ORGANIC-INORGANIC HYBRID MATERIALS OBTAINED BY THE SOL-GEL METHOD WITH POTENTIAL USE AS SUNCREENS

ORGANIC-INORGANIC HYBRID MATERIALS OBTAINED BY THE SOL-GEL METHOD WITH POTENTIAL USE AS SUNCREENS. This work aimed at the synthesis and characterization of particles of modified silica containing the organic filter dibenzoylmethane (DBM) by the hydrolytic sol-gel method, with modifications to the Stober route. The structures of the resulting Xerogels were characterized by diffuse reflectance UV-VIS spectroscopy in the solid state, infrared absorption spectroscopy, Scanning Electron Microscopy (SEM) and Si-29 Nuclear Magnetic Resonance (Si-29 NRM). The results showed favorable formation of hybrid organic-inorganic nanoparticles with efficient absorption/reflectance of radiation in the UV/VIS range, which enables their potential use as sunscreen.