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Abstract: The present study describes a simple and facile precipitation polymerization technique. For the synthesis of Cd2+ion-imprinted polymer for the selective detoxification of toxic Cd2+ ions from the aqueous samples. The resultant Cd2+-imprinted polymer was characterized by the EDX, SEM, and FTIR. Different parameters were optimized during the adsorption study to achieve the maximum adsorption capability i.e. pH, equilibrium time, temperature shaking speed, and adsorbent dose. The maximum adsorption capacity of Cd2+ion-imprinted polymer was 62.9 mg. g-1at pH 6. The kinetic study was best defined by pseudo-second-order, while the Langmuir isotherm model well fitted to present data. Good linearity was achieved in (10-100 μg. L-1) concentration range with LOD 0.88 μg. L-1 and LOQ 2.95 μg. L-1. The relative selective factor (K') of Cd2+-ion and interfering ions was greater than 1 due to the imprinting effect. The developed method was validated by the spiking addition method and obtained good results in accordance with spiking values in real samples. The synthesized ion-imprinted polymer shown higher adsorption capacity than previously reported methods for the selective removal of Cd2+-ions from aqueous samples
Template and target information: cadmium ion, Cd(II)
Author keywords: Ion imprinted polymers, solid phase extraction, Atomic absorption spectroscopy, selectivity, aqueous samples