Prospects of titanium dioxide nanotube usage for the high-performance uranium ion sorption

M. P. Chubik, N. A. Osipova, A. V. Gonets, Marianna Valerianovna Chubik

Результат исследований: Материалы для журналаСтатья

Выдержка

There are shown the results of the nano-sized material sorption characteristics research. Nanotubes with layer structure were used for radioactive uranyl-ions UO2 2+ sorption from water medium. Nanotubes TiO2 were obtained by low-temperature fritting of electroblasting nanopowders. Uranyl-ions were sorbed from uranyl nitrate model solutions of required concentrations and a model solution prepared by reaction of natural mineral autenit with twice-distilled water and HNO3 addition. Research of the UO2 2+ sorption were carried out under static and dynamic conditions at the room temperature. The impact of on the UO2 2+ sorption extent has been studied. Titanium dioxide nanotubes sorption characteristics dependence on mass of sorbent test charge and phases contact time. Analysis of mechanism of UO2 2+ absorption and fixation by nanotubes TiO2 has been accomplished. As a result of immobilization, UO2 2+ are sorbed in nanotube which doesn't require reduction after the sorption. Layer structure of nanotubes becomes significally deformed during sorption. They became fragmented (initial length of nanotubes is 300-600 nm, but after the sorption it comes to 100-130 nm) and unrolled, which increase possibility of radioactive ions capture in the plates of nanotubes. It is shown that titanium dioxide nanotubes with sorption capacity from 36.8 to 92.3% can be used as a very promising material for radioactive water decontamination.

Язык оригиналаАнглийский
Страницы (с-по)55-60
Число страниц6
ЖурналTsvetnye Metally
Том2016
Номер выпуска1
DOI
СостояниеОпубликовано - 1 янв 2016

Отпечаток

Uranium
titanium oxides
Titanium dioxide
sorption
Nanotubes
uranium
Sorption
nanotubes
Ions
ions
Water
Uranyl Nitrate
water
titanium dioxide
decontamination
Decontamination
sorbents
Sorbents
immobilization
Minerals

ASJC Scopus subject areas

  • Materials Chemistry
  • Metals and Alloys
  • Condensed Matter Physics
  • Physical and Theoretical Chemistry
  • Ceramics and Composites
  • Surfaces, Coatings and Films

Цитировать

Prospects of titanium dioxide nanotube usage for the high-performance uranium ion sorption. / Chubik, M. P.; Osipova, N. A.; Gonets, A. V.; Chubik, Marianna Valerianovna.

В: Tsvetnye Metally, Том 2016, № 1, 01.01.2016, стр. 55-60.

Результат исследований: Материалы для журналаСтатья

Chubik, M. P. ; Osipova, N. A. ; Gonets, A. V. ; Chubik, Marianna Valerianovna. / Prospects of titanium dioxide nanotube usage for the high-performance uranium ion sorption. В: Tsvetnye Metally. 2016 ; Том 2016, № 1. стр. 55-60.
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AB - There are shown the results of the nano-sized material sorption characteristics research. Nanotubes with layer structure were used for radioactive uranyl-ions UO2 2+ sorption from water medium. Nanotubes TiO2 were obtained by low-temperature fritting of electroblasting nanopowders. Uranyl-ions were sorbed from uranyl nitrate model solutions of required concentrations and a model solution prepared by reaction of natural mineral autenit with twice-distilled water and HNO3 addition. Research of the UO2 2+ sorption were carried out under static and dynamic conditions at the room temperature. The impact of on the UO2 2+ sorption extent has been studied. Titanium dioxide nanotubes sorption characteristics dependence on mass of sorbent test charge and phases contact time. Analysis of mechanism of UO2 2+ absorption and fixation by nanotubes TiO2 has been accomplished. As a result of immobilization, UO2 2+ are sorbed in nanotube which doesn't require reduction after the sorption. Layer structure of nanotubes becomes significally deformed during sorption. They became fragmented (initial length of nanotubes is 300-600 nm, but after the sorption it comes to 100-130 nm) and unrolled, which increase possibility of radioactive ions capture in the plates of nanotubes. It is shown that titanium dioxide nanotubes with sorption capacity from 36.8 to 92.3% can be used as a very promising material for radioactive water decontamination.

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KW - Nanosorbent

KW - Purification

KW - Radioactive ions

KW - Radioactive water contamination

KW - Sorption

KW - Titanium dioxide nanotubes

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