1. Efficient removal of iodide/iodate from aqueous solutions by Purolite A530E resin.
- Author
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Zhao, Yuting, Li, Jie, Chen, Long, Guo, Qi, Li, Lingyi, Chai, Zhifang, and Wang, Shuao
- Subjects
AQUEOUS solutions ,ION exchange resins ,LANGMUIR isotherms ,IODIDES ,ADSORPTION capacity ,SORBENTS ,ADSORPTION isotherms - Abstract
Efficient removal of iodide (I
− ) and iodate (IO3 − ) 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− /IO3 − adsorption, which shows a priority anion-exchange affinity for I− (99%) over IO3 − (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). [ABSTRACT FROM AUTHOR]- Published
- 2023
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