Effect of NOx on AgI formation in Ag-mordenite |
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| Authors: | A Ananthanarayanan S A Khot V Jaiswal A Joseph P P Songire D Banerjee |
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| Affiliation: | Process Development Division, Nuclear Recycle Group, Bhabha Atomic Research Centre, Mumbai, India |
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| Abstract: | Ag loaded mordenite can be used as a trap for radio-iodine arising from nuclear reprocessing operations. Typically, iodine is trapped in the Ag loaded mordenite by the formation of AgI in the pores of the mordenite, through a solid-vapour reaction. In the presence of NOx and water vapour, AgI is most likely formed by liquid-vapour reaction between AgNO3 and I2. This reaction results in the formation of large aggregates of AgI crystals on the surface of the mordenite, also leading to a yellow colouration of the mordenite, which is not observed when NOx and water vapour is absent. |
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| Keywords: | Iodine trapping modernite X-ray diffraction SEM EDAX |
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