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<article article-type="research-article" dtd-version="1.3" 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" xml:lang="ru"><front><journal-meta><journal-id journal-id-type="publisher-id">geolmsu</journal-id><journal-title-group><journal-title xml:lang="ru">ВЕСТНИК МОСКОВСКОГО УНИВЕРСИТЕТА. СЕРИЯ 4. ГЕОЛОГИЯ</journal-title><trans-title-group xml:lang="en"><trans-title>Moscow University Bulletin. Series 4. Geology</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">0579-9406</issn><publisher><publisher-name>Издательский Дом МГУ</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.55959/MSU0579-9406-4-2026-65-1-91-96</article-id><article-id custom-type="elpub" pub-id-type="custom">geolmsu-888</article-id><article-categories><subj-group subj-group-type="heading"><subject>Research Article</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="ru"><subject>Статьи</subject></subj-group></article-categories><title-group><article-title>Адсорбция кадмия на тальке (Кинетика и равновесие)</article-title><trans-title-group xml:lang="en"><trans-title>Аdsorption of cadmium on talc (kinetics and equilibrium)</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Карасева</surname><given-names>О. Н.</given-names></name><name name-style="western" xml:lang="en"><surname>Karaseva</surname><given-names>O. N.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Ольга Николаевна Карасева</p><p>Черноголовка</p></bio><bio xml:lang="en"><p>Olga N. Karaseva </p><p>Chernogolovka</p></bio><email xlink:type="simple">olga@iem.ac.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-0463-0731</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Ханин</surname><given-names>Д. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Khanin</surname><given-names>D. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Дмитрий Александрович Ханин </p><p>Черноголовка; Москва</p></bio><bio xml:lang="en"><p>Dmitriy A. Khanin </p><p>Chernogolovka; Moscow </p></bio><email xlink:type="simple">mamontenok49@yandex.ru</email><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-2878-0884</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Лакштанов</surname><given-names>Л. З.</given-names></name><name name-style="western" xml:lang="en"><surname>Lakshtanov</surname><given-names>L. Z.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Леонид Зиновьевич Лакштанов </p><p>Черноголовка</p></bio><bio xml:lang="en"><p>Leonid Z. Lakshtanov </p><p>Chernogolovka</p></bio><email xlink:type="simple">leonid@iem.ac.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Институт экспериментальной минералогии имени академика Д.С. Коржинского</institution><country>Россия</country></aff><aff xml:lang="en"><institution>D.S. Korzhinskii Institute of Experimental Mineralogy</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Институт экспериментальной минералогии имени академика Д.С. Коржинского ; Московский государственный университет имени М.В. Ломоносова</institution><country>Россия</country></aff><aff xml:lang="en"><institution>D.S. Korzhinskii Institute of Experimental Mineralogy ; Lomonosov Moscow State University</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2026</year></pub-date><pub-date pub-type="epub"><day>07</day><month>03</month><year>2026</year></pub-date><volume>65</volume><issue>1</issue><fpage>91</fpage><lpage>96</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Карасева О.Н., Ханин Д.А., Лакштанов Л.З., 2026</copyright-statement><copyright-year>2026</copyright-year><copyright-holder xml:lang="ru">Карасева О.Н., Ханин Д.А., Лакштанов Л.З.</copyright-holder><copyright-holder xml:lang="en">Karaseva O.N., Khanin D.A., Lakshtanov L.Z.</copyright-holder><license xml:lang="ru" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>Данная работа распространяется под лицензией Creative Commons Attribution 4.0.</license-p></license><license xml:lang="en" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>This work is licensed under a Creative Commons Attribution 4.0 License.</license-p></license></permissions><self-uri xlink:href="https://vestnik.geol.msu.ru/jour/article/view/888">https://vestnik.geol.msu.ru/jour/article/view/888</self-uri><abstract><p>Исследована адсорбция ионов кадмия на поверхности природного талька. Получены зависимости величины адсорбции от рН раствора при 25 °С. Показано, что максимальное поглощение кадмия из раствора происходит при рН 7–8. Адсорбция наиболее интенсивно протекает в первые 5 мин, адсорбционное равновесие устанавливается примерно через 40 мин после контакта минерал/раствор. Установлен вклад в общую скорость процесса стадии химического взаимодействия ионов кадмия с поверхностью талька, что подтверждается соответствием экспериментальных данных и кинетической моделью псевдо-второго порядка. Изотермы адсорбции наиболее адекватно описываются моделью Фрейндлиха, что указывает на неоднородность поверхностных адсорбционных центров, обладающих различной энергией. Эффективное поглощение тальком ионов кадмия обусловливает возможность использования талька в качестве сорбента для очистки природных и промышленных сточных вод в широком диапазоне рН.</p></abstract><trans-abstract xml:lang="en"><p>The adsorption of cadmium ions on the surface of natural talc was studied. The dependences of the adsorption value on the pH of the solution at 25 °C were obtained. It was shown that the maximum absorption of cadmium from the solution occurs at pH 7–8. Adsorption is most intense in the first 5 min, the adsorption equilibrium is established approximately 40 min after the mineral/solution contact. The contribution of the stage of chemical interaction of cadmium ions with the talc surface to the overall rate of the process was established, which is confirmed by the agreement between the experimental data and the pseudo-second-order kinetic model. Adsorption isotherms are most adequately described by the Freundlich model, which indicates the heterogeneity of the surface adsorption centers with different energies. The effective sorption of cadmium ions by talc makes it possible to use talc as a sorbent for the purification of natural and industrial wastewater in a wide pH range.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>адсорбция</kwd><kwd>кадмий</kwd><kwd>тальк</kwd><kwd>кинетика</kwd><kwd>изотермы адсорбции</kwd></kwd-group><kwd-group xml:lang="en"><kwd>adsorption</kwd><kwd>cadmium</kwd><kwd>talc</kwd><kwd>kinetics</kwd><kwd>adsorption isotherms</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Исследования выполнены за счет средств Российского научного фонда, проект № 22-27-00035. Аналитические работы выполнены в рамках госбюджетной темы «Экспериментальное и теоретическое моделирование растворимости и форм переноса компонентов во флюидно-магматических и гидротермальных системах (№ FMUF- 2022-0003).</funding-statement></funding-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">Карасева О., Лакштанов Л., Ханин Д. и др. Влияние рН, СО 2 и органических лигандов на кинетику растворения талька и лизардита // Геохимия. 2024. Т. 69, № 4. С. 393–403.</mixed-citation><mixed-citation xml:lang="en">Карасева О., Лакштанов Л., Ханин Д. и др. Влияние рН, СО 2 и органических лигандов на кинетику растворения талька и лизардита // Геохимия. 2024. Т. 69, № 4. С. 393–403.</mixed-citation></citation-alternatives></ref><ref id="cit2"><label>2</label><citation-alternatives><mixed-citation xml:lang="ru">Карасева О., Лакштанов Л., Ханин Д. и др. 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