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<article xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:ali="http://www.niso.org/schemas/ali/1.0/" article-type="research-article" dtd-version="1.2" xml:lang="en"><front><journal-meta><journal-id journal-id-type="publisher-id">Doklady Chemistry</journal-id><journal-title-group><journal-title xml:lang="en">Doklady Chemistry</journal-title><trans-title-group xml:lang="ru"><trans-title>Доклады Российской академии наук. Химия, науки о материалах</trans-title></trans-title-group></journal-title-group><issn publication-format="print">2686-9535</issn><issn publication-format="electronic">3034-5111</issn><publisher><publisher-name xml:lang="en">The Russian Academy of Sciences</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="publisher-id">651918</article-id><article-id pub-id-type="doi">10.31857/S2686953524010033</article-id><article-categories><subj-group subj-group-type="toc-heading" xml:lang="en"><subject>CHEMISTRY</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="ru"><subject>ХИМИЯ</subject></subj-group><subj-group subj-group-type="article-type"><subject>Research Article</subject></subj-group></article-categories><title-group><article-title xml:lang="en">Synthesis of novel composite sorbents based on titanium, calcium and magnesium phosphates</article-title><trans-title-group xml:lang="ru"><trans-title>Синтез новых композиционных сорбентов на основе фосфатов титана, кальция и магния</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Mudruk</surname><given-names>N. V.</given-names></name><name xml:lang="ru"><surname>Мудрук</surname><given-names>Н. В.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>n.mudruk@ksc.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Maslova</surname><given-names>M. V.</given-names></name><name xml:lang="ru"><surname>Маслова</surname><given-names>М. В.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>n.mudruk@ksc.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Nikolaev</surname><given-names>A. I.</given-names></name><name xml:lang="ru"><surname>Николаев</surname><given-names>А. И.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>Corresponding Member of the RAS</p></bio><bio xml:lang="ru"><p>член-корреспондент РАН</p></bio><email>n.mudruk@ksc.ru</email><xref ref-type="aff" rid="aff1"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">Tananaev Institute of Chemistry – Subdivision of the Federal Research Centre “Kola Science Centre of the Russian Academy of Sciences” Science Centre of the Russian Academy of Sciences (ICT KSC RAS)</institution></aff><aff><institution xml:lang="ru">Обособленное подразделение Федерального исследовательского центра “Кольский научный центр Российской академии наук” Институт химии и технологии редких элементов и минерального сырья им. И.В. Тананаева</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2024-04-05" publication-format="electronic"><day>05</day><month>04</month><year>2024</year></pub-date><volume>514</volume><issue>1</issue><fpage>32</fpage><lpage>40</lpage><history><date date-type="received" iso-8601-date="2025-02-02"><day>02</day><month>02</month><year>2025</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2024, Russian Academy of Sciences</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2024, Российская академия наук</copyright-statement><copyright-year>2024</copyright-year><copyright-holder xml:lang="en">Russian Academy of Sciences</copyright-holder><copyright-holder xml:lang="ru">Российская академия наук</copyright-holder></permissions><self-uri xlink:href="https://journals.eco-vector.com/2686-9535/article/view/651918">https://journals.eco-vector.com/2686-9535/article/view/651918</self-uri><abstract xml:lang="en"><p>Heterogonous and mechanochemical synthesis of new materials based on titanium, calcium and magnesium phosphates have been developed for the first time. Final products demonstrate high sorption efficiency towards heavy metal cations and radionuclides. The combined action of the components ensures high sorption capacity towards different cations within a wide pH range. The optimal conditions of the processes providing the obtaining of composite products with given phase composition have been established. Using solid precursors and phosphorus-containing agents taken in a stoichiometric ratio, and mild hydrothermal conditions make it possible to reduce liquid waste to a minimum level. During the first step of synthesis both precipitation of titanium phosphate and formation of ammonium phosphate which is the precursor for the second step occur. The latter is the formation of calcium and magnesium phosphates. Thus, the synthesis proceeds in accordance with the principles of green chemistry.</p></abstract><trans-abstract xml:lang="ru"><p>Впервые разработаны гетерогенный и механохимический способы синтеза новых композиционных материалов на основе фосфатов титана, кальция и магния, демонстрирующих высокую эффективность в качестве сорбентов при очистке растворов от катионов тяжелых металлов и радионуклидов. Совместное действие отдельных компонентов сорбента обеспечивает его высокую сорбционную емкость по отношению к различным катионам в широком диапазоне pH. Установлены оптимальные условия, обеспечивающие получение продуктов с заданным фазовым составом. Использование раствора фосфорсодержащего агента и твердых прекурсоров, взятых в стехиометрическом соотношении, и мягкие гидротермальные условия позволяют свести объемы жидких отходов к минимальному значению. На первой стадии синтеза, помимо осаждения фосфата титана, происходит образование прекурсора, необходимого для второй стадии – формирования кислых фосфатов кальция и магния. Таким образом, процедура синтеза соответствует принципам “зеленой химии”.</p></trans-abstract><kwd-group xml:lang="en"><kwd>heterogonous synthesis</kwd><kwd>mechanochemical synthesis</kwd><kwd>sorbents</kwd><kwd>titanium phosphates</kwd><kwd>calcium phosphates</kwd><kwd>magnesium phosphates</kwd><kwd>sorption</kwd><kwd>radionuclides</kwd><kwd>toxic metal ions</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>гетерогенный синтез</kwd><kwd>механохимический синтез</kwd><kwd>сорбенты</kwd><kwd>фосфаты титана</kwd><kwd>фосфаты кальция</kwd><kwd>фосфаты магния</kwd><kwd>сорбция</kwd><kwd>радионуклиды</kwd><kwd>ионы тяжелых металлов</kwd></kwd-group><funding-group><award-group><funding-source><institution-wrap><institution xml:lang="ru">Российский научный фонд</institution></institution-wrap><institution-wrap><institution xml:lang="en">Russian Science Foundation</institution></institution-wrap></funding-source><award-id>23-23-00187</award-id></award-group><funding-statement xml:lang="en">The research was carried out with the financial support of the Russian Science Foundation within the framework of scientific project No. 23-23-00187.</funding-statement><funding-statement xml:lang="ru">Исследования выполнены при финансовой поддержке Российского научного фонда в рамках научного проекта №23-23-00187.</funding-statement></funding-group></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>Robinson J.L., Brudnicki P., Lu H.H. // Comprehensive Biomaterials II. 2017. 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