Electrochemical Deposition and Dissolution of Thallium from Sulfate Solutions

Ussipbekova, Yenlik; Seilkhanova, Gulziya A.; Jeyabharathi, C.; Scholz, Fritz; Kurbatov, Andrey; Наурызбаев, М. К.; Berezovskiy, A. V.

doi:10.1155/2015/357514

Cited by 13 publications

(5 citation statements)

References 6 publications

(4 reference statements)

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“…Two peaks occurred, one at the reduction of Tl + to Tl and one at the oxidation of Tl to Tl + , at the potential of -1.0 V/NHE and -0.3 V/NHE, respectively. At -0.65 V/NHE, a small peak corresponds to the reduction of oxygen [18], which is inevitable. The curves drop at -0.8 V/NHE, which corresponds to the beginning of the reduction of Tl + to a Tl deposit.…”

Section: Voltammetry Experimentsmentioning

confidence: 99%

Manufacture of Tl targets by electrodeposition for the study of excitation functions of ²⁰³Pb

et al. 2023

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Natural Tl targets were manufactured by electrochemical deposition on a foil gold backing. The electrochemical parameters were defined after several experiments and reverse pulse potential was chosen to avoid the formation of filaments and dendrites. Once these parameters were established, enriched 205Tl targets were manufactured on a gold foil backing to be used to measure the cross sections for 203Pb production by deuteron induced reactions. The production yield was calculated from our excitation functions and was found to be 54 MBq/µAh in the energy interval 32.5 MeV – 30 MeV.

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Section: Voltammetry Experimentsmentioning

confidence: 99%

Manufacture of Tl targets by electrodeposition for the study of excitation functions of ²⁰³Pb

et al. 2023

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“…Tl(I) can be removed from wastewater in a variety of ways [26], including precipitation [27], solvent extraction [28,29], and electrochemical deposition [30,31]. These approaches suffer from removal efficiency, high operating costs, and high energy consumption.…”

Section: Introductionmentioning

confidence: 99%

Efficient Adsorption of Tl(I) from Aqueous Solutions Using Al and Fe-Based Water Treatment Residuals

Qing

et al. 2022

Processes

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Iron and aluminum water treatment residuals from a water supply plant were used as adsorbents for Tl(I) to treat thallium-containing Tl(I) wastewater and realize the resource utilization of water treatment residuals. The feasibility study results showed that Fe-WTR and Al-WTR reached adsorption equilibria within 120 min. The Langmuir model showed maximum adsorption capacities of Tl(I) on Fe-WTR and Al-WTR as 3.751 and 0.690 mg g−1 separately at an initial concentration of 5 mg L−1. The adsorption capacities of Fe-WTR and Al-WTR positively correlated with pH. The removal of Tl(I) using Fe-WTR exceeded Al-WTR; the adsorbed Tl(I) in Fe-WTR occurred primarily in the reduced state, while the Tl(I) adsorbed in Al-WTR was mainly in acid-extractable and reduced states. FTIR and XPS data showed that Tl(I) and Fe/Al-OH-functional groups formed stable surface complexes (Fe/Al-O-Tl) during adsorption, and there was no redox reaction. This confirmed that WTR is a highly efficient adsorbent for the stable removal of Tl(I), which provides a practical foundation for industrial application in Tl(I)-containing wastewater treatment.

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“…However, it is quite difficult to obtain high-purity thallium by electrolysis due to the similarity of chemical properties and very close position of electrode potentials of thallium and other metal impurities. The authors demonstrated previously [8][9][10][11][12] the principles of possible electrochemical thallium refining through the dissolution stage of anodically-deposited thallium(III) oxide.…”

Section: Introductionmentioning

confidence: 99%

Electrochemical deposition and dissolution of thallium oxide (III)

Seilkhanova¹,

Kurbatov²,

Ussipbekova³

et al. 2017

Studia UBB Chemia

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ABSTRACT. The regularities of precipitation and dissolution of thallium (III) oxide were studied by using cyclic and linear voltammetry. It is established that at 1.5V potential, a peak corresponding to the process of oxidation of monovalent to trivalent thallium is observed, according to: Tl + → Tl 3+ + 2e -. Two peaks are observed in the cathode region, at 0.65V and -0.17V potential values. At E = -0.17V, the thallium oxide Tl 2 O 3 dissolves, as at E = 0.65V, the intermediate products of the hydrolysis of trivalent thallium (Tl(OH) 2+ , Tl (OH) 2+ ) are probably recovered. It was found that with increase of solution pH, the dissolution processes of thallium oxide intensified, while the optimum pH value was 11, also activation energy of the electrodeposition of thallium(III) oxide were calculated.

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Electrochemical Deposition and Dissolution of Thallium from Sulfate Solutions

Cited by 13 publications

References 6 publications

Manufacture of Tl targets by electrodeposition for the study of excitation functions of ²⁰³Pb

Manufacture of Tl targets by electrodeposition for the study of excitation functions of ²⁰³Pb

Efficient Adsorption of Tl(I) from Aqueous Solutions Using Al and Fe-Based Water Treatment Residuals

Electrochemical deposition and dissolution of thallium oxide (III)

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Electrochemical Deposition and Dissolution of Thallium from Sulfate Solutions

Cited by 13 publications

References 6 publications

Manufacture of Tl targets by electrodeposition for the study of excitation functions of 203Pb

Manufacture of Tl targets by electrodeposition for the study of excitation functions of 203Pb

Efficient Adsorption of Tl(I) from Aqueous Solutions Using Al and Fe-Based Water Treatment Residuals

Electrochemical deposition and dissolution of thallium oxide (III)

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Product

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Manufacture of Tl targets by electrodeposition for the study of excitation functions of ²⁰³Pb

Manufacture of Tl targets by electrodeposition for the study of excitation functions of ²⁰³Pb