The results of synthesis on the basis of nanocarbon for protection against a broad range of toxic chemical substances are presented. The analysis of the specimens’ structure shows that activation contributes to the formation of a great number of small pores and the development of a porous texture of sorbents, which leads to an increase in the specific surface. Activated specimens have a micromesoporosity confirmed by appropriate isotherms of low-temperature adsorption of nitrogen. It is shown that the procedure of activation results in specimens with various acidity, and this surface property has a marked effect on the characteristics of materials. The results of investigation of the breakthrough time for vapors of inorganic and organic substances show that Cu and Co ion impregnations are the most suitable for the production of a universal sorbent. Due to this, this paper presents the technology of obtaining activated charcoals impregnated with ions of various metals that can surpass sorption properties of commercial reference materials.
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Translated from Inzhenerno-Fizicheskii Zhurnal, Vol. 95, No. 6, pp. 1408–1418, November–December, 2022.
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Mansurov, Z.A., Velasco, L.F., Lodewyckx, P. et al. Modified Carbon Sorbents Based on Walnut Shell for Sorption of Toxic Gases. J Eng Phys Thermophy 95, 1383–1392 (2022). https://doi.org/10.1007/s10891-022-02607-7
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DOI: https://doi.org/10.1007/s10891-022-02607-7