Abstract
The sorption capacity of activated carbon with respect to Cu2+ cations was found to be enhanced considerably upon its chemical modification with fullerenes and during its electron-beam processing. It was discovered that introducing fullerenes (20 μg/g) into activated carbon leads to a change in the chemical composition of its surface, due to changes in the system of conjugated bonds in activated carbon leading to an increase in the content of Brønsted acid (pK a 0–5) and weakly base (pK a 8–11) sites capable of cation exchange on the material surface. We conclude that electron-beam processing (optimal dose, 25–50 kGy) facilitates the rearrangement of bonds on the surface of activated carbon, thereby increasing the number of Lewis base and Brønsted acid sites capable of adsorbing metal ions in accordance with the donor-acceptor and cation-exchange mechanism, respectively.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
H. Kienle and E. Bäder, Active Coals and Their Industrial Application (Enke Verlag, Stuttgart 1980; Khimiya, Leningrad, 1984).
A. D. Smirnov, Sorption in Purification of Water (Khimiya, Leningrad, 1982) [in Russian].
Yu. V. Pokonova, A. I. Grabovskii, and M. S. Oleinik, Perspekt. Mater., No. 1, 84–90 (1998).
A. I. Loskutov and I. S. Sasichenkov, Zh. Prikl. Khim. 71, 1997 (1998).
A. D. Semenov, N. N. Smirnov, S. P. Kochetkov, and A. P. Il’in, Izv. Vyssh. Uchebn. Zaved., Khim. Khim. Tekhnol. 51(7), 69 (2008).
P. A. Rebinder, Selected Works. Surface Phenomena in Dispersed Systems (Nauka, Moscow, 1978) [in Russian].
Physico-Chemical Studies and Structure of Natural Sorbents, Ed. by F. Ya. Slisarenko (Saratov, 1971) [in Russian].
M. M. Dubinin, Natural Mineral Sorbents (Nauka, Moscow, 1988) [in Russian].
A. Coz, A. Andres, S. Soriano, et al., J. Hazard Mater. 164, 755 (2009).
V. I. Berezkin, V. V. Samonin, I. V. Viktorovskii, et al., Zh. Fiz. Khim. 80, 2226 (2006) [Russ. J. Phys. Chem. A 80, 1986 (2006)].
M. E. Shpilevskii, E. M. Shpilevskii, and V. F. Stel’makh, J. Eng. Phys. Thermophys. 74, 1499 (2001).
C. Chakravarty, J. Phys. Chem. B 101, 1878 (1997).
D. A. Bochvar and E. G. Gal’perin, Dokl. Akad. Nauk SSSR 209, 610 (1973).
A. G. Kotov and V. V. Gromov, Radiation Physics and Chemistry of Heterogeneous Systems (Energoatomizdat, Moscow, 1988) [in Russian].
I. V. Vasil’eva, S. V. Myakin, E. V. Rylova, and V. G. Korsakov, Zh. Fiz. Khim. 76, 84 (2002) [Russ. J. Phys. Chem. A 76, 71 (2002)].
S. V. Myakin, M. M. Sychev, I. V. Vasil’eva, et al., Electronic Beam Modification of Functional Materials (Peterb. Gos. Univ. Putei Soobshch., St. Petersburg, 2006) [in Russian].
L. N. Vorozhbitova, G. K. Ivakhnyuk, S. D. Kolosentsev, and A. G. Cherepov, Chromatographic Methods of Study of Properties of High-Dispersive Porous Bodies, Practical Guide (Len. Tekh. Inst., Leningrad, 1991) [in Russian].
G. I. Boikova and M. Ya. Pulerevich, Measurement of Sorption Isotherms of Organic Substances Vapors on Different Adsorbents in Dynamic Conditions, Methodic Guide (Len. Tekh. Inst., Leningrad, 1983) [in Russian].
Author information
Authors and Affiliations
Corresponding author
Additional information
Original Russian Text © S.V. Myakin, V.Yu. Nikonova, V.G. Korsakov, V.V. Samonin, 2011, published in Zhurnal Fizicheskoi Khimii, 2011, Vol. 85, No. 9, pp. 1742–1748.
Rights and permissions
About this article
Cite this article
Myakin, S.V., Nikonova, V.Y., Korsakov, V.G. et al. Increasing the sorption activity of carbon adsorbents by electron-beam processing and fullerene microadditives. Russ. J. Phys. Chem. 85, 1622–1628 (2011). https://doi.org/10.1134/S0036024411090160
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1134/S0036024411090160