Binary adsorption of nickel and zinc from aqueous solutions onto the Serbian natural clinoptilolite
Abstract
Sorption of the Zn2+ and Ni2+ ions by the Na+-enriched natural clinoptilolite (Na-CLI) from aqueous solutions containing both Zn2+ and Ni2+ ions at a range of concentrations has been studied at 298, 308, and 318K. It was found that the sorption of a particular ion by Na-CLI increases with the increase in the initial concentration of the solution of that ion. At a given initial concentration, the sorption degree increases with temperature. Also, the sorption of a particular ion is greater when the initial solution contains a second ion than it is when the particular ion is present alone. The sorption kinetics is in accord with the pseudo-second-order reaction rate model. The values of the k(2) rate constant do not show a regular change with the initial Zn2+/Ni2+ concentrations probably because the presence of the second ion has a significant effect on the reaction rate. Thermodynamic study has shown that the sorption is exothermic, occurring spontaneously in the 298-318K range and with ...a positive entropy change.
Keywords:
Adsorption / Clinoptilolite / Binary / Heavy metal / Kinetics / ZeoliteSource:
Desalination and Water Treatment, 2016, 57, 40, 18748-18754Publisher:
- Taylor & Francis Inc, Philadelphia
Funding / projects:
DOI: 10.1080/19443994.2015.1094426
ISSN: 1944-3994
WoS: 000378816800017
Scopus: 2-s2.0-84945241763
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Institution/Community
Tehnološko-metalurški fakultetTY - JOUR AU - Stojaković, Đorđe AU - Dikić, Jelena AU - Stupar, Stevan AU - Veličković, Zlate AU - Rajić, Nevenka PY - 2016 UR - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/3278 AB - Sorption of the Zn2+ and Ni2+ ions by the Na+-enriched natural clinoptilolite (Na-CLI) from aqueous solutions containing both Zn2+ and Ni2+ ions at a range of concentrations has been studied at 298, 308, and 318K. It was found that the sorption of a particular ion by Na-CLI increases with the increase in the initial concentration of the solution of that ion. At a given initial concentration, the sorption degree increases with temperature. Also, the sorption of a particular ion is greater when the initial solution contains a second ion than it is when the particular ion is present alone. The sorption kinetics is in accord with the pseudo-second-order reaction rate model. The values of the k(2) rate constant do not show a regular change with the initial Zn2+/Ni2+ concentrations probably because the presence of the second ion has a significant effect on the reaction rate. Thermodynamic study has shown that the sorption is exothermic, occurring spontaneously in the 298-318K range and with a positive entropy change. PB - Taylor & Francis Inc, Philadelphia T2 - Desalination and Water Treatment T1 - Binary adsorption of nickel and zinc from aqueous solutions onto the Serbian natural clinoptilolite EP - 18754 IS - 40 SP - 18748 VL - 57 DO - 10.1080/19443994.2015.1094426 ER -
@article{ author = "Stojaković, Đorđe and Dikić, Jelena and Stupar, Stevan and Veličković, Zlate and Rajić, Nevenka", year = "2016", abstract = "Sorption of the Zn2+ and Ni2+ ions by the Na+-enriched natural clinoptilolite (Na-CLI) from aqueous solutions containing both Zn2+ and Ni2+ ions at a range of concentrations has been studied at 298, 308, and 318K. It was found that the sorption of a particular ion by Na-CLI increases with the increase in the initial concentration of the solution of that ion. At a given initial concentration, the sorption degree increases with temperature. Also, the sorption of a particular ion is greater when the initial solution contains a second ion than it is when the particular ion is present alone. The sorption kinetics is in accord with the pseudo-second-order reaction rate model. The values of the k(2) rate constant do not show a regular change with the initial Zn2+/Ni2+ concentrations probably because the presence of the second ion has a significant effect on the reaction rate. Thermodynamic study has shown that the sorption is exothermic, occurring spontaneously in the 298-318K range and with a positive entropy change.", publisher = "Taylor & Francis Inc, Philadelphia", journal = "Desalination and Water Treatment", title = "Binary adsorption of nickel and zinc from aqueous solutions onto the Serbian natural clinoptilolite", pages = "18754-18748", number = "40", volume = "57", doi = "10.1080/19443994.2015.1094426" }
Stojaković, Đ., Dikić, J., Stupar, S., Veličković, Z.,& Rajić, N.. (2016). Binary adsorption of nickel and zinc from aqueous solutions onto the Serbian natural clinoptilolite. in Desalination and Water Treatment Taylor & Francis Inc, Philadelphia., 57(40), 18748-18754. https://doi.org/10.1080/19443994.2015.1094426
Stojaković Đ, Dikić J, Stupar S, Veličković Z, Rajić N. Binary adsorption of nickel and zinc from aqueous solutions onto the Serbian natural clinoptilolite. in Desalination and Water Treatment. 2016;57(40):18748-18754. doi:10.1080/19443994.2015.1094426 .
Stojaković, Đorđe, Dikić, Jelena, Stupar, Stevan, Veličković, Zlate, Rajić, Nevenka, "Binary adsorption of nickel and zinc from aqueous solutions onto the Serbian natural clinoptilolite" in Desalination and Water Treatment, 57, no. 40 (2016):18748-18754, https://doi.org/10.1080/19443994.2015.1094426 . .