2D Carbon Nanomaterials as Promising Adsorbents of Uranium
A. P. Karmanova, *, A. P. Voznyakovskyb, L. S. Kochevac,
N. G. Rachkovaa, V. A. Demind, and N. I. Bardanoviche, **
a Institute of Biology of Komi Scientific Center, Ural Branch, Russian Academy of Sciences, Syktyvkar, 167982 Russia
b Federal State Unitary Enterprise “S.V. Lebedev Institute of Synthetic Rubber”, St. Peterburg, 198035 Russia
c Geology Institute of Komi Scientific Center, Ural Branch, Russian Academy of Sciences, Syktyvkar, 167982 Russia
d Syktyvkar Forest Institute, Syktyvkar, 167982 Russia
e Lomonosov Northern (Arctic) Federal University, Arkhangelsk, 163002 Russia
Correspondence to: *e-mail: apk0948@yandex.ru
Correspondence to: **e-mail: n.bogdanovich@narfu.ru
Received 4 March, 2021
Abstract—The phenomena of U238 sorption/desorption onto 2D carbon nanomaterials prepared by the self-propagating high-temperature synthesis (SHS) technique from both natural and technical lignins were investigated. Electron microscopy, pyrolytic chromatography–mass spectrometry, Fourier-transform IR spectroscopy, X-ray diffraction, Raman spectroscopy, and low-temperature nitrogen adsorption/desorption were used to study the graphene materials and lignins. The main regularities of the adsorption processes from aqueous media with low concentrations of uranium were established for the first time from structural-chemical investigations, results of studying the surface-porous structure of the samples, and correlation analysis. The obtained results testify that 2D carbon nanomaterials synthesized by the SHS technique possess a high innovative potential.
DOI: 10.1134/S2070205121050117