Silver phosphate glasses for immobilization of radioactive iodine

Yang, Joon-Eon; Park, Hwan-Seo; Cho, Yung-Zun

doi:10.1016/j.anucene.2017.06.042

Cited by 27 publications

(10 citation statements)

References 20 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Extensive research conducted on amorphous phosphate solids indicated their interesting fundamental properties. Various phosphate glasses with appropriate chemical composition were considered to be applicable in laser devices [1][2][3][4], as highly toxic, radioactive waste storage [5][6][7] and hermetic seals [5,8], in electrochemical devices [9], for biomedical usage [10][11][12][13], [8]. Nevertheless, their practical use is limited because of poor chemical durability and difficulties in obtaining glassy material resulted from the tendency to crystallization exhibited during processing [8].…”

Section: Introductionmentioning

confidence: 99%

The glass formation and crystallization studies on iron phosphate–silicate glasses

Kuczek

Sułowska

Lach

et al. 2019

J Therm Anal Calorim

View full text Add to dashboard Cite

The assessment of impact of incorporation of various amount of Fe 2 O 3 at the expense of MgO and CaO on the glassy phase formation and thermal stability exhibited in P 2 O 5-SiO 2-K 2 O-MgO-CaO-Fe 2 O 3 system was carried out. The characteristic temperatures for iron phosphate-silicate glasses and glass-crystalline materials were designated from associated DSC curves. Selected samples were subjected to the process of induced crystallization, and products combined with particular exothermic effects were identified. Combination of DSC, XRD and SEM-EDS methods enabled to collect invaluable data concerning the course of crystallization of not only iron phosphate-silicate glasses subjected to the process of induced crystallization, but also glass-crystalline materials obtained directly through melt-quenched technique. The amount of particular crystalline products associated with selected devitrificates was determined via Rietveld technique. Results of the conducted study indicated that Fe 2 O 3 addition conduces to the decrease in crystallization temperatures and thermal stability which was reflected in calculated values of DT and K W parameters. Concomitantly, glass with 20 mol% iron (III) oxide addition exhibited significantly improved, distinctive thermal stability among the materials in the analyzed series. The connection of crystalline phases with gradual alterations in polymerization degree of glass matrix was also established. The performed study is a contribution to the knowledge of iron phosphate glasses family and associated glass-crystalline materials. Keywords Glass-forming ability Á Crystallization process Á Fe 2 O 3 Á Iron phosphate-silicate glasses & Justyna Kuczek

show abstract

Section: Introductionmentioning

confidence: 99%

The glass formation and crystallization studies on iron phosphate–silicate glasses

Kuczek

Sułowska

Lach

et al. 2019

J Therm Anal Calorim

View full text Add to dashboard Cite

show abstract

“…Iron phosphate glasses present outstanding properties enabling them to be used in various applications [1][2][3][4][5][6][7][8][9][10][11][12][13]. As an example, the great storage capacity of high wastes manifested by traditional iron phosphate glasses characterized by molar composition 60P 2 O 5 -40Fe 2 O 3 may be mentioned [14].…”

Section: Introductionmentioning

confidence: 99%

Correlation between glass transition effect and structural changes in multicomponent iron phosphate-silicate glasses

Kuczek

Jeleń

Sułowska

et al. 2019

J Therm Anal Calorim

View full text Add to dashboard Cite

Iron phosphate-silicate glasses from P 2 O 5-SiO 2-K 2 O-MgO-CaO-Fe 2 O 3 system were subjected to the thermal and spectroscopic studies in order to gain information about their structure and thermal behavior in the range of glass transition effect. Research includes results obtained via DSC, MIR and DRIFT spectroscopy. Designated values of glass transition temperature and specific heat change slightly increases with Fe 2 O 3 incorporation. Spectra collected during thermal treatment of glasses containing 2 and 30 mol% Fe 2 O 3 exhibited various changes. Fe 2 O 3 addition affected the glass structure by its reinforcement and led to its preservation during thermal treatment. The connection between density, molar volume, oxygen packing density and the chemical composition's alteration were also established because of the direct dependence of physical properties and the structure. Obtained results supported thermal and spectroscopic studies. Conducted research is considered as a contribution to the knowledge about the family of iron phosphate glasses, which are known from their interesting properties and widely used applications.

show abstract

“…While the previous section includes on the applications of composite borosilicate glasses for the immobilization of various types of radioactive wastes, this section discusses some key studies on the immobilization behavior and capacities of phosphate glasses. − Yang et al reported the immobilization and leaching behavior of iodine waste in AgI–Ag 2 O–P 2 O 5 glasses . The authors prepared various AgI–Ag 2 O–P 2 O 5 compositions by melt-quenching method, and the resulting materials were characterized by XRD, X-ray photoelectron spectroscopy (XPS), and SEM techniques.…”

Section: Types Of Waste Formsmentioning

confidence: 99%

“…While the previous section includes on the applications of composite borosilicate glasses for the immobilization of various types of radioactive wastes, this section discusses some key studies on the immobilization behavior and capacities of phosphate glasses. 51−54 54 The authors prepared various AgI−Ag 2 O−P 2 O 5 compositions by melt-quenching method, and the resulting materials were characterized by XRD, X-ray photoelectron spectroscopy (XPS), and SEM techniques. The authors carried out PCT-A test to investigate the leaching behavior of iodine from AgI−Ag 2 O−P 2 O 5 , and inductively coupled plasma-optical emission spectroscopy and mass spectroscopy (ICP-OES and ICP-MS) were used to determine the elemental concentrations in the leaching solutions.…”

Section: Types Of Waste Formsmentioning

confidence: 99%

Inorganic Waste Forms for Efficient Immobilization of Radionuclides

et al. 2021

View full text Add to dashboard Cite

The immobilization of long-lived radionuclide wastes generated from nuclear power plants (NPPs) during NPP operation, fuel reprocessing, and decommissioning of nuclear reactors is of great environmental concern. Designing suitable matrices with high durability, stability, and resistivity to various physical and chemical conditions (temperature, pressure, radiation, acidity/alkalinity, etc.) are required for the safe disposal and effective immobilization of radioactive wastes. In this review, we highlight and discuss the key developments in the design and applications of major inorganic waste forms for radioactive waste immobilization. Specifically, we review (i) glasses (borosilicates, phosphates, and sintered glasses), (ii) cements (Portland cement, cast stone/saltstone, hydroceramics, and geopolymer), (iii) synrocs (hollandite, zirconolite, and perovskite), and (iv) ceramics (titanates, sodalite, apatite, monazites, and goethite/magnetite). Additionally, we present future challenges that should be addressed during the design and selection of suitable waste forms for the immobilization of radionuclides. We believe that this paper can deepen our understanding of various waste forms and their roles in radioactive waste immobilization.

show abstract

Silver phosphate glasses for immobilization of radioactive iodine

Cited by 27 publications

References 20 publications

The glass formation and crystallization studies on iron phosphate–silicate glasses

The glass formation and crystallization studies on iron phosphate–silicate glasses

Correlation between glass transition effect and structural changes in multicomponent iron phosphate-silicate glasses

Inorganic Waste Forms for Efficient Immobilization of Radionuclides

Contact Info

Product

Resources

About