Abstract
In order to remove various radionuclides (Tl+, Sr2+and La3+) from wastewaters we used three solid supports of (styrenedivinylbenzene)
grafted with different pendant groups (1-triphenylphosphonium; 2-izo-propylphosphonate; 3-
aminoethylaminomethyl). The solid supports with different pendant groups were impregnated with ionic liquid (Cyphos IL-101-
trihexyltetradecylphosphonium chloride). IR-spectra, EDX-ray and SEM image were used to characterize the adsorbent obtained
after the impregnation of the studied solid support with Cyphos IL-101. The analysis used for the characterization of the samples
proved the fact that the studied solid supports were impregnated with the ionic liquid, underling the increasing of the
phosphorous and chlorine ions content. The styrene-divinylbenzene grafted with 3-aminoethylaminomethyl groups and
impregnated with Cyphos IL-101 developed the highest adsorption capacity in the removal process of the studied radionuclides
from aqueous solutions, due to the synergic effect obtained from the two ions of the adsorbent (amino groups from the solid
support and phosphorous ions from the impregnated ionic liquid).