The effective extraction and regeneration of radioactive iodide remains an urgent concern for safe nuclear energy utilization. Herein, we developed a novel electrochemically triggered iodide-vacancy BiOI film, which exhibited excellent I- ion extraction capacity of 328.3 mg.g(-1). Especially, due to the ion vacancy trap effect, the film showed high selectivity towards I- ions in the existence of a large number of competitive anions. Additionally, the electrochemically switched ion extraction (ESIE) process with this iodide-vacancy BiOI film possessed fast extraction kinetics and high stability. More importantly, the trapped I(- )ions were easily desorbed from the film without the secondary pollution during the ESIE process and meanwhile, the iodide-vacancy BiOI film was able to be completely regenerated. It is expected that such an iodide-vacancy BiO film with ESIE could become a promising process for the selective extraction of I- ions from the radioactive water.

Luo J., Du X., Gao F., Ma P., Hao X., Guan G., et al. (2021). Electrochemically triggered iodide-vacancy BiOI film for selective extraction of iodide ion from aqueous solutions. SEPARATION AND PURIFICATION TECHNOLOGY, 259 [10.1016/j.seppur.2020.118120].

Electrochemically triggered iodide-vacancy BiOI film for selective extraction of iodide ion from aqueous solutions

Ma P.;Scialdone O.;
2021-03-15

Abstract

The effective extraction and regeneration of radioactive iodide remains an urgent concern for safe nuclear energy utilization. Herein, we developed a novel electrochemically triggered iodide-vacancy BiOI film, which exhibited excellent I- ion extraction capacity of 328.3 mg.g(-1). Especially, due to the ion vacancy trap effect, the film showed high selectivity towards I- ions in the existence of a large number of competitive anions. Additionally, the electrochemically switched ion extraction (ESIE) process with this iodide-vacancy BiOI film possessed fast extraction kinetics and high stability. More importantly, the trapped I(- )ions were easily desorbed from the film without the secondary pollution during the ESIE process and meanwhile, the iodide-vacancy BiOI film was able to be completely regenerated. It is expected that such an iodide-vacancy BiO film with ESIE could become a promising process for the selective extraction of I- ions from the radioactive water.
15-mar-2021
Settore ING-IND/27 - Chimica Industriale E Tecnologica
Luo J., Du X., Gao F., Ma P., Hao X., Guan G., et al. (2021). Electrochemically triggered iodide-vacancy BiOI film for selective extraction of iodide ion from aqueous solutions. SEPARATION AND PURIFICATION TECHNOLOGY, 259 [10.1016/j.seppur.2020.118120].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10447/584021
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