Вид документа : Статья из журнала Шифр издания : Автор(ы) : Chupakhin O. N., Musikhina A. A, Utepova I. A., Charushin V. N., Rempel A. A., Pryakhina V. I., Zyryanova E. Y., Pershina S. V., Yolshina L. A., Vovkotrub E. G. Заглавие : Synthesis and properties of azines functionalized graphene with extremely high adsorptive ability to Eu3+ ions Место публикации : Flatchem. - 2022. - Vol. 33. - С. 100348 Предметные рубрики: ХИМИЧЕСКИЕ НАУКИ Аннотация: In this work, a versatile synthetic protocol for obtaining of new promising carbon materials based on the C–C coupling of graphenide lithium species with azaaromatic compounds (1,10-phenanthroline, phenyl-1,2,5-oxadiazolo[3,4-b]pyrazine) has been suggested. It was shown that more electrophilic oxadiazolopyrazine gave the product with high degree of graphene functionalization and demonstrated non-isomorphic properties. At the same time, phenanthrolinyl graphene has less functionalization degree due to a lower electrophilicity of azine. However, the large size of pores between organic residues in phenanthrolinyl graphene allows adsorbing almost 10% of Eu3+. The mesurment of adsorption isotherm showed an extremely high affinity of phenanthrolinylgraphene to Eu (III) ions in netural or alkaline conditions, and the obtained hybrid material could work at least 5 sorption/desorption cycles. The structures of azine-graphene dyads were verified by complex of modern physicochemical analyses methods (the Raman spectroscopy, FTIR, XPS, SEM, EDS and TGA analyses). Доп.точки доступа: Chupakhin, O. N.; Musikhina, A. A; Utepova, I. A.; Charushin, V. N.; Rempel, A. A.; Pryakhina, V. I.; Zyryanova, E. Y.; Pershina, S. V.; Yolshina, L. A.; Vovkotrub, E. G.