Back to Search
Start Over
Crystallization behavior of boron in low-temperature immobilization of iodine waste
- Source :
- Journal of Solid State Chemistry. 305:122698
- Publication Year :
- 2022
- Publisher :
- Elsevier BV, 2022.
-
Abstract
- The immobilization of iodine waste is a challenge in the field of nuclear waste. In this work, iodine waste (silver-coated silica gel with different iodine loadings) was immobilized at low-sintering temperatures (500, 550, and 600 ​°C). XRD represented that the crystallized phases of the sintered matrix consist of AgI and B2O3. The crystallization behavior of boron can be found as the sintering temperature increased from 500 ​°C to 600 ​°C. FT-IR results proved that in the process of crystallization, part of the microstructure related to B–O stretching transformed from [BO4] to [BO3] units, which benefits low-temperature iodine waste immobilization due to the bonding energy of [BO3] is higher than that of [BO4]. Our work reveals the B-related microstructure transition in low-temperature immobilization iodine waste.
- Subjects :
- Materials science
Silica gel
Sintering
chemistry.chemical_element
Radioactive waste
Condensed Matter Physics
Microstructure
Iodine
Electronic, Optical and Magnetic Materials
law.invention
Inorganic Chemistry
chemistry.chemical_compound
chemistry
Chemical engineering
law
Materials Chemistry
Ceramics and Composites
Physical and Theoretical Chemistry
Bond energy
Crystallization
Boron
Subjects
Details
- ISSN :
- 00224596
- Volume :
- 305
- Database :
- OpenAIRE
- Journal :
- Journal of Solid State Chemistry
- Accession number :
- edsair.doi...........4262343c872f056ffaba69cdf39fb6ad