Synthesis of glass composite material with bismuthate glass powder and zeolite-4A for immobilization of iodine waste

Liu, Yi; Feng, Yaxin; Wei, Guilin; Sun, Runjie; Lu, Xirui; Chen, Yan; Peng, Lin; Ma, Min; Zhang, Zhentao

doi:10.1016/j.jssc.2020.121856

Cited by 13 publications

(4 citation statements)

References 29 publications

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“…As shown in Table S2, the leaching rate of I in this work was higher than that of the AgI immobilized in Bi–P–Zn glass, Boron glass, B–Bi–Zn–Si glass and W(Mo or V)–Ag–Te glass, which may be attributed to the fact that AgI was more stable than Bi x O y I. However, it was comparable with the immobilization of Bi x O y I in B–Bi–Zn glass and iodate in glass–zeolite–4A and lower than that of the immobilization of iodate in Pb–B–Zn glass and Cs 3 Bi 2 I 9 in perovskite–silica . The results indicated that the iodine waste (Bi x O y I) immobilized in B–Bi–Zn oxide glass exhibited good chemical stability.…”

Section: Resultsmentioning

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: Resultsmentioning

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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“…More recently, a GCM was produced with the aim of creating iodosodalite phases (Liu et al, 2021). Here, 5-25 mass% of a Bi 2 O 3 glass powder was mixed with zeolite-4A and NaI and sintered at 500-1100 °C.…”

Section: Glass Composite Materialsmentioning

confidence: 99%

“…Iodosodalite [e.g., Na 8 (AlSiO 4 ) 6 I 2 ] is a highly durable wasteform attracting a significant amount of continued interest. In particular, recent developments include further details on the use of glass binders to enable densification at 750 °C (Chong et al, 2020(Chong et al, , 2018, the use of cold sintering to potentially eliminate the need to use glass binders (Hassan et al, 2020), the use of sol-gel methods (Kroll et al, 2020), the immobilization of AgI (Kuo et al, 2018;Maddrell, 2019), the interzeolite conversion to sodalite (Liu et al, 2021(Liu et al, , 2020An et al, 2020), and the direct conversion of waste streams into sodalite (Neeway et al, 2016;Bollinger et al, 2022).…”

Section: Sodalitementioning

confidence: 99%

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Review of recent developments in iodine wasteform production

et al. 2022

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Radioiodine capture and immobilization is not only important to consider during the operation of reactors (i.e., I-131), during nuclear accidents (i.e., I-131 and I-129) or nuclear fuel reprocessing (i.e., I-131 and I-129), but also during disposal of nuclear wastes (i.e., I-129). Most disposal plans for I-129-containing waste forms (including spent nuclear fuel) propose to store them in underground repositories. Here, iodine can be highly mobile and, given its radiotoxicity, needs to be carefully managed to minimize long-term environmental impacts arising from disposal. Typically, any process that has been used to capture iodine from reprocessing or in a reactor is not suitable for direct disposal, rather conversion into a wasteform for disposal is required. The objectives of these materials are to use either chemical immobilization or physical encapsulation to reduce the leaching of iodine by groundwaters. Some of the more recent ideas have been to design capture materials that better align with disposal concepts, making the industrial processing requirements easier. Research on iodine capture materials and wasteforms has been extensive. This review will act as both an update on the state of the research since the last time it was comprehensively summarized, and an evaluation of the industrial techniques required to create the proposed iodine wasteforms in terms of resulting material chemistry and applicability.

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Synthesis and characterization of pollucite: a low-temperature immobilization method for 137Cs

Feng

Wei

Liu

et al. 2023

J Radioanal Nucl Chem

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Synthesis of glass composite material with bismuthate glass powder and zeolite-4A for immobilization of iodine waste

Cited by 13 publications

References 29 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

Review of recent developments in iodine wasteform production

Synthesis and characterization of pollucite: a low-temperature immobilization method for 137Cs

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Synthesis of glass composite material with bismuthate glass powder and zeolite-4A for immobilization of iodine waste

Cited by 13 publications

References 29 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

Review of recent developments in iodine wasteform production

Synthesis and characterization of pollucite: a low-temperature immobilization method for 137Cs

Contact Info

Product

Resources

About

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