D.D. Assylkhanova1, M. Najipkyzy2, A. Nurgain3, A.R. Seitkazinova4, A.I. Niyazbaeva5,
A.A. Zekenova6, S.V. Agasieva7, G.A. Gudkov8

1, 6, 7 Peoples' Friendship University of Russia (Moscow, Russia)
1, 2, 4–6 Al-Farabi Kazakh National University (Almaty, Kazakhstan)
1–3 RSE on PCV Institute of Combustion (Almaty, Kazakhstan)
8 Hyperion ltd (Moscow, Russia)
 

Among the various types of sorbents, carbon sorbents are of particular interest. This is due to their unique physicochemical properties. One of the important physical properties of sorbents is hydrophobicity. They have found wide application for the removal, collection of oil and petroleum products. This paper presents a method for obtaining nanostructured hydrophobic carbon black.

Purpose – to obtain magnetic nanostructured hydrophobic carbon black and study the resulting sorbent for oil adsorption on the water surface.

Soot is amorphous carbon, the product of incomplete combustion (in our case, propane-butane mixture). Synthesis was carried out using burners with a narrow slit. The flame of the burning mixture comes into contact with a moving metal surface, the soot deposited on the metal surface is quickly removed. Further, the hydrophobic soot was transformed into a magnetic material by impregnation/heating followed by heat treatment. Magnetic nanoparticles (Fe, Co, Ni) were deposited on the surface of soot particles. The results of a study on the use of the obtained soot with hydrophobic properties in water purification are shown. Such soot can provide high oil absorption and the ability to regenerate. Soot with adsorbed oil was easily separated from the aqueous phase.

The results showed that the deposition of this soot on fibrous or highly porous media, such as foam or sponges, can lead to the production of inexpensive adsorbents with high adsorption capacity and ease of mechanical separation after the cleaning process.

Assylkhanova D.D., Najipkyzy M., Nurgain A., Seitkazinova A.R., Niyazbaeva A.I., Zekenova A.A., Agasieva S.V., Gudkov G.A. Applica­tion of nanostructured hydrophobic soot for water purification. Nanotechnology: development and applications – XXI century. 2022. V. 14. № 1. P. 13–21. DOI: https://doi.org/10.18127/j22250980-202201-02 (in Russian)

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