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Effect of Sorption Conditions on the State of Copper(II) Ions in the Phase of AN-31 Ion Exchange Resin, According to Data from ESR and UV–Vis Diffuse Reflectance Spectroscopy Научная публикация

Журнал Russian Journal of Physical Chemistry A
ISSN: 0036-0244 , E-ISSN: 1531-863X
Вых. Данные Год: 2017, Том: 91, Номер: 8, Страницы: 1548-1556 Страниц : 9 DOI: 10.1134/S0036024417080337
Ключевые слова AN-31 anion exchanger, copper(II) sorption, ESR, structure of copper(II) complexes, UV–Vis diffuse reflectance spectroscopy
Авторы Stroganova E.A. 1 , Anufrienko V.F. 2 , Larina T.V. 2 , Vasenin N.T. 2 , Lebedev Yu.A. 3 , Parmon V.N. 2
Организации
1 Orenburg State University, Orenburg, 460018 Russia
2 Boreskov Institute of Catalysis, Siberian Branch of Russian Academy of Sciences, Novosibirsk, 630090 Russia
3 Institute of the Physics of Molecules and Crystals, Russian Academy of Sciences, Ufa Scientific Center, Ufa, 450075 Russia

Информация о финансировании (1)

1 Оренбургский государственный университет 14-33-50262

Реферат: It is found that the sorption recovery of copper ions from water solutions in the phase of AN-31 low basicity anion exchanger has a mixed character. It is established via diffuse reflectance spectroscopy that ions are stabilized through complexation with the participation of the functional groups of the sorbent with the formation of structures [Cu(NR3)2(OH)2(H2O)2], [Cu(NR3)3(OH)(H2O)2], and as a result of the physical adsorption of oxide dimers and planar-squared copper clusters. It is shown that increasing the ionic strength of a solution by introducing sodium chloride into the system greatly improves the capacity of the sorbent and leads to the uniform distribution of copper ions in the resin matrix. The similarity between the ESR spectrum parameters of copper-containing samples of the ion exchanger, obtained in a wider range of pH, is determined via ESR and testifies to the homogeneity of the stabilization positions of Cu2+ ions. The crystalline field of tetragonal-elongated octahedron is typical of all Cu2+ ions. All of the complexes have Cu(NO3)2 coordination nodes with the covalent bonding of Cu2+ ions and the amine groups of the sorbent.
Библиографическая ссылка: Stroganova E.A. , Anufrienko V.F. , Larina T.V. , Vasenin N.T. , Lebedev Y.A. , Parmon V.N.
Effect of Sorption Conditions on the State of Copper(II) Ions in the Phase of AN-31 Ion Exchange Resin, According to Data from ESR and UV–Vis Diffuse Reflectance Spectroscopy
Russian Journal of Physical Chemistry A. 2017. V.91. N8. P.1548-1556. DOI: 10.1134/S0036024417080337 WOS Scopus РИНЦ CAPlus OpenAlex
Оригинальная: Строганова Е.А. , Ануфриенко В.Ф. , Ларина Т.В. , Васенин Н.Т. , Лебедев Ю.А. , Пармон В.Н.
Влияние условий сорбции на состояние ионов меди(II) в фазе ионообменной смолы АН-31 по данным ЭПР и электронной спектроскопии диффузного отражения
Журнал физической химии. 2017. Т.91. №8. С.1383-1391. РИНЦ
Даты:
Поступила в редакцию: 5 июл. 2016 г.
Опубликована online: 15 июл. 2017 г.
Опубликована в печати: 1 авг. 2017 г.
Идентификаторы БД:
Web of science: WOS:000405703100028
Scopus: 2-s2.0-85024115621
РИНЦ: 31067830
Chemical Abstracts: 2017:1178874
OpenAlex: W2735648000
Цитирование в БД:
БД Цитирований
Web of science 2
Scopus 2
РИНЦ 2
OpenAlex 2
Альметрики: