The possibility of sorption and cocrystallization binding of lead(n) with nanohydroxyapatite (HAP) acting as a potential carrier of short-lived lead radionuclides 211,212Pb was studied. The peculiarities of the kinetics were revealed, and the isotherms of sorption of lead ions on hydroxyapatite with different textures were constructed. A multistage sorption mechanism accompanied by a change in the structure and morphology of the sorbent was studied. The possibility of the formation of a new phase (hydroxypyromorphite) of lead during the sorption and cocrystallization interaction was shown. The introduction of lead into the synthesis of HAP at the early stages of crystallization exerts the highest effect on its morphology and structure. The optimization of the formation of the HAP-Pb composite over the course of the process will make it possible to use the short-lived 211Pb radionuclide in subsequent experiments.

中文翻译：

---

纳米羟基磷灰石及其质地作为有前途的短寿命铅同位素的潜在载体

研究了铅 (n) 与作为短寿命铅放射性核素 211,212Pb 潜在载体的纳米羟基磷灰石 (HAP) 吸附和共结晶结合的可能性。揭示了动力学的特点，并构建了铅离子在不同质地羟基磷灰石上的吸附等温线。研究了伴随吸附剂结构和形态变化的多级吸附机制。显示了在吸附和共结晶相互作用过程中形成铅的新相（羟基焦亚铁矿）的可能性。在结晶的早期阶段将铅引入 HAP 的合成对其形态和结构的影响最大。