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 <front>
  <journal-meta>
   <journal-id journal-id-type="publisher-id">From Chemistry Towards Technology Step-By-Step</journal-id>
   <journal-title-group>
    <journal-title xml:lang="en">From Chemistry Towards Technology Step-By-Step</journal-title>
    <trans-title-group xml:lang="ru">
     <trans-title>От химии к технологии шаг за шагом</trans-title>
    </trans-title-group>
   </journal-title-group>
   <issn publication-format="online">2782-1900</issn>
  </journal-meta>
  <article-meta>
   <article-id pub-id-type="publisher-id">82414</article-id>
   <article-id pub-id-type="doi">10.52957/27821900_2022_01_08</article-id>
   <article-categories>
    <subj-group subj-group-type="toc-heading" xml:lang="ru">
     <subject>Научные статьи</subject>
    </subj-group>
    <subj-group subj-group-type="toc-heading" xml:lang="en">
     <subject>Scientific articles</subject>
    </subj-group>
    <subj-group>
     <subject>Научные статьи</subject>
    </subj-group>
   </article-categories>
   <title-group>
    <article-title xml:lang="en">Sorption of heavy metal ions from aqueous solutions by cellulose sorbent agent</article-title>
    <trans-title-group xml:lang="ru">
     <trans-title>Сорбция ионов тяжелых металлов целлюлозным сорбентом из водных растворов</trans-title>
    </trans-title-group>
   </title-group>
   <contrib-group content-type="authors">
    <contrib contrib-type="author">
     <name-alternatives>
      <name xml:lang="ru">
       <surname>Никифорова</surname>
       <given-names>Татьяна Евгеньевна</given-names>
      </name>
      <name xml:lang="en">
       <surname>Nokoforova</surname>
       <given-names>Tatyana Evgenjevna</given-names>
      </name>
     </name-alternatives>
     <email>tatianaenik@mail.ru</email>
     <bio xml:lang="ru">
      <p>доктор химических наук;</p>
     </bio>
     <bio xml:lang="en">
      <p>doctor of chemical sciences;</p>
     </bio>
     <xref ref-type="aff" rid="aff-1"/>
    </contrib>
    <contrib contrib-type="author">
     <name-alternatives>
      <name xml:lang="ru">
       <surname>Вокурова</surname>
       <given-names>Дарья Андреевна</given-names>
      </name>
      <name xml:lang="en">
       <surname>Vokurova</surname>
       <given-names>Daria Andreevna</given-names>
      </name>
     </name-alternatives>
     <email>fresh-limon@mail.ru</email>
     <xref ref-type="aff" rid="aff-1"/>
    </contrib>
   </contrib-group>
   <aff-alternatives id="aff-1">
    <aff>
     <institution xml:lang="ru">Ивановский государственный химико-технологический университет</institution>
    </aff>
    <aff>
     <institution xml:lang="en">Ivanovo State University of Chemistry and Technology</institution>
    </aff>
   </aff-alternatives>
   <pub-date publication-format="print" date-type="pub" iso-8601-date="2022-03-23T00:00:00+03:00">
    <day>23</day>
    <month>03</month>
    <year>2022</year>
   </pub-date>
   <pub-date publication-format="electronic" date-type="pub" iso-8601-date="2022-03-23T00:00:00+03:00">
    <day>23</day>
    <month>03</month>
    <year>2022</year>
   </pub-date>
   <volume>3</volume>
   <issue>1</issue>
   <fpage>8</fpage>
   <lpage>20</lpage>
   <history>
    <date date-type="received" iso-8601-date="2021-12-06T00:00:00+03:00">
     <day>06</day>
     <month>12</month>
     <year>2021</year>
    </date>
    <date date-type="accepted" iso-8601-date="2022-03-21T00:00:00+03:00">
     <day>21</day>
     <month>03</month>
     <year>2022</year>
    </date>
   </history>
   <self-uri xlink:href="https://chemintech.ru/en/nauka/article/82414/view">https://chemintech.ru/en/nauka/article/82414/view</self-uri>
   <abstract xml:lang="ru">
