Optical properties and radiation stability of TiO2 powders modified by Al2O3, ZrO2, SiO2, TiO2, ZnO, and MgO nanoparticles

M. M. Mikhailov, V. A. Vlasov, S. A. Yuryev, V. V. Neshchimenko, V. V. Shcherbina

Research output: Contribution to journalArticle

14 Citations (Scopus)

Abstract

Abstract The high-temperature modification of micron-sized grains of titanium dioxide with nanoparticles of Al2O3, ZrO2, SiO2, TiO2, ZnO, and MgO was performed. The influence of these types of nanoparticles on the diffuse reflectance spectra of modified pigments in the range of 350-2000 nm and their changes after irradiation by 30 keV electrons were investigated. It was determined that the modification does not lead to significant changes in the diffuse reflection spectra of the TiO2 pigments. The type of oxide nanoparticles, the size of the ionic radii and the valence of the cations do not noticeably influence the radiation stability of the modified pigment, as determined by the intensity of the absorption bands in the visible and near infrared regions of the spectrum. The determining factor in the increase of the radiation stability of the modified pigments is the specific surface area of the nanopowders.

Original languageEnglish
Article number4864
Pages (from-to)72-77
Number of pages6
JournalDyes and Pigments
Volume123
DOIs
Publication statusPublished - 11 Aug 2015

Fingerprint

Pigments
Powders
Optical properties
Nanoparticles
Radiation
Specific surface area
Titanium dioxide
Oxides
Cations
Absorption spectra
Positive ions
Irradiation
Infrared radiation
TiO2-SiO2
Electrons
Temperature

Keywords

  • Defects
  • Irradiation
  • Modification
  • Nanoparticles
  • Pigments
  • Specific surface area

ASJC Scopus subject areas

  • Chemical Engineering(all)
  • Process Chemistry and Technology

Cite this

Optical properties and radiation stability of TiO2 powders modified by Al2O3, ZrO2, SiO2, TiO2, ZnO, and MgO nanoparticles. / Mikhailov, M. M.; Vlasov, V. A.; Yuryev, S. A.; Neshchimenko, V. V.; Shcherbina, V. V.

In: Dyes and Pigments, Vol. 123, 4864, 11.08.2015, p. 72-77.

Research output: Contribution to journalArticle

Mikhailov, M. M. ; Vlasov, V. A. ; Yuryev, S. A. ; Neshchimenko, V. V. ; Shcherbina, V. V. / Optical properties and radiation stability of TiO2 powders modified by Al2O3, ZrO2, SiO2, TiO2, ZnO, and MgO nanoparticles. In: Dyes and Pigments. 2015 ; Vol. 123. pp. 72-77.
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abstract = "Abstract The high-temperature modification of micron-sized grains of titanium dioxide with nanoparticles of Al2O3, ZrO2, SiO2, TiO2, ZnO, and MgO was performed. The influence of these types of nanoparticles on the diffuse reflectance spectra of modified pigments in the range of 350-2000 nm and their changes after irradiation by 30 keV electrons were investigated. It was determined that the modification does not lead to significant changes in the diffuse reflection spectra of the TiO2 pigments. The type of oxide nanoparticles, the size of the ionic radii and the valence of the cations do not noticeably influence the radiation stability of the modified pigment, as determined by the intensity of the absorption bands in the visible and near infrared regions of the spectrum. The determining factor in the increase of the radiation stability of the modified pigments is the specific surface area of the nanopowders.",
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AU - Mikhailov, M. M.

AU - Vlasov, V. A.

AU - Yuryev, S. A.

AU - Neshchimenko, V. V.

AU - Shcherbina, V. V.

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N2 - Abstract The high-temperature modification of micron-sized grains of titanium dioxide with nanoparticles of Al2O3, ZrO2, SiO2, TiO2, ZnO, and MgO was performed. The influence of these types of nanoparticles on the diffuse reflectance spectra of modified pigments in the range of 350-2000 nm and their changes after irradiation by 30 keV electrons were investigated. It was determined that the modification does not lead to significant changes in the diffuse reflection spectra of the TiO2 pigments. The type of oxide nanoparticles, the size of the ionic radii and the valence of the cations do not noticeably influence the radiation stability of the modified pigment, as determined by the intensity of the absorption bands in the visible and near infrared regions of the spectrum. The determining factor in the increase of the radiation stability of the modified pigments is the specific surface area of the nanopowders.

AB - Abstract The high-temperature modification of micron-sized grains of titanium dioxide with nanoparticles of Al2O3, ZrO2, SiO2, TiO2, ZnO, and MgO was performed. The influence of these types of nanoparticles on the diffuse reflectance spectra of modified pigments in the range of 350-2000 nm and their changes after irradiation by 30 keV electrons were investigated. It was determined that the modification does not lead to significant changes in the diffuse reflection spectra of the TiO2 pigments. The type of oxide nanoparticles, the size of the ionic radii and the valence of the cations do not noticeably influence the radiation stability of the modified pigment, as determined by the intensity of the absorption bands in the visible and near infrared regions of the spectrum. The determining factor in the increase of the radiation stability of the modified pigments is the specific surface area of the nanopowders.

KW - Defects

KW - Irradiation

KW - Modification

KW - Nanoparticles

KW - Pigments

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