Facile synthesis of calcium magnesium zirconium phosphate adsorbents transformed into MZr4P6O24 (M: Ca, Mg) ceramic matrix for radionuclides immobilization

Andrei Ivanets; Irina Shashkova; Natalja Kitikova; Artsiom Radkevich; Ekaterina Venhlinskaya; Anastasiya Dzikaya; Alex V. Trukhanov; Mika Sillanpää

doi:10.1016/j.seppur.2021.118912

Facile synthesis of calcium magnesium zirconium phosphate adsorbents transformed into MZr₄P₆O₂₄ (M: Ca, Mg) ceramic matrix for radionuclides immobilization

Andrei Ivanets, Irina Shashkova, Natalja Kitikova, Artsiom Radkevich, Ekaterina Venhlinskaya, Anastasiya Dzikaya, Alex V. Trukhanov, Mika Sillanpää

Chemical Engineering Technology

Research output: Contribution to journal › Article › peer-review

18 Citations (Scopus)

Abstract

Calcium zirconium CaZr₄P₆O₂₄ and magnesium zirconium MgZr₄P₆O₂₄ phosphates with NZP structure are promising materials for the safe disposal of high radioactive wastes. Herein, firstly the facile synthesis of calcium magnesium zirconium phosphate adsorbents transformed into MZr₄P₆O₂₄ (M: Ca, Mg) ceramic matrix as effective materials for radionuclides adsorption and immobilization was developed. The detailed analysis of phase composition, functional groups, elements content, surface morphology, texture and adsorption characteristics of prepared calcium magnesium zirconium phosphates were performed. It was shown that obtained samples were amorphous materials. The high efficacy (K _d > 10⁴cm³/g) of prepared adsorbents towards ¹³⁷Cs, ⁸⁵Sr, ⁶⁰Co radionuclides in the wide pH range of 4.0–10.0 was demonstrated. The formation of calcium zirconium CaZr₄P₆O₂₄ and magnesium zirconium MgZr₄P₆O₂₄phosphates with zirconia ZrO₂admixture during adsorbents calcination at 1000 °C was shown. The obtained results have high capabilities for the development of effective calcium magnesium zirconium phosphate adsorbents for radionuclides immobilization into MZr₄P₆O₂₄(M: Ca, Mg) ceramic matrix.

Original language	English
Article number	118912
Journal	Separation and Purification Technology
Volume	272
DOIs	https://doi.org/10.1016/j.seppur.2021.118912
Publication status	Published - 1 Oct 2021

Keywords

Adsorbents
CaZrPO and MgZrPO ceramic matrix
Calcium magnesium zirconium phosphates
Liquid radioactive wastes
Radionuclides immobilization

ASJC Scopus subject areas

Analytical Chemistry
Filtration and Separation

Access to Document

10.1016/j.seppur.2021.118912

Cite this

Ivanets, A., Shashkova, I., Kitikova, N., Radkevich, A., Venhlinskaya, E., Dzikaya, A., Trukhanov, A. V., & Sillanpää, M. (2021). Facile synthesis of calcium magnesium zirconium phosphate adsorbents transformed into MZr₄P₆O₂₄ (M: Ca, Mg) ceramic matrix for radionuclides immobilization. Separation and Purification Technology, 272, Article 118912. https://doi.org/10.1016/j.seppur.2021.118912

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title = "Facile synthesis of calcium magnesium zirconium phosphate adsorbents transformed into MZr4P6O24 (M: Ca, Mg) ceramic matrix for radionuclides immobilization",

abstract = "Calcium zirconium CaZr4P6O24 and magnesium zirconium MgZr4P6O24 phosphates with NZP structure are promising materials for the safe disposal of high radioactive wastes. Herein, firstly the facile synthesis of calcium magnesium zirconium phosphate adsorbents transformed into MZr4P6O24 (M: Ca, Mg) ceramic matrix as effective materials for radionuclides adsorption and immobilization was developed. The detailed analysis of phase composition, functional groups, elements content, surface morphology, texture and adsorption characteristics of prepared calcium magnesium zirconium phosphates were performed. It was shown that obtained samples were amorphous materials. The high efficacy (K d > 104cm3/g) of prepared adsorbents towards 137Cs, 85Sr, 60Co radionuclides in the wide pH range of 4.0–10.0 was demonstrated. The formation of calcium zirconium CaZr4P6O24 and magnesium zirconium MgZr4P6O24phosphates with zirconia ZrO2admixture during adsorbents calcination at 1000 °C was shown. The obtained results have high capabilities for the development of effective calcium magnesium zirconium phosphate adsorbents for radionuclides immobilization into MZr4P6O24(M: Ca, Mg) ceramic matrix.",

