Technical University). The research was supported by the Russian Science Foundation Grant 20-63-47016.

FOR CITATION Sokolova A.N., Proskurina O.V., Danilovich D.P., Gusarov V.V. Photocatalytic properties of composites based on Y1-xBixFeO3 (0≤x≤0.15) nanocrystalline solid solutions with a hexagonal structure. Nanosystems: Phys. Chem. Math., 2022, 13 (1), 87–95.

Download

Comments are closed.