ekipЭкология и промышленность РоссииEcology and Industry of Russia1816-03952413-6042ООО "Калвис"10.18412/1816-0395-2022-12-22-27ekip-2242Research ArticleНАУЧНЫЕ РАЗРАБОТКИSCIENTIFIC DEVELOPMENTSКинетические характеристики извлечения катионов меди(II) из водных сред гидрогелевым сорбентом хитозан–диоксид кремнияKinetic Characteristics of Extraction of Copper(II) Cations from Aqueous Media by Chitosan–Silicon Dioxide Hydrogel SorbentФуфаеваВ.А.FufaevaV.A.

аспирант

Post-graduate Student

podpiska@kalvis.ruНикифороваТ.Е.NikiforovaT.E.

д-р хим. наук, доцент

Dr. Sci. (Chem.), Associate Professor

podpiska@kalvis.ruРазговоровП.Б.RazgovorovP.B.

д-р техн. наук, профессор

Dr. Sci. (Eng.), Professor

podpiska@kalvis.ruИгнатьевА.А.IgnatуevA.A.

канд. техн. наук, доцент

Cand. Sci. (Eng.), Associate Professor

podpiska@kalvis.ruИвановский государственный химико-технологический университетРоссияIvanovo State University of Chemistry and TechnologyRussian FederationЯрославский государственный технический университетРоссияYaroslavl State Technical UniversityRussian FederationРоссийский дорожный научно-исследовательский институтРоссияRussian Road Scientific Research InstituteRussian Federation20223011202226122227Copyright © ООО "Калвис", 20222022ООО "Калвис"ООО "Калвис"https://www.ecology-kalvis.ru/jour/about/submissions#copyrightNoticehttps://www.ecology-kalvis.ru/jour/article/view/2242

Экспериментально подтверждена эффективность извлечения из водных сред ионов меди(II) с использованием разработанного сорбента на основе хитозана и пирогенного диоксида кремния. Определены кинетические параметры процесса путем обработки кинетических кривых сорбции меди с помощью моделей первого и второго порядка. Выявлено, что в результате объемной модификации гранул хитозана диоксидом кремния происходит увеличение до 36 мг·г-1 сорбционной емкости материала по сравнению с гранулами исходного хитозана (9 мг·г-1), при этом степень извлечения ионов меди(II) достигает 99,5 %. Изучены инфракрасные спектры и микрофотографии образцов сорбента хитозан–диоксид кремния. Рассчитана величина удельной поверхности сорбента по уравнению Ленгмюра, методам БЭТ и А.В. Киселева.

The efficiency of copper (II) ions extraction from aqueous media using newly developed sorbent based on chitosan and pyrogenic silicon dioxide has been experimentally confirmed. Kinetic parameters of the process were determined by processing the kinetic curves of copper sorption using models of the first and second order. It was found that as a result of the volumetric modification of chitosan granules with silicon dioxide, the sorption capacity of the material increases to 36 mg·g-1, compared with the granules of the original chitosan (9 mg·g-1). The degree of extraction of copper (II) ions reaches 99.5 % in this case. Infrared spectra and microphotographs of chitosan-silicon dioxide samples of the sorbent were studied. The value of the specific surface of the sorbent was calculated using Langmuir equation, BET and A.V. Kiselev’s methods.

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The authors declare that there are no conflicts of interest present.