Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
11015730 | Materials Letters | 2019 | 12 Pages |
Abstract
Pristine electric arc furnace slag (EAFS) as well as EAFS modified by alkali activation i.e. alkali activated slag (AAS) have found a novel application as adsorbents used in Cu2+ removal from sulfate solutions. The adsorption tests were carried in batch conditions and results have shown that alkali activation of EAFS enhances the Cu2+ adsorption. The adsorption process was found to follow a pseudo second-order kinetic model and occurs via formation of posnjakite (Cu4(SO4)(OH)6·H2O) on the surface of both, EAFS and AAS. Enhanced adsorption properties of AAS, compared to EAFS, are attributed to a more porous structure, larger specific surface area and an increased number of surface groups involved in the binding of Cu2+.
Related Topics
Physical Sciences and Engineering
Materials Science
Nanotechnology
Authors
Irena NikoliÄ, Smilja MarkoviÄ, Ljiljana VeselinoviÄ, Vuk V. RadmiloviÄ, Ivona JankoviÄ-Äastvan, Velimir R. RadmiloviÄ,