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Pharmaceuticals removal by adsorption with montmorillonite nanoclay

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dc.contributor.author Kryuchkova M.
dc.contributor.author Batasheva S.
dc.contributor.author Akhatova F.
dc.contributor.author Babaev V.
dc.contributor.author Buzyurova D.
dc.contributor.author Vikulina A.
dc.contributor.author Volodkin D.
dc.contributor.author Fakhrullin R.
dc.contributor.author Rozhina E.
dc.date.accessioned 2022-02-09T20:38:30Z
dc.date.available 2022-02-09T20:38:30Z
dc.date.issued 2021
dc.identifier.issn 1661-6596
dc.identifier.uri https://dspace.kpfu.ru/xmlui/handle/net/169511
dc.description.abstract The problem of purifying domestic and hospital wastewater from pharmaceutical compounds is becoming more and more urgent every year, because of the continuous accumulation of chemical pollutants in the environment and the limited availability of freshwater resources. Clay adsorbents have been repeatedly proposed as adsorbents for treatment purposes, but natural clays are hydrophilic and can be inefficient for catching hydrophobic pharmaceuticals. In this paper, a comparison of adsorption properties of pristine montmorillonite (MMT) and montmorillonite modified with stearyl trimethyl ammonium (hydrophobic MMT-STA) towards carbamazepine, ibuprofen, and paracetamol pharmaceuticals was performed. The efficiency of adsorption was investigated under varying solution pH, temperature, contact time, initial concentration of pharmaceuticals, and adsorbate/adsorbent mass ratio. MMT-STA was better than pristine MMT at removing all the pharmaceuticals studied. The adsorption capacity of hydrophobic montmorillonite to pharmaceuticals decreased in the following order: carbamazepine (97%) >ibuprofen (95%) > paracetamol (63–67%). Adsorption isotherms were best described by Freundlich model. Within the pharmaceutical concentration range of 10–50 µg/mL, the most optimal mass ratio of adsorbates to adsorbents was 1:300, pH 6, and a temperature of 25◦ C. Thus, MMT-STA could be used as an efficient adsorbent for deconta×ating water of carbamazepine, ibuprofen, and paracetamol.
dc.relation.ispartofseries International Journal of Molecular Sciences
dc.subject Adsorption
dc.subject Clay minerals
dc.subject Pharmaceuticals
dc.subject Treatment effectiveness
dc.title Pharmaceuticals removal by adsorption with montmorillonite nanoclay
dc.type Article
dc.relation.ispartofseries-issue 18
dc.relation.ispartofseries-volume 22
dc.collection Публикации сотрудников КФУ
dc.source.id SCOPUS16616596-2021-22-18-SID85114345283

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  • Публикации сотрудников КФУ Scopus [24551]
    Коллекция содержит публикации сотрудников Казанского федерального (до 2010 года Казанского государственного) университета, проиндексированные в БД Scopus, начиная с 1970г.

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