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| An easy chemical route for the synthesis of (¦Ã-Fe2O3@SiO2)n@TiO2 functional hybrid nanoparticles is reported in this paper. The hybrid nanoparticles are composed of spherical nanoparticles about 100 nm in diameter, with several ¦Ã-Fe2O3 fine particles about 15 nm in diameter as cores distributing within the titania matrix and silica as coatings and barrier layers between the magnetic cores and titania shells. The (¦Ã-Fe2O3@SiO2)n@TiO2 hybrid nanoparticles show good magnetic response and got together within 20 s in a magnetic field. Photodegradation examination of the magnetic hybrid nanoparticles was carried out in methylene blue solutions illuminated under UV light in a photochemical reactor. It is shown that the (¦Ã-Fe2O3@SiO2)n@TiO2 functional hybrid nanoparticles are photocatalytically actived. About 80% of methylene blue decomposed in 80 min in the presence of magnetic hybrid nanoparticles under illumination of UV light. |
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sltmac(½ð±Ò+1): 2012-02-26 22:04:55
gohappy(½ð±Ò+8, ·ÒëEPI+1): ¡ïÓаïÖú 3q 2012-02-27 07:38:31
gohappy(½ð±Ò+8, ·ÒëEPI+1): ¡ïÓаïÖú 3q 2012-02-27 07:38:31
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