Materiais híbridos orgânico-inorgânicos (ormosil) obtidos por sol-gel com potencial uso como filtro solar
| Autor: | Jane K. de F. B. Machado, Alex L. Marçal, Omar J. de Lima, Katia J. Ciuffi, Eduardo J. Nassar, Paulo S. Calefi |
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| Jazyk: | English<br />Spanish; Castilian<br />Portuguese |
| Rok vydání: | 2011 |
| Předmět: | |
| Zdroj: | Química Nova, Vol 34, Iss 6, Pp 945-949 (2011) |
| Druh dokumentu: | article |
| ISSN: | 1678-7064 0100-4042 |
| DOI: | 10.1590/S0100-40422011000600006 |
| Popis: | 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 Stöber 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 29Si Nuclear Magnetic Resonance (29Si 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. |
| Databáze: | Directory of Open Access Journals |
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