Y M Shulga, S A Baskakov, E N Kabachkov, M V Zhidkov, N N Dremova, A V Alperovich, P P Kushch, G A Kichigina, D P Kiryukhin, Yu V Baskakova, S S Krasnikova, N Y Shulga, K G Belay, G L Gutsev
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引用次数: 0
Abstract
In this work, monolithic graphene oxide aerogel (GOA) with a volume of about 4 cm3 was obtained. In order to modify its properties, the GOA samples were irradiated with 60Co gamma rays with doses from 10 to 220 kGy. By using XPS it was found that the oxygen/carbon ratio in the samples studied decreases as a result of irradiation. A blue shift of the G peak is observed in the Raman spectra of the irradiated samples which indicates an increase in the proportion of sp3 bonds during irradiation. It was shown for the first time that detachment of the surface layer from the GOA monolith begins at a dose of 40 kGy. It turned out that the pore sizes on the outer side of the exfoliated layer of the GOA monolith are smaller than those of the inner layers. The surface layer removal improves the GOA sorption properties towards n-hexane.
期刊介绍：
ChemPhysChem is one of the leading chemistry/physics interdisciplinary journals (ISI Impact Factor 2018: 3.077) for physical chemistry and chemical physics. It is published on behalf of Chemistry Europe, an association of 16 European chemical societies.
ChemPhysChem is an international source for important primary and critical secondary information across the whole field of physical chemistry and chemical physics. It integrates this wide and flourishing field ranging from Solid State and Soft-Matter Research, Electro- and Photochemistry, Femtochemistry and Nanotechnology, Complex Systems, Single-Molecule Research, Clusters and Colloids, Catalysis and Surface Science, Biophysics and Physical Biochemistry, Atmospheric and Environmental Chemistry, and many more topics. ChemPhysChem is peer-reviewed.
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