STRUCTURAL CHARACTERISATIONS AND THERMAL PROPERTIES OF POTASSIUM-ENRICHED MESOPOROUS 45S5 BIOGLASS NANOPARTICLES
Alshemary, Ammar Z., Naser, Ali Abra, Haidary, S. M., Cardakli, Ismail Cardakli
This study uses the sol-gel method to explore the structural and thermal properties of synthesised potassium-doped 45S5 bioactive glass (BG) nanoparticles. The X-ray diffraction (XRD) revealed the crystalline phase of Na2Ca4(PO4)2SiO4 and a shift in diffraction peaks due to the potassium integration, suggesting enhanced crystallinity. Field Emission Scanning Electron Microscopy (FESEM) showed a change in particle morphology with the potassium addition, indicating modified nucleation and growth processes. The thermogravimetric analysis (TGA) demonstrated improved thermal stability in the potassium-doped samples, with reduced weight loss across all temperature ranges. The nitrogen adsorption-desorption isotherm analysis revealed an increase in the surface area from 11.54 m2 center dot g-1 in the BG to 11.77 m2 center dot g-1 in the potassiumdoped BG and a decrease in the pore volume and average pore size, indicating a significant structural change. These results highlight the potential of potassium-doped BG in biomedical applications, offering enhanced bioactivity and thermal stability.
- Journal
- CERAMICS-SILIKATY
- Year
- 2024
- Volume
- 68
- Issue
- 3
- Pages
- 353-359
- ISSN
- 0862-5468
- eISSN
- 1804-5847
- DOI
- 10.13168/cs.2024.0034
- WoS UID
- WOS:001278524400001