Removal of Radioactive Iodine Using Silver/Iron Oxide Composite Nanoadsorbents

Zia, Mah Rukh; Raza, Muhammad Asim; Park, Sang Hyun; Irfan, Naseem; Ahmed, Rizwan; Park, Jung Eun; Jeon, Jongho; Mushtaq, Sajid

doi:10.3390/nano11030588

Cited by 25 publications

(13 citation statements)

References 45 publications

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“…Zia et al used a Ag/Fe 3 O 4 nanocomposite which displayed an adsorption capacity of 847 mg/g for I 2 removal from aqueous media. This material exhibited high I – selectivity in the presence of competitive ions (Cl – , Br – , and PO 4 – ), good recyclability, and a removal efficiency of approximately 94% after 7 cycles . Rosenberg et al reported the removal of 131 I from soil by chemical treatment in the presence and absence of I – carrier, H 2 O 2 , and AgNO 3 .…”

Section: Removal Of Radioactive Iodidementioning

confidence: 99%

Recent Advances in the Removal of Radioactive Iodine and Iodide from the Environment

et al. 2023

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Iodine (I 2 ) in the form of iodide ions (I − ) is an essential chemical element in the human body. Iodine is a nonmetal that belongs to the VIIA group (halogens) in the periodic table. Over the last couple of centuries, the exponential growth of human society triggered by industrialization coincided with the use of iodine in a wide variety of applications, including chemical and biological processes. However, through these processes, the excess amount of iodine eventually ends up contaminating soil, underground water, and freshwater sources, which results in adverse effects. It enters the food chain and interferes with biological processes with serious physiological consequences in all living organisms, including humans. Existing removal techniques utilize different materials such as metal−organic frameworks, layered double hydroxides, ion-exchange resins, silver, polymers, bismuth, carbon, soil, MXenes, and magnetic-based materials. From our literature survey, it was clear that absorption techniques are the most frequently experimented with. In this Review, we have summarized current advancements in the removal of iodine and iodide from human-made contaminated aqueous waste.

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Section: Removal Of Radioactive Iodidementioning

confidence: 99%

Recent Advances in the Removal of Radioactive Iodine and Iodide from the Environment

et al. 2023

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“…Liquid phase capture of iodine (as iodide or iodate) is less mature than vapor phase capture, but foundational knowledge is present. ,, The iodide or iodate can be removed through ion exchange, sorption, or precipitation as a low solubility phase (e.g., AgI, K sp = 8 × 10 –17 ). Materials demonstrated for iodine removal include MOF, Ag-based materials, ,− Bi-based materials, − resins (for iodide), − resins (for iodate), , membranes, and layered hydroxides. , However, in nearly all cases, only a single iodine species was the removal target, however, in practicality, these two species commonly coexist with one another. As both I – and IO 3 – are generated in CS, the removal of both must be considered in any such treatment process.…”

Section: Introductionmentioning

confidence: 99%

Iodine Removal from Carbonate-Containing Alkaline Liquids Using Strong Base Resins, Hybrid Resins, and Silver Precipitation

Asmussen

Westesen

Cordova

et al. 2023

Ind. Eng. Chem. Res.

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The ability of several material types to remove aqueous iodine from a mildly alkaline, carbonate-rich nuclear waste stream was evaluated: strong base anion exchange resins (SBARs), hybrid resins, Ag-containing materials, and Bi-containing hybrid resins. A combination of batch testing and flow-through column testing was used in the evaluation. In batch testing, hybrid resins CHM-20, SIR-110-CE, and RTBI were shown to have high efficiency for the removal of both iodide and iodate simultaneously, while Ag-containing materials and SBAR demonstrated high capacity for iodide removal. One example of each material type (CHM-20, A532E, and Ionex 400) was further evaluated for their sorption isotherms and column performance. The Langmuir isotherm, or a Langmuir−Freundlich hybrid isotherm, best described the sorption of iodide to the CHM-20 hybrid resin and Purolite A532E. The Freundlich isotherm best described the uptake of iodate to CHM-20 and A532E and for both iodide and iodate to Ag-containing Ionex 400. In column testing, Purolite A532E had exceptional performance for overall iodide removal. However, with the capacity demonstrated, the A532E resin would exceed class C waste classification before breakthrough initiated, and column change-outs in processing would be dictated by eventual waste classification, not breakthrough. Ionex 400, a Ag-zeolite, was observed to degrade over time under mild alkaline column conditions, whereas the hybrid CHM-20 was limited in the single pass through design and would be best suited for applications where iodide and iodate are present and recirculation of the column effluent is feasible. This work highlights the feasibility of commercially available materials to separate radioiodine from liquid environments.

