Synthesis of Novel Composite Sorbents Based on Titanium, Calcium, and Magnesium Phosphates

IF 0.8 4区 化学 Q4 CHEMISTRY, MULTIDISCIPLINARY Doklady Chemistry Pub Date : 2024-03-08 DOI:10.1134/S0012500824600020
N. V. Mudruk, M. V. Maslova,  A. I. Nikolaev
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Abstract

Heterogeneous and mechanochemical syntheses of new materials based on titanium, calcium, and magnesium phosphates were developed for the first time. The products demonstrated high efficiency as sorbents for the removal of heavy metal cations and radionuclides from solutions. The joint action of the sorption components ensures high sorption capacity towards various cations over a wide pH range. The optimal conditions providing products with a specified phase composition were identified. The use of a solution of a phosphorus-containing agent and solid precursors taken in a stoichiometric ratio, together with mild hydrothermal conditions make it possible to minimize the amount of liquid waste. In the first step of the synthesis, precipitation of titanium phosphate and formation of the precursor needed for the second step (formation of calcium and magnesium phosphates) take place simultaneously. Thus, the synthesis protocol complies with the green chemistry principles.

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基于钛、钙和镁磷酸盐的新型复合吸附剂的合成
摘要 首次开发了基于钛、钙和镁磷酸盐的异构和机械化学合成新材料。这些产品作为吸附剂可高效去除溶液中的重金属阳离子和放射性核素。吸附成分的共同作用确保了在较宽的 pH 值范围内对各种阳离子的高吸附能力。确定了提供具有特定相组成的产品的最佳条件。含磷剂溶液和固体前驱体按一定比例混合使用,再加上温和的水热条件,可以最大限度地减少废液量。在合成的第一步,磷酸钛的沉淀和第二步(钙镁磷酸盐的形成)所需前体的形成同时进行。因此,该合成方案符合绿色化学原则。
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来源期刊
Doklady Chemistry
Doklady Chemistry 化学-化学综合
CiteScore
1.20
自引率
12.50%
发文量
7
审稿时长
6-12 weeks
期刊介绍: Doklady Chemistry is a journal that publishes new research in chemistry and chemical engineering of great significance. Initially the journal was a forum of the Russian Academy of Science and published only best contributions from Russia in the form of short articles. Now the journal welcomes submissions from any country in the English or Russian language. Every manuscript must be recommended by Russian or foreign members of the Russian Academy of Sciences.
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