Effect of Temperature on the Kinetics of Sorption of Co2+ and Ni2+ Ions by a Sorbent Based on an Inositol Hexaphosphoric Acid Derivative
- Authors: Yarusova S.B.1,2, Makarenko N.V.1, Gordienko P.S.1, Karpenko M.A.1, Novikova E.S.2
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Affiliations:
- Institute of Chemistry
- Vladivostok State University of Economics and Service
- Issue: Vol 92, No 3 (2018)
- Pages: 559-564
- Section: Physical Chemistry of Surface Phenomena
- URL: https://bakhtiniada.ru/0036-0244/article/view/169939
- DOI: https://doi.org/10.1134/S0036024418030354
- ID: 169939
Cite item
Abstract
Data on the effect temperature has on the kinetics of the removal of Co2+ and Ni2+ ions under static conditions by a sorbent based on a derivative of phytic acid fabricated from rice production waste are presented. It is shown that when the temperature is raised from 20 to 60°C, the sorption capacity of the sorbent based on phytic acid increases over the period of sorption and within 180 min reaches values of 1.4 mmol g−1 for Co2+ ions and 1.3 mmol g−1 for Ni2+ ions. It is established that for the investigated range of temperatures, order n of the sorption of Co2+ and Ni2+ ions is <1, which characterizes the reactions accompanied by diffusion processes. It is found that the process of removal of Co2+ and Ni2+ ions is characterized with low activation energy (20.74 kJ mol−1 for Co2+ ions and 14.2 kJ mol−1 for Ni2+ ions). It is also demonstrated that the sorption process in the considered time frame is best described by a kinetic model of a pseudo-second order, as is indicated by respective correlation coefficients.
About the authors
S. B. Yarusova
Institute of Chemistry; Vladivostok State University of Economics and Service
Author for correspondence.
Email: yarusova_10@mail.ru
Russian Federation, Vladivostok, 690022; Vladivostok, 690014
N. V. Makarenko
Institute of Chemistry
Email: yarusova_10@mail.ru
Russian Federation, Vladivostok, 690022
P. S. Gordienko
Institute of Chemistry
Email: yarusova_10@mail.ru
Russian Federation, Vladivostok, 690022
M. A. Karpenko
Institute of Chemistry
Email: yarusova_10@mail.ru
Russian Federation, Vladivostok, 690022
E. S. Novikova
Vladivostok State University of Economics and Service
Email: yarusova_10@mail.ru
Russian Federation, Vladivostok, 690014
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