A novel composite ion exchange adsorbent has been synthesized
and
characterized by using sophisticated techniques. The physicochemical
parameters were also established to determine preliminary ion uptake
properties of the exchanger. The material synthesized at pH 0.7, demonstrates
promising ion exchange capacity (1.56 meq g–1 for
Ba2+) together with chemical and thermal stability. It
retains 76.4% ion exchange capacity up to 500 °C and shows higher
uptake capacity than stannic selenite, stannic tungestoaresenate,
and stannic molybdoaresenate. X-ray and SEM analyses show the amorphous
nature of the material. On the basis of chemical composition and FTIR
analysis a tentative formula has been assigned as (SnO2)(HMoO4)2(CH2CHCONH2)
nH2O. The distribution coefficients behavior of material
toward diverse metal ions was studied by varying the concentration
of acid solvents. The practical usefulness of the material has been
demonstrated by separating Cd2+ ions quantitatively from
a synthetic mixture.
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