Abstract
The results of the study of the interaction of an aqueous solution of strontium nitrate with potas-sium-titanate nanoparticles of different morphology obtained by the hydrothermal method are reported. Comparative analysis showed the advantage of nanotubes as sorbents over nanolayers and nanowires. As can be seen from the experiment conducted with nanotubes containing aluminum, an amount of strontium sorbed from the solution rises with increasing temperature: at 50°C the absorption by the tubular matrix was ≈ 0.76 × 10−3 mol g−1, and at 80°C that was ≈ 2.02 × 10−3 mol g−1. Nanotube samples doped with magnesium had the best sorption characteristics: After 5 h of keeping in a solution at 80°С, the content of strontium in them was ≈3.65 × 10−3 mol g−1. The results show the promise of using potassium titanate nanoparticles to extract strontium from aqueous solutions.
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Acknowledgments
The authors thank E. Yu. Brazovskaya and A.M. Ni-kolaev for their help in studying the textural characteristics of the samples (Institute of Silicate Chemistry, Russian Academy of Sciences), as well as D. A. Kirilenko for the TEM data obtained using the equipment of the Federal Center of Collective Ise “Materials science and diagnostics in advanced technologies,” supported by the Ministry of Education and Science of Russia (project no. RFMEFI62117X0018) (Ioffe Institute, Russian Academy of Sciences).
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Russian Text © The Author(s), 2019, published in Zhurnal Prikladnoi Khimii, 2019, Vol. 92, No. 4, pp. 510−515.
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Sinelshchikova, O.Y., Maslennikova, T.P., Besprozvannykh, N.V. et al. Sorption of Strontium Ions on Potassium-Titanate Nanoparticles of Various Morphology Obtained under Hydrothermal Conditions. Russ J Appl Chem 92, 549–554 (2019). https://doi.org/10.1134/S1070427219040116
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DOI: https://doi.org/10.1134/S1070427219040116