TY - JOUR

T1 - Mesoporous molybdate-substituted hydroxyapatite nanopowders obtained via a hydrothermal route

AU - Goldberg, Margarita A.

AU - Donskaya, Nadezhda O.

AU - Valeev, Dmitry

AU - Fomin, Alexander S.

AU - Murzakhanov, Fadis F.

AU - Leonov, Alexander

AU - Konovalov, Anatoliy A.

AU - Antonova, Olga S.

AU - Shoppert, Andrei

AU - Kudryavtsev, Egor A.

AU - Gafurov, Marat R.

AU - Barinov, Sergey M.

AU - Komlev, Vladimir S.

N1 - This research was funded by the Russian Science Foundation, grant number 22-79-10293. Margarita A. Goldberg reports financial support was provided by A.A. Baikov Institute of Metallurgy and Materials Science, Russian Academy of Sciences. If there are other authors, they declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.

PY - 2024/5/1

Y1 - 2024/5/1

N2 - In the last decade, mesoporous hydroxyapatite (HA) materials have received much attention regarding environmental applications (including adsorption of soil and water contaminants, films for lithium batteries, catalysts, and support systems for catalysis) and open up ample opportunities regarding biomedical devices and structures. Molybdenum ions may strongly influence catalytic and sorption properties of materials. The present study shows an influence of hydrothermal-synthesis conditions (including temperature and duration of the treatment) on phase composition, textural properties, and morphology of molybdate-containing HA. Powders with high crystallinity manifested Brunauer–Emmett–Teller specific surface area up to 55 m2/g with a pore volume of 0.33 cm3/g. The molybdate-containing HA powders were investigated by chemical analysis, X-ray diffraction, Fourier-transform IR spectroscopy, and transmission electron microscopy. Their specific surface area, pore volume, and pore size distributions were determined by low-temperature nitrogen adsorption measurements, zeta potential was quantified, and electron paramagnetic resonance spectroscopy was performed. The concentration of MoO42− preserving the one-phase state was found, and the impact of hydrothermal treatment mode was analyzed by machine learning using artificial neural networks.

AB - In the last decade, mesoporous hydroxyapatite (HA) materials have received much attention regarding environmental applications (including adsorption of soil and water contaminants, films for lithium batteries, catalysts, and support systems for catalysis) and open up ample opportunities regarding biomedical devices and structures. Molybdenum ions may strongly influence catalytic and sorption properties of materials. The present study shows an influence of hydrothermal-synthesis conditions (including temperature and duration of the treatment) on phase composition, textural properties, and morphology of molybdate-containing HA. Powders with high crystallinity manifested Brunauer–Emmett–Teller specific surface area up to 55 m2/g with a pore volume of 0.33 cm3/g. The molybdate-containing HA powders were investigated by chemical analysis, X-ray diffraction, Fourier-transform IR spectroscopy, and transmission electron microscopy. Their specific surface area, pore volume, and pore size distributions were determined by low-temperature nitrogen adsorption measurements, zeta potential was quantified, and electron paramagnetic resonance spectroscopy was performed. The concentration of MoO42− preserving the one-phase state was found, and the impact of hydrothermal treatment mode was analyzed by machine learning using artificial neural networks.

UR - http://www.scopus.com/inward/record.url?partnerID=8YFLogxK&scp=85188005726

U2 - 10.1016/j.ceramint.2024.02.229

DO - 10.1016/j.ceramint.2024.02.229

M3 - Article

VL - 50

SP - 17404

EP - 17418

JO - Ceramics International

JF - Ceramics International

SN - 0272-8842

IS - 10

ER -