Journal of Nuclear Materials, volume 532, pages 152073

Cenosphere-sourced hydrothermal synthesis of pollucite-analcime solid solutions as a low-temperature method to immobilize 137Cs in a mineral-like form

Publication typeJournal Article
Publication date2020-04-01
Quartile SCImago
Q1
Quartile WOS
Q1
Impact factor3.1
ISSN00223115
General Materials Science
Nuclear and High Energy Physics
Nuclear Energy and Engineering
Abstract
Two narrow fractions of coal fly ash cenospheres with ∼90 wt % glass phase and different Si/Al ratio (2.1 and 2.9 in the glass phase), shell porosity and thickness, globule size, and content of a mullite phase were used as a glassy source of Si and Al in the hydrothermal synthesis of pollucite-analcime solid solutions at 150 °C and autogenous pressure, 1.0 M NaOH, Cs/Na ratios of 0–0.25. Hollow microsphere globules of about 60–70 and 140–170 μm in sizes are produced as Cs immobilized forms in this process. The microspheres have a composite mullite/ANA wall, where ANA is analcime-pollucite solid solutions. Composition and morphology of solid products as well as composition of ANA phases were characterized by PXRD, SEM-EDS and STA methods. The influence of the mullite content and shell thickness on the preservation of the product spherical shape has been established. The degree of Cs+ recovery from alkaline solutions due to preferential involvement of cesium in the synthesis of ANA phases was up to 96%.

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Vereshchagina T. et al. Cenosphere-sourced hydrothermal synthesis of pollucite-analcime solid solutions as a low-temperature method to immobilize 137Cs in a mineral-like form // Journal of Nuclear Materials. 2020. Vol. 532. p. 152073.
GOST all authors (up to 50) Copy
Vereshchagina T., Kutikhina E. A., Chernykh Y. Yu., Solovyov L. A., Zhizhaev A. M., Vereshchagin S., Fomenko E. V. Cenosphere-sourced hydrothermal synthesis of pollucite-analcime solid solutions as a low-temperature method to immobilize 137Cs in a mineral-like form // Journal of Nuclear Materials. 2020. Vol. 532. p. 152073.
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RIS Copy
TY - JOUR
DO - 10.1016/j.jnucmat.2020.152073
UR - https://doi.org/10.1016%2Fj.jnucmat.2020.152073
TI - Cenosphere-sourced hydrothermal synthesis of pollucite-analcime solid solutions as a low-temperature method to immobilize 137Cs in a mineral-like form
T2 - Journal of Nuclear Materials
AU - Vereshchagina, T.A.
AU - Kutikhina, Ekaterina A
AU - Chernykh, Yana Yu
AU - Solovyov, Leonid A.
AU - Zhizhaev, Anatoly M.
AU - Vereshchagin, S.N.
AU - Fomenko, Elena V
PY - 2020
DA - 2020/04/01 00:00:00
PB - Elsevier
SP - 152073
VL - 532
SN - 0022-3115
ER -
BibTex
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BibTex Copy
@article{2020_Vereshchagina,
author = {T.A. Vereshchagina and Ekaterina A Kutikhina and Yana Yu Chernykh and Leonid A. Solovyov and Anatoly M. Zhizhaev and S.N. Vereshchagin and Elena V Fomenko},
title = {Cenosphere-sourced hydrothermal synthesis of pollucite-analcime solid solutions as a low-temperature method to immobilize 137Cs in a mineral-like form},
journal = {Journal of Nuclear Materials},
year = {2020},
volume = {532},
publisher = {Elsevier},
month = {apr},
url = {https://doi.org/10.1016%2Fj.jnucmat.2020.152073},
pages = {152073},
doi = {10.1016/j.jnucmat.2020.152073}
}
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