Abstract
The results of the thermal modification of AG-OV-1 and SKD-515 activated carbons under varied conditions (by atmospheric oxygen and in an atmosphere of nitrogen) are reported. It was determined that, on the thermal oxidation under selected conditions, the formation of surface oxygen compounds predominated over the process of their destruction. Upon thermal treatment in an inert atmosphere, oxygen-containing acid-type groups were removed from the surface of activated carbons or converted into pyrone (basic) and ether structures. It was shown that a change in the porous structure and the surface functional group composition of the activated carbons depends on not only the conditions of modification but also the properties of the initial carbon adsorbents. Heating in an atmosphere of air led to an increase in the adsorption of both benzene and water vapors, whereas the heat treatment of activated carbons in the inert atmosphere increased the adsorption of only the nonpolar compound (benzene).
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References
Tarkovskaya, I.A. and Stavitskaya, S.S., Ross. Khim. Zh., 1995, vol. 39, no. 6, p. 44.
Mukhin, V.M., Tarasov, A.V., and Klushin, V.N., Aktivnye ugli Rossii (Active Carbons of Russia), Moscow: Metallurgiya, 2000.
Fenelonov, V.B., Poristyi uglerod (Porous Carbon), Novosibirsk: IK SO RAN, 1995.
Toebes, M.L., van Heeswijk, J.M.P., Bitter, J.H., et al., Carbon, 2004, vol. 42, no. 1, p. 307.
Radovic, L.R., Silva, I.F., Ume, J.I., et al., Carbon, 1997, vol. 35, no. 9, p. 1339.
Villacanas, F., Pereira, M.F.R., Orfao, J.J.M., and Figueiredo, J.L., J. Colloid Interface Sci., 2006, vol. 293, p. 128.
Chen, X., Farber, M., Gao, Y., et al., Carbon, 2003, vol. 41, p. 1489.
Leng, C.-C. and Pinto, N.G., Carbon, 1997, vol. 35, no. 9, p. 1375.
Belyaeva, O.V., Krasnova, T.A., Semenova, S.A., and Gladkova, O.S., Khim. Tverd. Topl. (Moscow), 2011, no. 6, p. 61.
Koganovskii, A.M., Klimenko, N.A., Levchenko, T.M., and Roda, I.G., Adsorbtsiya organicheskikh veshchestv iz vody (Adsorption of Organic Substances from Water), Leningrad: Khimiya, 1990.
Leon, C.A., Solar, J.M., Calemma, V., and Radovic, L.R., Carbon, 1992, vol. 30, no. 5, p. 797.
Boehm, H.P., Carbon, 2002, vol. 40, no. 1, p. 145.
Cheronis, N.D. and Ma, G.S., Mikro- i polumikrometody organicheskogo funktsional’nogo analiza (Micro and Semimicro Methods of Organic Functional Analysis), Moscow: Khimiya, 1973.
Patrakov, Yu.F. and Semenova, S.A., Solid Fuel Chem., 2004, vol. 38, no. 2, p. 62.
Hutterpain, M. and Oberlin, A., Carbon, 1990, vol. 28, no. 1, p. 103.
Pretsch, E., Buhlmann, P., and Affolter, C., Structure Determination of Organic Compounds: Tables of Spectral Data, Berlin: Springer, 2000, 3rd ed.
Yang, R.T., Adsorbents: Fundamentals and Applications, New York: Wiley Interscience, 2003, p. 87.
March, J., Advanced Organic Chemistry: Reactions, Mechanisms, and Structure, New York: Wiley, 1985, 3rd ed.
Voloshchuk, A.M. and Petukhova, G.A., Adsorbtsiya, adsorbenty i adsorbtsionnye protsessy v nanoporistykh materialakh (Adsorption, Adsorbents, and Adsorption Processes in Nanoporous Materials), Moscow: Granitsa, 2011, p. 161.
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Original Russian Text © O.V. Belyaeva, T.A. Krasnova, O.S. Gladkova, 2015, published in Khimiya Tverdogo Topliva, 2015, No. 3, pp. 68–72.
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Belyaeva, O.V., Krasnova, T.A. & Gladkova, O.S. Effect of the thermal treatment conditions of granulated active carbons on their properties. Solid Fuel Chem. 49, 196–200 (2015). https://doi.org/10.3103/S0361521915030040
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DOI: https://doi.org/10.3103/S0361521915030040