Al<sub>2</sub>O<sub>3</sub>-containing silver phosphate glasses as hosting matrices for radioactive iodine

Yang, Joon-Eon; Park, Hwan-Seo; Cho, Yung-Zun

doi:10.1080/00223131.2017.1365025

Cited by 21 publications

(12 citation statements)

References 32 publications

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“…16 The obtained glass waste form exhibited good aqueous stability (∼10 −3 g•m −2 •day −1 ). Yang et al 17 reported that iodine was immobilized by phosphate glass, and the leaching rate of immobilized iodine was low (∼10 −4 g•m −2 •day −1 ). These works demonstrated that glass was a good matrix for the immobilization of iodine.…”

Section: Introductionmentioning

confidence: 99%

High Retention Immobilization of Iodine in B–Bi–Zn Oxide Glass Using Bi₂O₃ as a Stabilizer under a N₂ Atmosphere

Xian

Xiao

et al. 2022

Inorg. Chem.

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The immobilization of iodine waste suffers from serious iodine loss during heat treatment. Herein, we reported on the high iodine retention immobilization of simulated radioiodinecontaminated Bi 0 −SiO 2 sorbent in B−Bi−Zn oxide glass using Bi 2 O 3 as a stabilizer under a N 2 atmosphere. The effects of the Bi 2 O 3 content and sintering atmosphere on the iodine immobilization behaviors (iodine retention ratio, phase composition, microstructure, and chemical stability) were investigated. It was found that the decomposition of BiI 3 was prevented by adding Bi 2 O 3 and sintering in a N 2 atmosphere. The iodine retention ratio in the obtained glass waste form was significantly enhanced with increasing Bi 2 O 3 content and sintering in the N 2 atmosphere due to the synergistic effect. The achieved record-high iodine retention (92.22 ± 2.6%) was much higher than that of conventional heat treatment route (18.01 ± 3.5%). The results demonstrated that iodine was effectively immobilized through the formation of stable Bi x O y I (Bi 5 O 7 I and BiOI). Furthermore, the obtained iodine waste form exhibited excellent compactness and chemical stability. Owing to its high iodine retention ratio, this route can be employed to effectively immobilize radioactive iodine.

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Section: Introductionmentioning

confidence: 99%

High Retention Immobilization of Iodine in B–Bi–Zn Oxide Glass Using Bi₂O₃ as a Stabilizer under a N₂ Atmosphere

Xian

Xiao

et al. 2022

Inorg. Chem.

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“…To develop an immobilization matrix for AgI, silver tellurite glass [7,8] and silver phosphate glass [9][10][11] have been investigated. Reportedly, the addition of Bi 2 O 3 to silver tellurite glass is effective on normalized iodine release, which satisfies US regulation (2 g/m 2 ).…”

Section: Introductionmentioning

confidence: 99%

“…It has also been reported that the addition of Al 2 O 3 to silver phosphate glass enhances the chemical stability [9]. The effects of the Al 2 O 3 on the silver phosphate glass have been further investigated in order to enhance the stability [11]. Additionally, to develop an immobilization matrix for chloride waste, tellurite glass without silver oxide has been investigated.…”

Section: Introductionmentioning

confidence: 99%

“…As mentioned above, the effects of Bi 2 O 3 on the AgI-Ag 2 O-TeO 2 glass system are still unclear [8]. Even though Al 2 O 3 has been successfully added to the AgI-Ag 2 O-P 2 O 5 glass system [11], its addition to the AgI-Ag 2 O-TeO 2 glass system has not yet been investigated. Among tellurite glass systems without silver oxide, the TeO 2 -PbO glass system, which was developed to immobilize chloride waste, shows relatively superior chemical stability as an immobilization matrix.…”

Section: Introductionmentioning

confidence: 99%

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Effects of Bi2O3, Al2O3, PbO on silver tellurite glass for radioactive iodine immobilization

Kang

Lee

Choi

et al. 2020

J Radioanal Nucl Chem

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An iodine immobilization matrix, the AgI-Ag 2 O-TeO 2 glass system, was developed. The effects of different additives, i.e., Bi 2 O 3 , Al 2 O 3 , and PbO, on performance were investigated. In an ambient atmosphere and at 800 °C, the melting of the glass precursor mixture was completed after 1.0 h, without significant loss of the constituent elements of the glass except for aluminum. The loading of iodine in the matrix was approximately 11-15% by weigh, excluding oxygen. The normalized releases of all the elements from the matrix were below the order of 10 −1 g/m 2 , which satisfies US regulation (2 g/m 2 ). Additionally, each additive had a different effect on the glass system, and their effects on element release from the matrix were clarified.