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“…However many kinds of adsorsorbent do not have sufficient advantages for iodide ion absorption. Several kinds of materials have been extensively studied as possible adsorbents, such as silver-containing material [12,13], metallic oxide [14] and metal-organic frameworks (MOFs) [15].…”

Section: Introductionmentioning

confidence: 99%

Cu-BTC derived CuO and CuO/Cu₂O composite: an efficient adsorption material to iodide ions

Wang

Gong

Tang

et al. 2023

Mater. Res. Express

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The copper benzene tricarboxylic acid (Cu-BTC) cannot be used as an adsorbent in water due to hydrophilicity. However, the calcination process can destroy the benzene ring structure to lose hydrophilicity and retains carbon structure skeleton. The CuO composite and CuO/Cu2O composite based on cubical Cu-BTC (C-Cu-BTC) and dodecahedral Cu-BTC (D-Cu-BTC) are successfully manufactured to absorb radioactive iodine ion from water. Before and after calcination, the SEM and XRD were used to characterize the changes of morphology and material structure. The adsorption experiment for iodine ion showed that their saturated adsorption capacities can reach 28.64 mg/g (for C-CuO), 49.63 mg/g (for D-CuO), 49.84 mg/g (for C-CuO/Cu2O) and 91.91 mg/g (for D-CuO/Cu2O), respectively. The iodine ion adsorption of adsorbent is an exothermic reaction as shown thermodynamic curves. Through results of adsorption kinetics it is proved that the iodide ion adsorption of CuO composite is physical adsorption and the iodide ion adsorption of CuO/Cu2O composite is chemical adsorption. Compared with CuO composite, CuO/Cu2O composite had better absorption capacity for iodide ions. Furthermore, the interference of common ion on iodide absorption has also been studied. The different types of ion, such as Cl−, SO42− and CO32−, have effects on the iodine ions absorption capacity for two types of adsorbent. These ions have a slightly effect on iodine ions adsorption of CuO composite. However, these ions have greater influences on iodine ions absorption capacity of the CuO/Cu2O composite. The biggest influence is CO32−, and the CO32− reduces the adsorption capacity by 44% iodine ion absorption capacity for the CuO/Cu2O composite.

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Removal of Radioactive Iodine Using Silver/Iron Oxide Composite Nanoadsorbents

Cited by 25 publications

References 45 publications

Recent Advances in the Removal of Radioactive Iodine and Iodide from the Environment

Recent Advances in the Removal of Radioactive Iodine and Iodide from the Environment

Iodine Removal from Carbonate-Containing Alkaline Liquids Using Strong Base Resins, Hybrid Resins, and Silver Precipitation

Cu-BTC derived CuO and CuO/Cu₂O composite: an efficient adsorption material to iodide ions

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Removal of Radioactive Iodine Using Silver/Iron Oxide Composite Nanoadsorbents

Cited by 25 publications

References 45 publications

Recent Advances in the Removal of Radioactive Iodine and Iodide from the Environment

Recent Advances in the Removal of Radioactive Iodine and Iodide from the Environment

Iodine Removal from Carbonate-Containing Alkaline Liquids Using Strong Base Resins, Hybrid Resins, and Silver Precipitation

Cu-BTC derived CuO and CuO/Cu2O composite: an efficient adsorption material to iodide ions

Contact Info

Product

Resources

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Cu-BTC derived CuO and CuO/Cu₂O composite: an efficient adsorption material to iodide ions