Sonication impact on the structure of graphite oxide reduced by thiourea

N.V. Alemasova¹, S.R. Sukhova¹, V.V. Kravchenko¹, M.A. Zozulya¹, L.A. Prokofieva¹, V.V. Burkhovetskiy², M.V. Savoskin¹

¹ L.M. Litvinenko Institute of Physical Organic and Coal Chemistry
² Donetsk Institute for Physics and Engineering named after A.A. Galkin

DOI: 10.26456/pcascnn/2020.12.765

Original article

Abstract: The sonication impact on the process of the Hummers graphite oxide reduction by thiourea was investigated. It was found that treatment of the graphite oxide with thiourea leads to the partial removing of oxygen-containing and formation of sulfur-containing functional groups on the graphite oxide surface. The low-power ultrasound promotes an increase in the graphite oxide surface functionalization by sulfur. The morphology of the partially reduced and functionalized graphite oxide particles was studied by using the scanning and transmission electron microscopy. It was shown that ultrasound promotes the formation of a hydrogel with a highly developed surface.

Keywords: graphite oxide, reduction, functionalization, thiourea, sonication, structure, scanning electron microscopy, transmission electron microscopy

• Natalya V. Alemasova – Ph. D., Senior Researcher, L.M. Litvinenko Institute of Physical Organic and Coal Chemistry
• Svetlana R. Sukhova – Junior Researcher, L.M. Litvinenko Institute of Physical Organic and Coal Chemistry
• Violetta V. Kravchenko – Junior Researcher, L.M. Litvinenko Institute of Physical Organic and Coal Chemistry
• Michael A. Zozulya – Engineer, L.M. Litvinenko Institute of Physical Organic and Coal Chemistry
• Lyudmila A. Prokofieva – Lead Engineer, L.M. Litvinenko Institute of Physical Organic and Coal Chemistry
• Valeriy V. Burkhovetskiy – Researcher, Donetsk Institute for Physics and Engineering named after A.A. Galkin
• Michael V. Savoskin – Ph. D., Senior Researcher, L.M. Litvinenko Institute of Physical Organic and Coal Chemistry

Reference:

Alemasova N.V., Sukhova S.R., Kravchenko V.V., Zozulya M.A., Prokofieva L.A., Burkhovetskiy V.V., Savoskin M.V. Vliyanie ultrazvuka na strukturu vosstanovlennogo tiomochevinoj oksida grafita [Sonication impact on the structure of graphite oxide reduced by thiourea], Fiziko-khimicheskie aspekty izucheniya klasterov, nanostruktur i nanomaterialov [Physical and chemical aspects of the study of clusters, nanostructures and nanomaterials], 2020, issue 12, pp. 765-774. DOI: 10.26456/pcascnn/2020.12.765. ⎘

Full article (in Russian): download PDF file

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