Open AccessМодификация наночастиц оксида церия при облучении ускоренными электронами
Author(s) -
И.Н. Бажукова,
А.В. Мышкина,
С.Ю. Соковнин,
В.Г. Ильвес,
А.Н. Киряков,
S. I. Bazhukov,
Р. А. Вазиров,
В. В. Касьянова,
И. А. Звонарева
Publication year - 2019
Publication title -
физика твердого тела
Language(s) - English
Resource type - Journals
eISSN - 1726-7498
pISSN - 0367-3294
DOI - 10.21883/ftt.2019.05.47604.16f
Subject(s) - materials science , photoluminescence , nanoparticle , luminescence , irradiation , electron beam processing , evaporation , chemical engineering , photochemistry , nanotechnology , optoelectronics , chemistry , physics , nuclear physics , engineering , thermodynamics
The luminescence and optical properties of ceria (CeO_2) nanoparticles irradiated by accelerated electrons with an energy of 10 MeV are investigated in this work. CeO_2 nanoparticles are prepared by the pulse electron evaporation of a ceramic target with vapor condensation of the evaporated material in a low-pressure gas on a NANOBIM-2 installation. The irradiation of CeO_2 nanopowders is found to cause the degradation of their luminescence and optical characteristics. The irradiation of a final aqueous suspension leads to the shift of a photoluminescence band toward the long wave range spectral range in comparison with the irradiation of a nanopowder. The catalytic-like behavior of CeO_2 nanoparticles interacting with hydrogen peroxide is analyzed, as well. Nanoparticles modified by the electron beam exhibit the deterioration of their enzyme-like activity.
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