TY - JOUR

T1 - Substitution in the Structure of Hydroxyapatite Doped with Iron Cations Upon Mechanochemical Synthesis

AU - Isaev, D. D.

AU - Kriventsov, V. V.

AU - Petrov, S. A.

AU - Bystrov, V. S.

AU - Bulina, N. V.

N1 - This work was supported by the Russian Science Foundation (project no. 21-12-00251). The XANES studies were carried out under the program “Priority-2030” within the framework of the implementation of youth research projects "X-ray, synchrotron, neutron methods of interdisciplinary research” and were carried out using equipment of the Center for Collective Use of the Siberian Center of Synchrotron and Terahertz Radiation based on the unique scientific VEPP-4 – VEPP-2000 complex at the Budker Institute of Nuclear Physics, Siberian Branch, Russian Academy of Sciences. Публикация для корректировки.

PY - 2023/6

Y1 - 2023/6

N2 - Hydroxyapatite, a mineral of the apatite group, has an important and useful property. It has the propensity for various kinds of substitutions, which allows modification of its properties and expansion of the possibilities of applying the synthetic material. The properties of a synthesized substance depend on the way it is produced, as the synthesis conditions influence the structural and morphological characteristics of the particles being formed. This work shows that, in the case of mechanochemical synthesis with the introduction of iron cations as a dopant, the structure of hydroxyapatite, in which the dopant occupies the position of the calcium cation, is formed. This type of substitution is accompanied by a decrease in the lattice parameters of the hydroxyapatite. It is shown that iron cations predominantly possess a 3+ charge, which is independent of the charge of the initial reagent containing the iron cation. It is also found that in the process of mechanochemical synthesis under certain conditions, the simultaneous partial replacement of calcium cations with iron cations and phosphate groups with carbonate group can be implemented. The powders obtained by mechanochemical synthesis are characterized by powder diffraction, infrared spectroscopy, X-ray absorption near edge structure spectroscopy (XANES), and Mössbauer spectroscopy.

AB - Hydroxyapatite, a mineral of the apatite group, has an important and useful property. It has the propensity for various kinds of substitutions, which allows modification of its properties and expansion of the possibilities of applying the synthetic material. The properties of a synthesized substance depend on the way it is produced, as the synthesis conditions influence the structural and morphological characteristics of the particles being formed. This work shows that, in the case of mechanochemical synthesis with the introduction of iron cations as a dopant, the structure of hydroxyapatite, in which the dopant occupies the position of the calcium cation, is formed. This type of substitution is accompanied by a decrease in the lattice parameters of the hydroxyapatite. It is shown that iron cations predominantly possess a 3+ charge, which is independent of the charge of the initial reagent containing the iron cation. It is also found that in the process of mechanochemical synthesis under certain conditions, the simultaneous partial replacement of calcium cations with iron cations and phosphate groups with carbonate group can be implemented. The powders obtained by mechanochemical synthesis are characterized by powder diffraction, infrared spectroscopy, X-ray absorption near edge structure spectroscopy (XANES), and Mössbauer spectroscopy.

KW - IR spectroscopy

KW - Mössbauer spectroscopy

KW - X-ray absorption spectroscopy

KW - hydroxyapatite

KW - iron

KW - mechanochemistry

KW - powder diffraction

KW - substitutions

UR - https://www.mendeley.com/catalogue/f9d5ce3b-4a60-3a22-a3f7-003b019ca32a/

U2 - 10.1134/S1027451023030266

DO - 10.1134/S1027451023030266

M3 - Article

VL - 17

SP - 687

EP - 693

JO - Journal of Surface Investigation

JF - Journal of Surface Investigation

SN - 1027-4510

IS - 3

ER -