Recent progress in high-performance environmental impacts of the removal of radionuclides from wastewater based on metal–organic frameworks: a review

Sheta, Sheta M.; Hamouda, Mohamed A.; Ali, Omnia I.; Kandil, A. T.; Sheha, Reda R.; El-Sheikh, Said M.

doi:10.1039/d3ra04177h

Cited by 14 publications

(3 citation statements)

References 407 publications

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“…Novel materials, including MXenes, MOFs, and titanate nanosheets (Ai et al, 2018;Shahzad et al, 2020), have also been utilized for the adsorptive removal of cesium ions. MOFs, in particular, have shown remarkable potential for this application (Sheta et al, 2023). The exceptional adsorption properties of various MOFs for Cs + was reported (Naeimi and Faghihian, 2017;Cheng et al, 2018;Guo et al, 2021;Roy and Stoddart, 2021).…”

Section: Inorganic Adsorbentsmentioning

confidence: 99%

Cesium removal from radioactive wastewater by adsorption and membrane technology

Zhuang,

Wang

2023

Front. Environ. Sci. Eng.

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Radiocesium is frequently present in radioactive wastewater, while its removal is still a challenge due to its small hydrated radius, high diffusion coefficient, and similar chemical behavior to other alkali metal elements with high background concentrations. This review summarized and analyzed the recent advances in the removal of Cs+ from aqueous solutions, with a particular focus on adsorption and membrane separation methods. Various inorganic, organic, and biological adsorbents have undergone assessments to determine their efficacy in the removal of cesium ions. Additionally, membrane-based separation techniques, including reverse osmosis, forward osmosis, and membrane distillation, have also shown promise in effectively separating cesium ions from radioactive wastewater. Additionally, this review summarized the main approaches, including Kurion/SARRY system + desalination system and advanced liquid processing system, implemented after the Fukushima Daiichi nuclear power plant accident in Japan to remove radionuclides from contaminated water. Adsorption technology and membrane separation technology play a vital role in treatment of contaminated water.

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Section: Inorganic Adsorbentsmentioning

confidence: 99%

Cesium removal from radioactive wastewater by adsorption and membrane technology

Zhuang,

Wang

2023

Front. Environ. Sci. Eng.

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“…Many of the methods used for environmental purification of metals 5 cannot be used for removal of metals from the gastrointestinal tract. However, it may be possible to remove them using adsorbents by selecting appropriate edible materials.…”

Section: Introductionmentioning

confidence: 99%

Simultaneous removal of caesium and strontium using different removal mechanisms of probiotic bacteria

Endo,

Karasawa,

Aoyagi

2024

Sci Rep

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When radioactive materials are released into the environment due to nuclear power plant accidents, they may enter into the body, and exposing it to internal radiation for long periods of time. Although several agents have been developed that help excrete radioactive elements from the digestive tract, only one type of radioactive element can be removed using a single agent. Therefore, we considered the simultaneous removal of caesium (Cs) and strontium (Sr) by utilising the multiple metal removal mechanisms of probiotic bacteria. In this study, the Cs and Sr removal capacities of lactobacilli and bifidobacteria were investigated. Observation using an electron probe micro analyser suggested that Cs was accumulated within the bacterial cells. Since Sr was removed non metabolically, it is likely that it was removed by a mechanism different from that of Cs. The amount of Cs and Sr that the cells could simultaneously retain decreased when compared to that for each element alone, but some strains showed only a slight reduction in removal. For example, Bifidobacterium adolescentis JCM1275 could simultaneously retain 55.7 mg-Cs/g-dry cell and 8.1 mg-Sr/g-dry cell. These results demonstrated the potentials of utilizing complex biological system in simultaneous removal of multiple metal species.

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“…The solvation environment plays a vital role in regulating the stability constant and coordination environment of solutes. − Solvent-free synthesis, such as ionothermal synthesis, , melting of azoles, and the use of deep eutectic solvents, , has been widely applied in coordination chemistry in view of its unique solvation environment. − Solvent-free synthesis represents a greener synthetic approach to eliminating radio-contaminated solvents when handling actinide compounds , and provides a unique solvation environment that may lead to reaction mechanisms different from those of traditional solvothermal methods, , offering a new opportunity to enrich the coordination diversity in Th clusters. Organic azoles, particularly triazoles with low melting point, attract our attention due to its widespread use in coordination chemistry .…”

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confidence: 99%

Thorium Cluster Synthesized by a Solvent-Free Flux Approach: The Richest Coordination Diversity and Application Exploration

Zhou,

Yang,

Weng

et al. 2024

Inorg. Chem.

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The renaissance of research interests in actinide oxo clusters in the past decade arises from both the concerns of radioactive contamination and their potential utility as nanoscale materials. Compared to the uranium cluster, the thorium (Th) cluster shows less coordination variation. Herein, we presented a unique Th cluster (ThC-1) that exhibits the most diverse coordination chemistry found within a single Th cluster via a solvent-free flux synthesis approach. The melt triazole not only offers a unique solvation environment that may be responsible for the coordination diversity in ThC-1 but also represents the first nitrogendonor capping ligand in Th clusters. The potential utility of ThC-1 as a heterogeneous catalyst was also explored for a classical CO 2 cycloaddition reaction. This work offers a novel approach in synthesizing Th clusters, broadening the realm of the structural diversity of Th.

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Recent progress in high-performance environmental impacts of the removal of radionuclides from wastewater based on metal–organic frameworks: a review

Abstract: The nuclear industry is rapidly developing and the effective management of nuclear waste and monitoring the nuclear fuel cycle are crucial.

Cited by 14 publications

References 407 publications

Cesium removal from radioactive wastewater by adsorption and membrane technology

Cesium removal from radioactive wastewater by adsorption and membrane technology

Simultaneous removal of caesium and strontium using different removal mechanisms of probiotic bacteria

Thorium Cluster Synthesized by a Solvent-Free Flux Approach: The Richest Coordination Diversity and Application Exploration

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