Efficient removal of iodide/iodate from aqueous solutions by Purolite A530E resin

Efficient removal of iodide (I − ) and iodate (IO 3 − ) from aqueous solution is highly desirable for waste disposal and remediation of radioiodine contamination. We report here a bifunctional anion exchange resin Purolite A530E for the effective I − /IO 3 − adsorption, which shows a priority anion-exchange affinity for I − (99%) over IO 3 − (9.7%). The maximum adsorption capacity for I − is 275.16 mg·g −1 fitted by the Langmuir isotherm model, much higher than most adsorbents. Furthermore, Purolite A530E exhibits great selectivity for I − over competing anions, which endows the resin with promising I − remediation that over 99% I − can be removed from simulated Hanford groundwater (HGW).