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Ion-exchange iron sorption by carbon nanotubes and nanofibers

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Inorganic Materials Aims and scope

Abstract

We have studied room-temperature equilibrium in systems containing an aqueous Fe(II) or Fe(III) salt solution and carbon nanofibers or carbon nanotubes with various contents of functional groups. The sorption capacity of the sorbents has been determined as a function of contact time, sorbent weight to solution volume ratio, salt concentrations in solution, solution pH, and sorbent “solubility” (degree of functionalization). Equilibrium data have been described by the Langmuir and Freundlich equations, and the sorption kinetics have been represented by a first-order or pseudo-second-order equation. We have demonstrated that the sorption process can be accelerated by physical activation of the system.

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Authors and Affiliations

  1. Mendeleev University of Chemical Technology, Miusskaya pl. 9, Moscow, 125047, Russia

    Son Tung Luu, Hoo Van Nguyen & E. G. Rakov

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  1. Son Tung Luu
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  2. Hoo Van Nguyen
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  3. E. G. Rakov
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Correspondence to E. G. Rakov.

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Original Russian Text © Son Tung Luu, Hoo Van Nguyen, E.G. Rakov, 2014, published in Neorganicheskie Materialy, 2014, Vol. 50, No. 10, pp. 1074–1079.

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Luu, S.T., Van Nguyen, H. & Rakov, E.G. Ion-exchange iron sorption by carbon nanotubes and nanofibers. Inorg Mater 50, 992–996 (2014). https://doi.org/10.1134/S0020168514100161

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  • DOI: https://doi.org/10.1134/S0020168514100161

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