Novel synthesis of bismuth-based adsorbents for the removal of 129I in off-gas

Yang, Joon-Eon; Shin, Jin Myeong; Park, Jang Jin; Park, Geun Il; Yim, Man‐Sung

doi:10.1016/j.jnucmat.2014.09.057

Cited by 76 publications

(44 citation statements)

References 24 publications

(37 reference statements)

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“…Additional metals such as Bi and Ge were going to be included in this study, but they could not be found commercially available in the same size and shape (e.g., 0.5 mm diameter wire) as the other compounds. Both of these materials, whether in pure form or present in porous compounds, have been demonstrated to show an affinity for I 2(g) . ,,, …”

Section: Discussionmentioning

confidence: 99%

“…Both of these materials, whether in pure form or present in porous compounds, have been demonstrated to show an affinity for I 2(g) . 14,23,31,32 The target compounds for the selected metals implemented in this study included AlI 3 for aluminum, AgI for silver, CuI for copper, InI 3 for indium, MoI 2 or MoI 3 for molybdenum, NbI 5 for niobium, NiI 2 for nickel, PdI 2 for palladium, PtI 2 or PtI 4 for platinum, SnI 2 or SnI 4 for tin, and TaI 5 for tantalum. This provides a range of chemisorption oxidation states, including +1 (i.e., Ag + , Cu + ), +2 (Mo 2+ , Ni 2+ , Pd 2+ , Pt 2+ , Sn 2+ ), +3 (Al 3+ , In 3+ , Mo 3+ ), +4 (Pt 4+ , Sn 4+ ), and +5 (Nb 5+ , Ta 5+ ) to evaluate the different potential yields (see Figure 7a).…”

Section: Discussionmentioning

confidence: 99%

“…Regarding getter metals, several have shown promise for chemisorption processes, including Ag, ,− Bi, ,− Cu, Sb, and Sn. − This paper summarizes a preliminary evaluation of 11 different getter metals in the form of metallic wires at three different temperatures of 100, 123, and 139 °C. Metallic substrates were chosen here to eliminate the artifacts introduced using different methods to incorporate equal amounts of each metal into a porous scaffold.…”

Section: Introductionmentioning

confidence: 99%

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Iodine Vapor Reactions with Pure Metal Wires at Temperatures of 100–139 °C in Air

Riley

Chong

Beck

2021

Ind. Eng. Chem. Res.

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± 5 °C) with exposure times of 24 h at each temperature. Over these temperatures, some of the metals showed increased mass gain with higher temperatures (i.e., In, Ag, Cu), Sn showed decreased iodine capture at increased temperatures, and most metals (i.e., Mo, Nb, Ni, Pd, Pt, and Ta) showed little to no mass gain at all temperatures. Silver mordenite (AgZ) was used as a standard during these studies and showed a consistent mass gain (m % I ) of 10.6 → 12.8% over this temperature range. The values of the mass of iodine captured per mass of starting metal (g g −1 ) ranged widely across the study, with the highest values achieved for (in descending order) Sn-T 100 °C (4.37), In-T 139 °C (3.34), Sn-T 123 °C (1.98), In-T 123 °C (1.57), Ag-T 139 °C(1.19), In-T 100 °C (0.97), and Cu-T 139 °C (0.71). In some cases, the metal-iodide complex was not stable at the experimental temperature, and it was clear some volatility had occurred during the experiment based on discoloration in the vials. These results show that some metals can have extensive reactions with I 2(g) without showing metal-iodide preferences over metal-oxide formation based on thermodynamic predictions. It is possible that materials such as these could be implemented near nuclear facilities to getter I 2(g) in the event of a nuclear accident.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Iodine Vapor Reactions with Pure Metal Wires at Temperatures of 100–139 °C in Air

Riley

Chong

Beck

2021

Ind. Eng. Chem. Res.

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“…Finally, the authors highlighted the low cost of bismuth and the easy preparation of SBA-15 as definite advantages for industrial applications. Another study led by Yang et al 193 on bismuth-based adsorbents (bismuth oxide) demonstrated an iodine trapping capacity that was approximately 1.9 times higher (0.468 g I 2 kg adsorbent −1 ) than that of commercial AgX zeolite.…”

Section: Capture Of Radioactive Iodine Contaminants By Solid Porous S...mentioning

confidence: 99%

Porous sorbents for the capture of radioactive iodine compounds: a review

et al. 2018

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“…A large inventory of solid sorbents such as mordenite (AgZ) or faujasite (AgX), 2 chalcogen-based aerogels, 3–5 metal–organic frameworks, 6,7 granular activated carbon, 8 graphene powders/aerogels, 9 copper metal, 10 bi-compounds, 11 Ag 0 -functionalized silica aerogels, 12,13 Ag-impregnated Al 2 O 3 , 14 and Ag-impregnated SiO 2 ( ref. 15 ) have been investigated as getters for I 2(g) , including porous materials functionalized with different metals: Ag, Bi, Cd, Cu, Hg, Mn, Pb, Pd, Sb, Sn, and Tl.…”

Section: Introductionmentioning

confidence: 99%