Organic-inorganic ion-exchangers for removal of toxic impuriries from aquaos solutions
Keywords:
cation-exchange resin, zirconium hydrophosphate, composite, nanoparticles, aggregates of nanoparticles.Abstract
Organic-inorganic ion-exchangers have been synthesized by modification of strongly acidic gel
resin with zirconium hydrophosphate. The obtained materials have been investigated using scanning and
transmission microscopy, the method of standard contact porometry was used to research porous structure of
the inorganic constituent. The inorganic ion-exchanger incorporated into the polymer matrix was shown to be
in a form of nanoparticle aggregates. A size of these formations is from 50 nm up to several microns. A
change of porous structure of the polymer influenced by inorganic constituent has been analyzed.
Investigation of Cd2+ ion removal from individual and combined solutions under static and dynamic
conditions has shown selectivity of the composites. This property improves with increase of content of the
inorganic constituent in the ion-exchangers