keywords = "Adsorbents, CaZrPO and MgZrPO ceramic matrix, Calcium magnesium zirconium phosphates, Liquid radioactive wastes, Radionuclides immobilization",

author = "Andrei Ivanets and Irina Shashkova and Natalja Kitikova and Artsiom Radkevich and Ekaterina Venhlinskaya and Anastasiya Dzikaya and Trukhanov, {Alex V.} and Mika Sillanp{\"a}{\"a}",

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Ivanets, A, Shashkova, I, Kitikova, N, Radkevich, A, Venhlinskaya, E, Dzikaya, A, Trukhanov, AV & Sillanpää, M 2021, 'Facile synthesis of calcium magnesium zirconium phosphate adsorbents transformed into MZr₄P₆O₂₄ (M: Ca, Mg) ceramic matrix for radionuclides immobilization', Separation and Purification Technology, vol. 272, 118912. https://doi.org/10.1016/j.seppur.2021.118912

TY - JOUR

T1 - Facile synthesis of calcium magnesium zirconium phosphate adsorbents transformed into MZr4P6O24 (M: Ca, Mg) ceramic matrix for radionuclides immobilization

AU - Ivanets, Andrei

AU - Shashkova, Irina

AU - Kitikova, Natalja

AU - Radkevich, Artsiom

AU - Venhlinskaya, Ekaterina

AU - Dzikaya, Anastasiya

AU - Trukhanov, Alex V.

AU - Sillanpää, Mika

PY - 2021/10/1

Y1 - 2021/10/1

N2 - Calcium zirconium CaZr4P6O24 and magnesium zirconium MgZr4P6O24 phosphates with NZP structure are promising materials for the safe disposal of high radioactive wastes. Herein, firstly the facile synthesis of calcium magnesium zirconium phosphate adsorbents transformed into MZr4P6O24 (M: Ca, Mg) ceramic matrix as effective materials for radionuclides adsorption and immobilization was developed. The detailed analysis of phase composition, functional groups, elements content, surface morphology, texture and adsorption characteristics of prepared calcium magnesium zirconium phosphates were performed. It was shown that obtained samples were amorphous materials. The high efficacy (K d > 104cm3/g) of prepared adsorbents towards 137Cs, 85Sr, 60Co radionuclides in the wide pH range of 4.0–10.0 was demonstrated. The formation of calcium zirconium CaZr4P6O24 and magnesium zirconium MgZr4P6O24phosphates with zirconia ZrO2admixture during adsorbents calcination at 1000 °C was shown. The obtained results have high capabilities for the development of effective calcium magnesium zirconium phosphate adsorbents for radionuclides immobilization into MZr4P6O24(M: Ca, Mg) ceramic matrix.

AB - Calcium zirconium CaZr4P6O24 and magnesium zirconium MgZr4P6O24 phosphates with NZP structure are promising materials for the safe disposal of high radioactive wastes. Herein, firstly the facile synthesis of calcium magnesium zirconium phosphate adsorbents transformed into MZr4P6O24 (M: Ca, Mg) ceramic matrix as effective materials for radionuclides adsorption and immobilization was developed. The detailed analysis of phase composition, functional groups, elements content, surface morphology, texture and adsorption characteristics of prepared calcium magnesium zirconium phosphates were performed. It was shown that obtained samples were amorphous materials. The high efficacy (K d > 104cm3/g) of prepared adsorbents towards 137Cs, 85Sr, 60Co radionuclides in the wide pH range of 4.0–10.0 was demonstrated. The formation of calcium zirconium CaZr4P6O24 and magnesium zirconium MgZr4P6O24phosphates with zirconia ZrO2admixture during adsorbents calcination at 1000 °C was shown. The obtained results have high capabilities for the development of effective calcium magnesium zirconium phosphate adsorbents for radionuclides immobilization into MZr4P6O24(M: Ca, Mg) ceramic matrix.

KW - Adsorbents

KW - CaZrPO and MgZrPO ceramic matrix

KW - Calcium magnesium zirconium phosphates

KW - Liquid radioactive wastes

KW - Radionuclides immobilization

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DO - 10.1016/j.seppur.2021.118912

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