Selective capture uranium from acidic solution by potassium manganese ferrocyanide

Li, Tingting; Xia, Liangshu; Wang, Fang

doi:10.1016/j.jece.2022.108884

Cited by 15 publications

(2 citation statements)

References 13 publications

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“…Raw biopolymers have low porosity and persistent crystallinity, which restrict access to internal reactive groups and complicate hydration. It could be necessary to modify the polymer shape to reduce these controlling effects (beads, foams) [17,18]. Alternately, sorbent particle size reduction is required, but at the expense of labor-intensive solid/liquid separation operations for sorbent recovery after the process.…”

Section: Introductionmentioning

confidence: 99%

Adsorption behavior and antimicrobial activity of new chitosan based functionalized nanocomposites: A case study

Hamad,

Salem,

Abdel-Rahman

et al. 2024

Preprint

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Two new functionalized sorbents EPC@MC and ENC@MC were synthesized by the grafting of two amino ester derivatives EPC and ENC on magnetic chitosan nanoparticles respectively. The prepared sorbents were characterized using FTIR spectroscopy, SEM, and SEM-EDX facilities, TEM, SEAD pattern, and TGA analysis. The sorption process was investigated for three fresh contaminated water samples; sewage wastewater, iron and steel wastewater, and tannery wastewater respectively. The obtained data illustrated that EPC@MC and ENC@MC are highly selective for some heavy metals removal from the different samples of industrial wastewater. The sorption process was performed under different pH values. To complete our case study, the antimicrobial properties of the functionalized sorbents as well as that of the corresponding amino esters were characterized by determining the inhibition zone values against Gram-positive bacteria (Staphylococcus aureus), Gram-negative bacteria (Escherichia coli), as well as a yeast species (Candida albicans) and fungi including one filamentous fungus (Aspergillus fumigatus) and by using a well-modified diffusion method.

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Section: Introductionmentioning

confidence: 99%

Adsorption behavior and antimicrobial activity of new chitosan based functionalized nanocomposites: A case study

Hamad,

Salem,

Abdel-Rahman

et al. 2024

Preprint

View full text Add to dashboard Cite

show abstract

“…Uranium is one of the vital and core raw materials for nuclear reactor, and the demand for key strategic resource of uranium keeps increasing along with the rapid nuclear industrial development 2 . On the other hand, uranium is chemically toxic and radioactive, and human beings exposure to uranium may result in significant harm such as kidney damage, lung cancer, genetic diseases, urinary system ailments, and even death 3–5 . Unfortunately, a large amount of uranium has been inevitably released into the environment due to spent fuel reprocessing, uranium mining, nuclear experiment and research, nuclear accident, and so on 6 .…”

Section: Introductionmentioning

confidence: 99%

Preparation, characterization, and application of stable naphthalenediimide‐based metal–organic framework for cooperative capture low concentration uranium from wastewater

Zhao,

Li,

Liao

et al. 2023

Env Prog and Sustain Energy

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Extracting uranium from real water samples remains a great challenge due to low uranium concentration, concentrated competing ions and volumes of water. The design and preparation of uranium adsorbents with high efficiency and affinity are still difficult. Herein, we presented a facile one‐pot strategy to obtain a novel metal organic framework (denoted as Mn‐NDISA) for stable and efficient trapping of low concentration uranium. Mn‐NDISA with a built‐in hydrophobic cavity can boost the absorption affinity to 1.99 × 106 mL g−1 through the cooperative capture composed of electrostatic interaction, coordination force and hydrogen binding. Owing to the coordination‐available oxygen sites in flexible framework, a rapid kinetic equilibrium was achieved in just 25 min. Moreover, these exceptional adsorption features enabled Mn‐NDISA to successfully capture the naturally occurring uranium traces (~ppb) in wastewater samples, making it one of the most influential absorbents toward UO22+ ever reported. The experimental and theoretical studies revealed that the electrostatic attraction came from the surface negatively charged Mn‐NDISA and the positively charged UO22+. The coordination originated from Lewis basic hydroxyl, carbonyl groups, and Lewis acid UO22+, while hydrogen bonds further reinforced the as‐formed uranium binding complex. This research offered a promising cooperative capture strategy to improve the uranium affinity of the pristine MOF for trace contaminants removal in environmental remediation fields.

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Highly efficient removal of uranium (VI) from aqueous solutions by amino functionalized bentonite

Xie,

Gu,

Jiang

et al. 2024

J Radioanal Nucl Chem

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Selective capture uranium from acidic solution by potassium manganese ferrocyanide

Cited by 15 publications

References 13 publications

Adsorption behavior and antimicrobial activity of new chitosan based functionalized nanocomposites: A case study

Adsorption behavior and antimicrobial activity of new chitosan based functionalized nanocomposites: A case study

Preparation, characterization, and application of stable naphthalenediimide‐based metal–organic framework for cooperative capture low concentration uranium from wastewater

Highly efficient removal of uranium (VI) from aqueous solutions by amino functionalized bentonite

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