Silica with immobilized phosphinic acid-derivative for uranium extraction

Budnyak, Tetyana M.; Strizhak, Alexander V.; Gładysz–Płaska, Agnieszka; Sternik, Dariusz; Komarov, Igor V.; Kołodyńska, Dorota; Majdan, Marek; Тертых, В. А.

doi:10.1016/j.jhazmat.2016.04.056

Cited by 81 publications

(41 citation statements)

References 31 publications

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“…It should be noted that in case of inert atmosphere, such products as NO, NO 2 , CH 3 COCH 3 could be obtained by intramolecular oxidation or some chemical groups rearrangements. In Table 4, fixed ions placed on the descending intensity values according to MS and well correlated with literature data [56][57][58][59][60][61][62][63][64][65][66][67].…”

Section: Discussionsupporting

confidence: 73%

Preparation and properties of organomineral adsorbent obtained by sol–gel technology

Budnyak

Yanovska

Kołodyńska

et al. 2016

J Therm Anal Calorim

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Organomineral nanocomposite material has been obtained by sol-gel method through in situ formation of inorganic network in the presence of organic polymer. The most common silica precursor tetraethoxysilane (TEOS) and polysaccharide chitosan solution were used for the sol-gel transformations. The obtained chitosan-silica nanocomposite has been characterized by the physicochemical methods such as differential scanning calorimetry-thermogravimetry-mass spectrometry, Fourier transform infrared spectroscopy-thermogravimetry, elemental analysis, nitrogen adsorption/desorption isotherms, scanning electron microscopy, Fourier transform infrared spectroscopy to determine possible interactions between silica and chitosan macromolecules. Thermal destruction and products from gaseous phase in atmosphere of air and nitrogen were studied. It was found that introducing chitosan in silica network drastically change behavior of polymer during heat treatment in inert atmosphere. Adsorption of microquantities of Zn(II), Cu(II), Fe(III), Cd(II) and Pb(II) cations from the aqueous solutions by the obtained composite has been studied in comparison with the chitosan beads, previously cross-linked with glutaraldehyde. The adsorption capacity and kinetic sorption characteristics of the composite material were estimated. The obtained data were analyzed using the Langmuir and Freundlich isotherms, and the characteristic parameters for each isotherm were determined.

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Section: Discussionsupporting

confidence: 73%

Preparation and properties of organomineral adsorbent obtained by sol–gel technology

Budnyak

Yanovska

Kołodyńska

et al. 2016

J Therm Anal Calorim

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“…That is, the main adsorption site is oxygen in the hydroxyl groups on the surface, and similar results have been obtained previously (Budnyak et al, 2016;Gładysz-Płaska et al, 2018).…”

Section: Adsorption Experimentssupporting

confidence: 88%

Adsorption of U(VI) ions from aqueous solution using nanogoethite powder

Zhang

Lü

et al. 2018

Adsorption Science & Technology

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Goethite is a stable and widespread mineral present in soil with many uses, and it affects the transportation and immobilization of heavy metals in solution. Nanogoethite was synthesized by a chemical precipitation method and used to batch adsorb U(VI) in solution. Adsorption experiments were used to understand the role of nanogoethite in controlling the U(VI) adsorption behavior in soil. The morphology and the crystallinity of nanogoethite were characterized by scanning electron microscopy and wide-angle X-ray powder diffractometry, respectively.The results showed that the crystallinity of nanogoethite after the adsorption of uranium did not change, but small particles appeared on the surface of the scales. The surface area was determined from N 2 adsorption-desorption experiments using the Brunauer-Emmett-Teller to be 81.86 m 2 /g. The effects of factors such as the contact time, pH, adsorbent dosage, and the initial concentration of uranium on the adsorption of U(VI) were investigated. The experimental results showed that nanogoethite removed over 85% of the U(VI) in an aqueous 5.0 mg/L U(VI) solution at pH 4.0 and at 298 K. The pseudo-second-order model was used to simulate the adsorption process. The results show that chemisorption plays a major role in the adsorption process. The results of this study suggest that nanogoethite may play a significant role in controlling the migration and transfer of U(VI) in the soil, thus controlling the presence of U(VI) in soil.

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“…7a). Compared with other reported phosphonic acid derivatives, the as-prepared adsorbent showed a comparable adsorption capacity for U(VI) at neutral condition (Budnyak et al 2016). Later, simpler derivatives, imidazol-2-yl-phosphonic acid, was immobilized on silica (Fig.…”

Section: Adsorbents Bearing Phosphate Ligandsmentioning

confidence: 94%

“…Phosphines with imidazol-2-yl moiety, which is the ligand of many transition metals, has been successfully immobilized onto adsorbents for uranium removal. The work has been reported by Budnyak et al with a continuous process (Budnyak et al 2016(Budnyak et al , 2018. Firstly, Benzoimidazol-2-yl-phenylphosphinic acid was immobilized on the silica as adsorbents for uranyl ions (Fig.…”

Section: Adsorbents Bearing Phosphate Ligandsmentioning

confidence: 99%

Extraction and adsorption of U(VI) from aqueous solution using affinity ligand-based technologies: an overview

Wang

Zhuang

2019

Rev Environ Sci Biotechnol

100

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In terms of energy resource recovery and environmental protection, the separation of U(VI) from aqueous solutions is vital. Adsorption and solvent extraction are the most common separation technologies, which are also widely used for uranium recovery or removal from aqueous solution. The linear structure of uranyl ion and its multiple coordination feasibilities offer great opportunities for its extractive and adsorptive separation. This review briefly summarized and analyzed the recent advances in the separation of uranyl ions from aqueous solutions, mainly focusing on the selective extraction and adsorption using affinity ligands-based technology, which is promising method due to the high selectivity, capable of recovering uranium at low concentration and complicate aqueous environment. The affinity ligands for uranyl ions, including organophosphorus, calixarenes, amidoxime, imidazole and other derivatives were introduced. These donor ligands for design of extraction solvents or adsorbents for the separation of uranyl ions were summarized. The further research on the coordination chemistry towards uranyl ions and removal mechanisms would provide vital information for the development of more effective ligands with higher affinity, stability and compatibility in various systems, which is still challenging.

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Silica with immobilized phosphinic acid-derivative for uranium extraction

Cited by 81 publications

References 31 publications

Preparation and properties of organomineral adsorbent obtained by sol–gel technology

Preparation and properties of organomineral adsorbent obtained by sol–gel technology

Adsorption of U(VI) ions from aqueous solution using nanogoethite powder

Extraction and adsorption of U(VI) from aqueous solution using affinity ligand-based technologies: an overview

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