Phase structure and aqueous stability of TRPO waste incorporation into Gd2Zr2O7 pyrochlore
Phase structure and aqueous stability of TRPO waste incorporation into Gd2Zr2O7 pyrochlore
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TRPO 废物掺入 Gd2Zr2O7 烧绿石的相结构和水稳定性
DOI:
10.1016/j.ceramint.2015.05.140
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发表时间:
2015-11
影响因子:
5.2
通讯作者:
Yanlin Wu
中科院分区:
文献类型:
--
作者:
Yi Ding;Tao Duan;Bingrong Dang;Yanlin Wu
The present work explores the potential of Gd2Zr2O7pyrochlore based materials for incorporation of trialkyl phosphine oxides (TRPO) waste which is a mixture of multi-nuclides with multi-valence. A series of (Gd,A)2(Zr,B)2O7ceramics were synthesized to investigate the influence of multi-nuclides incorporation on phase structure and aqueous stability of Gd2Zr2O7. XRD and BSE results show that all the ceramics exhibit a single pyrochlore structure. Raman spectroscopy reveals that the degree of structural order for (Gd,A)2(Zr,B)2O7solid solutions increases with enhanced TRPO waste content. In addition, aqueous stability testing was carried out using the MCC-1 static leach test method. The results demonstrate that the normalized release rates of the elements in TRPO waste are kept in a low value below 10−4g m−2d−1. La shows the highest normalized release rate of all the involved elements, while Zr exhibits the best chemical stability.
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影响因子:
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