    <p>В работе исследована сорбция ионов тяжелых металлов из водных растворов целлюлозными сорбентами. Модифицирование древесной целлюлозы проводили поливинилпирролидоном и карбоновыми многоосновными кислотами. Изучены равновесие и кинетика сорбции ионов Cu(II), Cо(II) и Ni(II) из водных растворов образцами нативной и модифицированной древесной целлюлозы. Экспериментальные изотермы сорбции обработаны согласно моделям Ленгмюра и теории объемного заполнения микропор (ТОЗМ). Наиболее корректной для описания процесса сорбции ионов тяжелых металлов целлюлозными сорбентами является модель Ленгмюра. Установлено, что предельная сорбционная емкость модифицированных сорбентов в 1,5-2 раза превышает предельную сорбционную емкость нативной древесной целлюлозы. Полученные образцы можно расположить в следующий ряд в порядке возрастания их предельной сорбционной емкости (А∞): нативная древесная целлюлоза &lt; целлюлоза, модифицированная поливинилпирролидоном &lt; целлюлоза, модифицированная лимонной кислотой. Исследовано влияние кислотности среды на сорбцию ионов тяжелых металлов в области рН 1–7. Установлено, что с увеличением рН исходного раствора от 1 до 6 происходит резкий рост степени извлечения ионов Cu(II), Cо(II) и Ni(II). Получены ИК-спектры нативной целлюлозы и ее образцов, модифицированных поливинилпирролидоном и лимонной кислотой. Выполнен элементный анализ всех видов модифицированных сорбентов.</p>
   </abstract>
   <trans-abstract xml:lang="en">
    <p>The paper concerns the sorption of heavy metal ions from aqueous solutions by cellulose sorbents agents. We modified the wood cellulose by polyvinylpyrrolidone and carboxylic acids. Also we studied the equilibrium and kinetics of Cu(II), Co(II) and Ni(II) ions sorption from aqueous solutions by native and modified cellulose samples. We treated the sorption isotherms under study according to Langmuir models and theory for volume filling of micropores. The Langmuir model is the most correct one for description of the process of heavy metal ions sorption by cellulose sorbents agents. According to the study, the maximum sorption capacity of the modified sorbents is 1.5-2 times higher than the maximum sorption capacity of the native cellulose. The samples obtained can be arranged in the following order of increasing ultimate sorption capacity (A∞): native cellulose &lt; polyvinylpyrrolidone-modified pulp &lt; citric acid-modified pulp. In addition, we studied the influence of media acidity on the sorption of heavy metal ions in pH 1-7. We observed a significant increase in the pH of the initial solution from 1 to 6; there is a rapid increase of the degree of extraction of Cu(II), Cu(II) and Ni(II) ions. Experimentally we obtained the IR spectra of native wood cellulose and its samples modified by polyvinylpyrrolidone and citric acid. Also the authors made an elemental analysis of all types of modified sorbents.</p>
   </trans-abstract>
   <kwd-group xml:lang="ru">
    <kwd>древесная целлюлоза</kwd>
    <kwd>модификация</kwd>
    <kwd>ионы тяжелых металлов</kwd>
    <kwd>изотермы</kwd>
    <kwd>кинетика сорбции</kwd>
   </kwd-group>
   <kwd-group xml:lang="en">
    <kwd>cellulose</kwd>
    <kwd>modification</kwd>
    <kwd>heavy metal ions</kwd>
    <kwd>isotherms</kwd>
    <kwd>sorption kinetics</kwd>
   </kwd-group>
   <funding-group>
    <funding-statement xml:lang="ru">Исследование проведено с использованием ресурсов Центра коллективного пользования научным оборудованием ИГХТУ (при поддержке Минобрнауки России, соглашение № 075-15-2021-671). Работа выполнена в рамках государственного задания на выполнение НИР. Тема № FZZW-2020-0010.</funding-statement>
    <funding-statement xml:lang="en">The study was carried out using the resources of the Center for Shared Use of Scientific Equipment of the ISUCT (with the support of the Ministry of Science and Higher Education of Russia, grant No. 075-15-2021-671). This work was funded by the Ministry of Science and Higher Education of the Russian Federation (Project No. FZZW–2020–0010).</funding-statement>
   </funding-group>
  </article-meta>
 </front>
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