International Journal of Molecular Sciences, Journal Year: 2023, Volume and Issue: 24(18), P. 13693 - 13693

Published: Sept. 5, 2023

Synthetic opals, a composition of homogeneous silica spheres in the mesoscale size range, have attracted attention scientists due to their favorable chemical and physical properties. Their inertness stability, biocompatibility, homogeneity, elevated specific surface area, ease functionalization surfaces make them versatile nanotool. In present study, Stöber process was used investigate effect parameters, such as reagent concentration synthesis temperature, on resulting particle structure. The optimal conditions for successfully obtaining particles range with high reproducibility were investigated. Several procedures dependence reaction temperature presented allow selection assumed diameter spheres. numerous samples obtained examined size, structure, area. On basis area measurements nuclear magnetic resonance studies, internal hierarchical structure spherical confirmed consisting solid core layers secondary covered by shell. Structural studies (X-ray Spectroscopy, X-ray Absorption Near-Edge Structure, resonance), together infrared vibrational spectroscopy, showed no mesospheres reagents particles.

Language: Английский