Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
584304 | Journal of Hazardous Materials | 2007 | 7 Pages |
Abstract
Recently, iron nanoparticles are increasingly being tested as adsorbents for various types of organic and inorganic pollutants. In this study, nanoparticles of zero-valent iron (NZVI) synthesized under atmospheric conditions were employed for the removal of Ba2+ ions in a concentration range 10â3 to 10â6Â M. Throughout the study, 133Ba was used as a tracer to study the effects of time, concentration, and temperature. The obtained data was analyzed using various kinetic models and adsorption isotherms. Pseudo-second-order kinetics and Dubinin-Radushkevich isotherm model provided the best correlation with the obtained data. Observed thermodynamic parameters showed that the process is exothermic and hence enthalpy-driven.
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Authors
O. Ãelebi, Ã. Ãzüm, T. Shahwan, H.N. Erten,