ZrMo2O7(OH)2(H2O)2 coated microsphere glass supports derived from coal fly ash cenospheres as a novel sorbent for radionuclide trapping

Тип публикации: статья из журнала

Год издания: 2019

Идентификатор DOI: 10.1016/j.jece.2019.102887

Ключевые слова: Actinides, Coal ash, Coatings, Fly ash, Glass, Microspheres, Radioactivity, Sorbents, Strontium compounds, Cenospheres, Coal fly ash cenosphere, Distribution coefficient, Hollow core shells, Hydrothermal procedure, Radioactive wastewater, Sorption properties, Zirconium molybdate, Sorption, Cenospheres, Coating, Radioactive wastewater, Sorbent, Zirconium molybdate

Аннотация: The nanostructured polycrystalline ZrMo2O7(OH)2(H2O)2 coating was synthesized on coal fly ash cenosphere derived microsphere glass supports via a two-step mild hydrothermal procedure resulting in a microsphere composite of a hollow core-shell structure. Sorption properties of the microsphere composite with respect to Cs+, Sr2+ and Nd3+ as non-radioactive imitators of 137Cs, 90Sr and actinides (III) were estimated. The nanostructured design of the coating was shown to enhance the Nd3+, Sr2+,Cs+ sorption in comparison with pure microsized ZrMo2O7(OH)2(H2O)2. Nd3+, Sr2+, Cs+ sorption distribution coefficients were determined (0.52104, 0.40103 and 0.92102 mL/g, respectively) and preferential Nd3+ sorption was explained on the basis of ZrMo2O7(OH)2(H2O)2 structure. © 2019 Elsevier Ltd. All rights reserved.

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Издание

Журнал: Journal of Environmental Chemical Engineering

Выпуск журнала: Vol. 7, Is. 1

ISSN журнала: 22133437

Издатель: Elsevier Ltd

Авторы

  • Vereshchagina Tatiana A. (RAS, SB, Krasnoyarsk Sci Ctr, Inst Chem & Chem Technol,Fed Res Ctr, 50-24 Akad Gorodok, Krasnoyarsk 660036, Russia)
  • Kutikhina Ekaterina A. (RAS, SB, Krasnoyarsk Sci Ctr, Inst Chem & Chem Technol,Fed Res Ctr, 50-24 Akad Gorodok, Krasnoyarsk 660036, Russia)
  • Fomenko Elena V. (RAS, SB, Krasnoyarsk Sci Ctr, Inst Chem & Chem Technol,Fed Res Ctr, 50-24 Akad Gorodok, Krasnoyarsk 660036, Russia)
  • Solovyov Leonid A. (RAS, SB, Krasnoyarsk Sci Ctr, Inst Chem & Chem Technol,Fed Res Ctr, 50-24 Akad Gorodok, Krasnoyarsk 660036, Russia)
  • Vereshchagin Sergei N. (RAS, SB, Krasnoyarsk Sci Ctr, Inst Chem & Chem Technol,Fed Res Ctr, 50-24 Akad Gorodok, Krasnoyarsk 660036, Russia)
  • Anshits Alexander G. (RAS, SB, Krasnoyarsk Sci Ctr, Inst Chem & Chem Technol,Fed Res Ctr, 50-24 Akad Gorodok, Krasnoyarsk 660036, Russia; Siberian Fed Univ, Dept Chem, Svobodny Pr 79, Krasnoyarsk 660041, RussiaArticle)

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