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- W2916712170 abstract "Understanding the long-term release of radionuclides from nuclear waste to the environment is critical for public acceptance and sustainability of nuclear energy. Iodoapatite, a synthetic material similar to mineral vanadinite proposed for radioactive iodine-129 immobilization, is employed in this study as a model system for iodine waste forms and ceramic waste forms in general to understand its long-term chemical durability. Semidynamic leaching experiments were performed in cap-sealed Teflon vessels to evaluate the chemical durability at temperatures from 20 to 90 °C and pH values from 4 to 9 using deionized water and pH buffer solutions. The leachates were analyzed using inductively coupled plasma-mass spectrometry. The leached surfaces were examined by X-ray diffraction, scanning electron microscopy, and Raman spectroscopy. Effects of test variables including surface-to-volume ratio, leachant replacement interval, and environmental variables including temperature and pH on the dissolution rate were systematically investigated. The activation energy of the dissolution was 16.9 ± 1.5 kJ/mol for the matrix elements and 34.4 ± 3.9 kJ/mol for the diffusive iodine release. The order of the pH effect on the dissolution rate as a power law exponent was 0.87 ± 0.08. The effect of the surface-to-volume ratio and replacement interval was approximated by a single exponential function rise to maximum. Fully parametrized models were then combined to predict iodine release rate under various conditions. The result suggests that the long-term iodine release is controlled by iodide diffusion when the matrix dissolution rate is very low in near neutral pH solutions and by matrix dissolution when the dissolution rate is high at low pH. The present study demonstrates a mechanistic approach to parametrize models that can be used to evaluate the performance of nuclear waste forms under various disposal environments." @default.
- W2916712170 created "2019-03-02" @default.
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- W2916712170 date "2019-02-19" @default.
- W2916712170 modified "2023-10-18" @default.
- W2916712170 title "Chemical Durability and Dissolution Kinetics of Iodoapatite in Aqueous Solutions" @default.
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- W2916712170 cites W1560102847 @default.
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- W2916712170 cites W1963881049 @default.
- W2916712170 cites W1967251656 @default.
- W2916712170 cites W1970127494 @default.
- W2916712170 cites W1972657942 @default.
- W2916712170 cites W1972674990 @default.
- W2916712170 cites W1974174945 @default.
- W2916712170 cites W1975372748 @default.
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- W2916712170 cites W1980598077 @default.
- W2916712170 cites W1981887127 @default.
- W2916712170 cites W1985157679 @default.
- W2916712170 cites W1985697490 @default.
- W2916712170 cites W1986465213 @default.
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- W2916712170 cites W2020164321 @default.
- W2916712170 cites W2033316288 @default.
- W2916712170 cites W2043843726 @default.
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- W2916712170 cites W2076942041 @default.
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- W2916712170 cites W2183125105 @default.
- W2916712170 cites W2289313386 @default.
- W2916712170 cites W2312381505 @default.
- W2916712170 cites W243034495 @default.
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- W2916712170 doi "https://doi.org/10.1021/acsearthspacechem.8b00162" @default.
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