Abstract
Nuclear waste water contains many actinides which coordinate with water molecules to form complexes. The hydration of water molecules with varying coordination numbers and modes makes it interesting and intriguing in understanding the extraction process of these radioactive ions. In order to separate these complexes from the nuclear waste water, many organic ligands are being used. However, prior knowledge on the nature of electronic environment of these hydration patterns will help us to understand the extraction mechanism. Therefore, a series of complexes such as [Np(H2O)9]4+, [Cm(H2O)9]3+, [Am(H2O)9]3+, [Pu(H2O)9]4+, [Pu(H2O)9]3+, [U(H2O)9]3+, [NpO2(H2O)5]+, [UO2(H2O)5]2+ and [PuO2(H2O)5]2+ have been calculated by means of relativistic DFT. Bond length analysis and energy decomposition analysis are executed with the intention to comprehend the bonding situation of these complexes. To account for the stabilizing interactions amid the radioactive ion and the water molecules, a detailed QTAIM investigation is done. It is seen that the metals having higher oxidation state readily complex with water molecules. Energy decomposition analysis throws light on the significant orbital interactions in the [M(H2O)9] n complexes, whereas in the metal oxide complexes significant contribution is resulted from electrostatic interactions. In summary, this investigation brings out the nuances of coordination modes of solvation in nuclear waste water which will help us to explore and design novel extraction techniques in near future.
Acknowledgment
RVS is thankful to the Department of Science and Technology – Science and Engineering Research Board (DST-SERB) for the Early Career Research grant (Ref. No. ECR/2017/001147), and CE is grateful to DST-SERB for financial assistance from RVS’s ECR project.
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Author contributions: All the authors have accepted responsibility for the entire content of this submitted manuscript and approved submission.
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Research funding: None declared.
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Conflict of interest statement: The authors declare no conflicts of interest regarding this article.
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Supplementary Material
This article contains supplementary material (https://doi.org/10.1515/PSR-2022-0262).
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Artikel in diesem Heft
- Frontmatter
- Reviews
- Modern analytical approach in biopolymer characterization
- Development of nanocellulose fiber reinforced starch biopolymer composites: a review
- Recent developments in sago starch thermoplastic bio-composites
- Mechanical degradation of sugar palm crystalline nanocellulose reinforced thermoplastic sugar palm starch (TPS)/poly (lactic acid) (PLA) blend bionanocomposites in aqueous environments
- Computational design of the novel building blocks for the metal-organic frameworks based on the organic ligand protected Cu4 cluster
- Highly functional nanocellulose-reinforced thermoplastic starch-based nanocomposites
- Spectral peak areas do not vary according to spectral averaging scheme used in functional MRS experiments at 3 T with interleaved visual stimulation
- Triterpenoids of antibacterial extracts from the leaves of Bersama abyssinica Fresen (Francoaceae)
- Immediate effects of atrazine application on soil organic carbon and selected macronutrients and amelioration by sawdust biochar pretreatment
- Process configuration of combined ozonolysis and anaerobic digestion for wastewater treatment
- Concentration levels and risk assessment of organochlorine and organophosphate pesticide residue in selected cereals and legumes sold in Anambra State, south-eastern Nigeria
- XRD and cytotoxicity assay of submitted nanomaterial industrial samples in the Philippines
- Comparative study of the photocatalytic degradation of tetracycline under visible light irradiation using Bi24O31Br11-anchored carbonaceous and silicates catalyst support
- Xanthoangelol, geranilated chalcone compound, isolation from pudau leaves (Artocarpus kemando Miq.) as antibacterial and anticancer
- Barley thermoplastic starch nanocomposite films reinforced with nanocellulose
- Integration of chemo- and bio-catalysis to intensify bioprocesses
- Fabrication of starch-based packaging materials
- Potato thermoplastic starch nanocomposite films reinforced with nanocellulose
- Review on sago thermoplastic starch composite films reinforced with nanocellulose
- Wheat thermoplastic starch composite films reinforced with nanocellulose
- Synergistic effect in bimetallic gold catalysts: recent trends and prospects
- Simultaneous removal of methylene blue, copper Cu(II), and cadmium Cd(II) from synthetic wastewater using fennel-based adsorbents
- The investigation of the physical properties of an electrical porcelain insulator manufactured from locally sourced materials
- Concentration evaluation and risk assessment of pesticide residues in selected vegetables sold in major markets of Port Harcourt South-South Nigeria
- Detection of iodine in aqueous extract of plants through modified Mohr’s method
- Exploration of bioactive compounds from Mangifera indica (Mango) as probable inhibitors of thymidylate synthase and nuclear factor kappa-B (NF-Κb) in colorectal cancer management
- A new sphingoid derivative from Acacia hockii De Wild (Fabaceae) with antimicrobial and insecticidal properties
- Protection of wood against bio-attack and research of new effective and environmental friendly fungicides
- Computational investigation of Arbutus serratifolia Salisb molecules as new potential SARS-CoV-2 inhibitors
- Exploring the solvation of water molecules around radioactive elements in nuclear waste water treatment