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“…In addition, these materials possess high reactivity towards specific radioactive elements without additional chelating molecules [ 15 ]. Among them, silver metal-based materials have widely been used in the desalination of radioactive iodine wastes because of the high affinity of silver towards iodine species [ 16 , 17 , 18 , 19 , 20 , 21 , 22 , 23 , 24 , 25 , 26 , 27 , 28 , 29 , 30 ]. In a typical desalination procedure, these adsorbents should immerse in contaminated water for the removal of radioactive iodine, and thus radioactive elements-containing solid wastes generated by this process need to be separated from water [ 31 ].…”

Section: Introductionmentioning

confidence: 99%

Silver Nanomaterial-Immobilized Desalination Systems for Efficient Removal of Radioactive Iodine Species in Water

et al. 2018

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Increasing concerns regarding the adverse effects of radioactive iodine waste have inspired the development of a highly efficient and sustainable desalination process for the treatment of radioactive iodine-contaminated water. Because of the high affinity of silver towards iodine species, silver nanoparticles immobilized on a cellulose acetate membrane (Ag-CAM) and biogenic silver nanoparticles containing the radiation-resistant bacterium Deinococcus radiodurans (Ag-DR) were developed and investigated for desalination performance in removing radioactive iodines from water. A simple filtration of radioactive iodine using Ag-CAM under continuous in-flow conditions (approximately 1.5 mL/s) provided an excellent removal efficiency (>99%) as well as iodide anion-selectivity. In the bioremediation study, the radioactive iodine was rapidly captured by Ag-DR in the presence of high concentration of competing anions in a short time. The results from both procedures can be visualized by using single-photon emission computed tomography (SPECT) scanning. This work presents a promising desalination method for the removal of radioactive iodine and a practical application model for remediating radioelement-contaminated waters.

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Al₂O₃-containing silver phosphate glasses as hosting matrices for radioactive iodine

Cited by 21 publications

References 32 publications

High Retention Immobilization of Iodine in B–Bi–Zn Oxide Glass Using Bi₂O₃ as a Stabilizer under a N₂ Atmosphere

High Retention Immobilization of Iodine in B–Bi–Zn Oxide Glass Using Bi₂O₃ as a Stabilizer under a N₂ Atmosphere

Effects of Bi2O3, Al2O3, PbO on silver tellurite glass for radioactive iodine immobilization

Silver Nanomaterial-Immobilized Desalination Systems for Efficient Removal of Radioactive Iodine Species in Water

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Al2O3-containing silver phosphate glasses as hosting matrices for radioactive iodine

Cited by 21 publications

References 32 publications

High Retention Immobilization of Iodine in B–Bi–Zn Oxide Glass Using Bi2O3 as a Stabilizer under a N2 Atmosphere

High Retention Immobilization of Iodine in B–Bi–Zn Oxide Glass Using Bi2O3 as a Stabilizer under a N2 Atmosphere

Effects of Bi2O3, Al2O3, PbO on silver tellurite glass for radioactive iodine immobilization

Silver Nanomaterial-Immobilized Desalination Systems for Efficient Removal of Radioactive Iodine Species in Water

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Al₂O₃-containing silver phosphate glasses as hosting matrices for radioactive iodine

High Retention Immobilization of Iodine in B–Bi–Zn Oxide Glass Using Bi₂O₃ as a Stabilizer under a N₂ Atmosphere

High Retention Immobilization of Iodine in B–Bi–Zn Oxide Glass Using Bi₂O₃ as a Stabilizer under a N₂ Atmosphere