Project Title

FTIR Investigation of Synthesized Nanoceria Using Soluble Glass

Presenters

Angel VasquezFollow

Academic department under which the project should be listed

CSM - Physics

Faculty Sponsor Name

Kisa Ranasinghe

Additional Faculty

Rajnish Singh, Chemistry and Biochemistry, rsingh@kennesaw.edu

Abstract (300 words maximum)

Cerium Oxide nanoparticles have been of interest for many years due to their possible applications as an antioxidant that give them properties to scavenge toxic radicals found in neurodegenerative diseases, Cancer, Alzheimer’s, and inflammatory conditions. What gives Cerium Oxide nanoparticles their antioxidant property is the coexistence and Ce3+ and Ce4+. Cerium has two partially filled subshells that allow for several excited states. Our research group has created a soluble sodium borate glass composition doped with varying amounts of Cerium(IV) Oxide and melted to extract Cerium Oxide nanoparticles with different ratios of Ce3+/Ce4+. We have conducted an FTIR study of the parent borate glass, glass doped with Cerium(IV) Oxide, and extracted nanoceria obtained using different extraction solvents. Results show direct evidence of O-Ce-O and Ce-O-Ce stretching vibrational bonds in the extracted nanoceria compared to the glass embedded with nanoceria. The Ce-O-B stretching vibration that was visible in FTIR spectra for the nanoceria-embedded glass was not found in the extracted nanoceria. In addition, XRD have been taken of the various extraction solvents to analyze changes in the crystal structure of the glass structure and extracted nanoceria. Water was found to be the most effective solvent for the dissolution of the glass. Finally, extracted nanoceria was heat-treated at multiple temperatures to recrystallize and studied using both FTIR and XRD concluding that the final product was in fact the nanoceria.

Disciplines

Biological and Chemical Physics | Inorganic Chemistry | Nanomedicine

Project Type

Oral Presentation (15-min time slots)

How will this be presented?

Yes, in person

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FTIR Investigation of Synthesized Nanoceria Using Soluble Glass

Cerium Oxide nanoparticles have been of interest for many years due to their possible applications as an antioxidant that give them properties to scavenge toxic radicals found in neurodegenerative diseases, Cancer, Alzheimer’s, and inflammatory conditions. What gives Cerium Oxide nanoparticles their antioxidant property is the coexistence and Ce3+ and Ce4+. Cerium has two partially filled subshells that allow for several excited states. Our research group has created a soluble sodium borate glass composition doped with varying amounts of Cerium(IV) Oxide and melted to extract Cerium Oxide nanoparticles with different ratios of Ce3+/Ce4+. We have conducted an FTIR study of the parent borate glass, glass doped with Cerium(IV) Oxide, and extracted nanoceria obtained using different extraction solvents. Results show direct evidence of O-Ce-O and Ce-O-Ce stretching vibrational bonds in the extracted nanoceria compared to the glass embedded with nanoceria. The Ce-O-B stretching vibration that was visible in FTIR spectra for the nanoceria-embedded glass was not found in the extracted nanoceria. In addition, XRD have been taken of the various extraction solvents to analyze changes in the crystal structure of the glass structure and extracted nanoceria. Water was found to be the most effective solvent for the dissolution of the glass. Finally, extracted nanoceria was heat-treated at multiple temperatures to recrystallize and studied using both FTIR and XRD concluding that the final product was in fact the nanoceria.

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