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Physiochemical Characterization of Iodine (V) Oxide Part II: Morphology and Crystal Structure of Particulate Films.
- Source :
- Crystals (2073-4352); 2015, Vol. 5 Issue 4, p534-550, 19p
- Publication Year :
- 2015
-
Abstract
- In this study, the production of particulate films of iodine (V) oxides is investigated. The influence that sonication and solvation of suspended particles in various alcohol/ketone/ester solvents have on the physical structure of spin or drop cast films is examined in detail with electron microscopy, powder x-ray diffraction, and UV-visible absorption spectroscopy. Results indicate that sonicating iodine oxides in alcohol mixtures containing trace amounts of water decreases deposited particle sizes and produces a more uniform film morphology. UV-visible spectra of the pre-cast suspensions reveal that for some solvents, the iodine oxide oxidizes the solvent, producing b and lowering the pH of the suspension. Characterizing the crystals within the cast films reveal their composition to be primarily HI<subscript>3</subscript>O<subscript>8</subscript>, their orientations to exhibit a preferential orientation, and their growth to be primarily along the ac-plane of the crystal, enhanced at higher spin rates. Spin-coating at lower spin rates produces laminate-like particulate films versus higher density, one-piece films of stacked particles produced by drop casting. The particle morphology in these films consists of a combination of rods, plates, cubes, and rhombohedra structure. [ABSTRACT FROM AUTHOR]
- Subjects :
- SONICATION
SOLVATION
IODINE
Subjects
Details
- Language :
- English
- ISSN :
- 20734352
- Volume :
- 5
- Issue :
- 4
- Database :
- Complementary Index
- Journal :
- Crystals (2073-4352)
- Publication Type :
- Academic Journal
- Accession number :
- 111971838
- Full Text :
- https://doi.org/10.3390/cryst5040534