A study of the sorption properties of iron-containing sorbent nanoparticles with respect to heavy metal ions

Abstract

The sorption properties of the synthesized iron-containing sorbent based on goethite—hydrated iron(III) oxide α-FeOOH—with nanoscale particles with respect to Pb(II) and Cd(II) heavy metal ions have been studied. It has been found that the sorption of the studied metal ions on the sorbent sample surface is described by the Langmuir model. An optimization of sorption conditions has made it possible to achieve a high sorption activity of the synthesized nanosized goethite with respect to the above ions at a recovery ratio of 78 and 96% for Cd(II) and Pb(II) ions, respectively. It has been revealed that the synthesized nanosized goethite exhibits higher sorption capacity than that of other sorbents reported in the literature.