On the existence of AgM9(VO4)(6)I (M = Ba, Pb)
SCIE
SCOPUS
- Title
- On the existence of AgM9(VO4)(6)I (M = Ba, Pb)
- Authors
- Johnstone, E. V.; Bailey, D. J.; Stennett, M. C.; Heo, J.; Hyatt, N. C.
- Date Issued
- 2017-10
- Publisher
- Royal Society of Chemistry
- Abstract
- The syntheses of the reported compounds AgM9(VO4)(6)I (M = Ba, Pb) were reinvestigated. Stoichiometric amounts of AgI with either M-3(VO4)(2) (M = Ba, Pb) or PbO and V2O5 were reacted in the solid-state at elevated temperatures in air or in flame-sealed quartz vessels. The resulting products were characterized by X-ray diffraction, scanning electron microscopy with energy dispersive X-ray analysis, and thermal analyses. Results show that, for all reaction conditions, the target AgM9(VO4)(6)I (M = Ba, Pb) phases could not be isolated. Instead, heterogeneous phase distributions of primarily M-3(VO4)(2) (M = Ba, Pb) and AgI were obtained. These findings demonstrate that AgI incorporation into single phase, iodine-deficient apatite derivatives for the immobilization of iodine-129 are not feasible under such conditions. This conclusion is important for the conditioning of iodine-129 in advanced reprocessing flowsheets, where iodine is typically sequestered as AgI.
- URI
- https://oasis.postech.ac.kr/handle/2014.oak/50945
- DOI
- 10.1039/c7ra09313f
- ISSN
- 2046-2069
- Article Type
- Article
- Citation
- RSC Advances, vol. 7, no. 77, page. 49004 - 49009, 2017-10
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